Journal articles on the topic 'Photovoltaic power systems'
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Fyali, Jibji-Bukar, and Anaya-Lara Olimpo. "Offline Photovoltaic Maximum Power Point Tracking." E3S Web of Conferences 64 (2018): 06007. http://dx.doi.org/10.1051/e3sconf/20186406007.
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As more renewable energy sources are connected to the electrical grid, it has become important that these sources participate in providing system support. It has become needful for grid-connected solar photovoltaics to participate in support functions like frequency support. However, photovoltaic systems need to implement a maximum power tracking algorithm to operate at maximum power and a method for de-loading photovoltaic systems is necessary for participation in frequency support. Some conventional maximum power tracking techniques are implemented in real time and will not adjust their output fast enough to provide system support while other may respond fast but are not very efficient in tracking the maximum power point of a photovoltaic system. This paper presents an offline method to estimate the maximum power voltage and current based on the characteristics of the photovoltaics module available in the datasheet and using the estimated values to operate the photovoltaics at maximum power. The performance of this technique is compared to the conventional technique. This paper also describes how the photovoltaic system can be de-loaded.
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Vilathgamuwa, Mahinda, Dulika Nayanasiri, and Shantha Gamini. "Power Electronics for Photovoltaic Power Systems." Synthesis Lectures on Power Electronics 5, no. 2 (August 20, 2015): 1–131. http://dx.doi.org/10.2200/s00638ed1v01y201504pel008.
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Bourdoucen, Hadj, Joseph A. Jervase, Abdullah Al-Badi, Adel Gastli, and Arif Malik. "Photovoltaic Cells and Systems: Current State and Future Trends." Sultan Qaboos University Journal for Science [SQUJS] 5 (December 1, 2000): 185. http://dx.doi.org/10.24200/squjs.vol5iss0pp185-207.
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Photovoltaics is the process of converting solar energy into electrical energy. Any photovoltaic system invariably consists of solar cell arrays and electric power conditioners. Photovoltaic systems are reliable, quiet, safe and both environmentally benign and self-sustaining. In addition, they are cost-effective for applications in remote areas. This paper presents a review of solar system components and integration, manufacturing, applications, and basic research related to photovoltaics. Photovoltaic applications in Oman are also presented. Finally, the existing and the future trends in technologies and materials used for the fabrication of solar cells are summarized.
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Hu, Boxun, Yanan Chen, Desheng Kong, and Yiming Yao. "Large, grid-connected solar photovoltaic power plants renewable energy." Applied and Computational Engineering 7, no. 1 (July 21, 2023): 375–89. http://dx.doi.org/10.54254/2755-2721/7/20230328.
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As an essential part of renewable energy, the solar photovoltaic technic grows rapidly with two main types: off-grid and grid-connected systems. This paper focuses on grid-connected solar photovoltaic power plants and introduces the main physical principles of solar photovoltaics. Typical components of solar photovoltaic power plants are also presented, along with their functions. The extraordinary environmental impact and the relatively low and decreasing cost of grid-connected solar photovoltaics reflect its excellent development potential. Compared with other energy, grid-connected solar photovoltaics provides an alternative to conventional fossil fuel generation. With the improvement of silicon purification technology and the working efficiency of solar batteries, the scale of grid-connected solar photovoltaics power plants will be further expanded.
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Okhorzina, Alena, Alexey Yurchenko, and Artem Kozloff. "Autonomous Solar-Wind Power Forecasting Systems." Advanced Materials Research 1097 (April 2015): 59–62. http://dx.doi.org/10.4028/www.scientific.net/amr.1097.59.
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The paper reports on the results of climatic testing of silicon photovoltaic modules and photovoltaic power systems conducted in Russia (Siberia and the Far East). The monitoring system to control the power system work was developed. Testing over 17 years and a large amount of experimental studies enabled us to develop a precise mathematical model of the photovoltaic module in natural environment taking into account climatic and hardware factors.
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Armstrong O Njok and Igwe O Ewona. "Diurnal analysis of enhanced solar photovoltaic systems using automatic cooling mechanism." World Journal of Advanced Engineering Technology and Sciences 5, no. 2 (March 30, 2022): 016–23. http://dx.doi.org/10.30574/wjaets.2022.5.2.0035.
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Africa and Nigeria in particular are blessed with abundance of sunshine throughout the year. Unfortunately, the region is associated with high temperature values which is a major factor militating against the efficiency of photovoltaic systems in use today. Since for each degree rise in temperature, about 0.50% efficiency is lost, then this implies that once a photovoltaic panel enters the Nigeria atmosphere about 5%-10% of its maximum power is lost. To tackle this problem, a cooling mechanism has to be incorporated into photovoltaic system design for adequate cooling and temperature monitoring. A smart automatic cooling mechanism and a smart photovoltaic MPPT tester were deployed in the study. In situ measurements were obtained in outdoor real-time conditions. The results reveal better performances for voltage, current, power and efficiency for the photovoltaic module whose temperatures was regulated not to exceed the threshold temperature of 350C. This study shows and suggest that lowering the panel temperature of photovoltaics through the application of cooling mechanism should be considered in the design of photovoltaic systems.
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Arnaoutakis, Georgios E., and Dimitris A. Katsaprakakis. "Energy Yield of Spectral Splitting Concentrated Solar Power Photovoltaic Systems." Energies 17, no. 3 (January 23, 2024): 556. http://dx.doi.org/10.3390/en17030556.
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Combined concentrated solar power with photovoltaics can provide electricity and heat at the same system while maximizing the power output with reduced losses. Spectral splitting is required in such systems to separate the infrared part of the solar spectrum towards the thermal system, while the visible and near-infrared radiation can be converted by the photovoltaic solar cell. The performance of concentrated solar power plants comprising reflective beam splitters for combined generation of electricity and heat is presented in this work. A 50 MW power plant is considered in this work as a case of study in Southern Crete, Greece. The solar power plant consists of parabolic trough collectors and utilizes beam splitters with varying reflectivity. The dynamic performance of the power plant is modeled, and the annual energy yield can be calculated. Up to 350 MWt of thermal power can be delivered to the photovoltaic system utilizing a 50% reflecting splitter. The penalty to the high-reflectivity system is limited to 16.9% and the annual energy yield is calculated as 53.32 GWh. During summer months, a higher energy yield by up to 84.8 MWh/month is produced at 80% reflectivity compared to 90% as a result of the number of parabolic troughs. The reported energy yields with reflectivity by dynamic modeling can highlight discrete points for improvement of the performance in concentrated solar power photovoltaics.
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Consoli, Alfio, Mario Cacciato, and Vittorio Crisafulli. "Power Converters For Photovoltaic Generation Systems In Smart Grid Applications." Eletrônica de Potência 14, no. 4 (November 1, 2009): 251–57. http://dx.doi.org/10.18618/rep.2009.4.251257.
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Niu, Yitong, Ahmed Mohammed Merza, Suhad Ibraheem Kadhem, Jamal Fadhil Tawfeq, Poh Soon JosephNg, and Hassan Muwafaq Gheni. "Evaluation of wind-solar hybrid power generation system based on Monte Carlo method." International Journal of Electrical and Computer Engineering (IJECE) 13, no. 4 (August 1, 2023): 4401. http://dx.doi.org/10.11591/ijece.v13i4.pp4401-4411.
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<span lang="EN-US">The application of wind-photovoltaic complementary power generation systems is becoming more and more widespread, but its intermittent and fluctuating characteristics may have a certain impact on the system's reliability. To better evaluate the reliability of stand-alone power generation systems with wind and photovoltaic generators, a reliability assessment model for stand-alone power generation systems with wind and photovoltaic generators was developed based on the analysis of the impact of wind and photovoltaic generator outages and derating on reliability. A sequential Monte Carlo method was used to evaluate the impact of the wind turbine, photovoltaic (PV) turbine, wind/photovoltaic complementary system, the randomness of wind turbine/photovoltaic outage status and penetration rate on the reliability of Independent photovoltaic power generation system (IPPS) under the reliability test system (RBTS). The results show that this reliability assessment method can provide some reference for planning the actual IPP system with wind and complementary solar systems.</span>
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Nema Hawas, Majli, Ihsan Jabbar Hasan, and Mohannad Jabbar Mnati. "Simulation and analysis of the distributed photovoltaic generation systems based on DIgSILENT power factory." Indonesian Journal of Electrical Engineering and Computer Science 28, no. 3 (October 7, 2022): 1227. http://dx.doi.org/10.11591/ijeecs.v28.i3.pp1227-1238.
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The voltage <span>stability of the system has become an important component for the steady and dependable functioning of the power system as a result of multiple blackouts around the world (particularly in Iraq). Distributed photovoltaic systems are a subset of decentralized power generating systems that generate electricity using renewable energy sources like solar cells, wind turbines, and water power plants. In order to size a solar-grid-connected home system properly and to confirm the impact of photovoltaics on the system, this article will also do a steady-state analysis. The heating and cooling loads were taken into account when evaluating the residential load profile. With the help of predicted energy use, the photovoltaic (PV) system was sized. The solar system's power output was calculated, and the key variables affecting system performance were examined. The DigSilent power factory 15.2 was used to simulate all of the investigations. This article achieves better system stability outcomes.</span>
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Wang, Ziming. "Key technologies in photovoltaic power generation systems." Journal of Physics: Conference Series 2786, no. 1 (June 1, 2024): 012010. http://dx.doi.org/10.1088/1742-6596/2786/1/012010.
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Abstract With the increasing concern for environmental issues and the rising demand for renewable energy, photovoltaic (PV) power generation has gradually stepped into the public view. This paper provides a comprehensive literature review of key technologies in photovoltaic power generation systems, aiming to summarize and analyze the current state of research, trends and key issues in PV power generation systems. Inverters play a crucial role in PV power generation systems. The role of the inverter is not only to convert electrical energy, but also to ensure that the system can realize the most efficient energy conversion under different light conditions through advanced technologies such as maximum power point tracking. This paper provides a side-by-side comparison of several common tracking techniques from the maximum power point, including Perturb and Observe, Incremental Conductance and Fuzzy Logic Control. At last, this paper discusses future perspectives for photovoltaic power generation technology, including the development of new photovoltaic materials to improve photovoltaic conversion efficiency and cost, as well as the enhancement of the intelligence and integration of photovoltaic power generation systems. These improvements are aimed at promoting photovoltaic power generation technology in the direction of being more efficient, more reliable, more intelligent, and more sustainable.
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Zhang, Jiaying, and Yingfan Zhang. "Forecast of photovoltaic power generation based on DBSCAN." E3S Web of Conferences 236 (2021): 02016. http://dx.doi.org/10.1051/e3sconf/202123602016.
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The power output of the photovoltaic power generation has prominent intermittent fluctuation characteristics. Large-scale photovoltaic power generation access will bring a specific impact on the safe and stable operation of the power grid. With the increase in the proportion of renewable energy sources such as wind power and photovoltaics, the phenomenon of wind abandonment and light abandonment has further increased. The photovoltaic power generation prediction is one of the critical technologies to solve this problem. It is of outstanding academic and application value to research photovoltaic power generation prediction methods and systems. Therefore, accurately carrying out the power forecast of photovoltaic power plants has become a research hot point in recent years. It is favored by scholars at home and abroad. First, this paper builds a simulation model of the photovoltaic cell based on known theoretical knowledge. Then it uses the density clustering algorithm (DBSCAN) in the clustering algorithm and classifies the original data. Finally, according to a series of problems such as the slow modeling speed of photovoltaic short-term power prediction, the bidirectional LSTM photovoltaic power prediction model, and CNN-GRU photovoltaic power prediction model based on clustering algorithm are proposed. After comparing the two models, it is concluded that the bidirectional LSTM prediction model is more accurate.
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Hai-Jun Shen, Hai-Jun Shen, Qing-Hong Wang Hai-Jun Shen, Rui Fan Qing-Hong Wang, and Wei-Min Liu Rui Fan. "Intelligent Optimization Control Method for Photovoltaic Power Generation Systems Under Shadow Occlusion Conditions." 電腦學刊 34, no. 4 (August 2023): 153–61. http://dx.doi.org/10.53106/199115992023083404013.
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<p>In the process of photovoltaic power generation, maximum power point tracking is an important method to improve the efficiency of photovoltaic power generation. Under the actual local shadow condition, the maximum power point of Photovoltaic system fluctuates. For this reason, this paper establishes the mathematical model and output characteristic equation of photovoltaic cells according to the actual application, and then uses the adaptive inertia weight Particle Swarm Optimization algorithm to solve the problem of slow search speed and low accuracy in the process of maximum power point tracking. After optimization, the method proposed in this paper can significantly improve the tracking effect efficiency, and the optimization results in real operation scenarios can improve the photovoltaic cell power generation efficiency by 21.3%, which proves the effectiveness of the algorithm.</p> <p> </p>
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Inomata, Ryosuke, Takashi Akimoto, Daisuke Hatori, Shigeaki Takanishi, Shunsuke Nakamura, Yosuke Mochizuki, Nana Araki, and Daiki Yamashina. "Study on environment conscious technologies in a super tall building: Evaluation of PV performance considering aerological climate." E3S Web of Conferences 111 (2019): 03058. http://dx.doi.org/10.1051/e3sconf/201911103058.
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In recent years, buildings have tended to be taller, and their energy potential is expected be used effectively . Photovoltaics is considered one of technologies affected by air temperature, outside air velocity, and solar radiation from the aerological climate of supertall buildings with a height of 390 m. The energy potential of the “height” of photovoltaic power generation systems is affected by two factors: aerological climate and shadows cast by surrounding buildings. Taking these effects into account, the predicted annual power generation amount was calculated. At 390 m above ground, it was confirmed that the power generation amount was greater than that on the ground, when considering the effectiveness of photovoltaic systems. Then, we calculated the predicted annual power generation amount on each wall and roof surface of a tall building with a height of 390 m above the ground. By evaluating the energy-saving effect of adopting photovoltaic systems, we evaluated the photovoltaic system using the wall surface from the viewpoint of the primary energy reduction and primary energy consumption of the building.
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Uno, Masatoshi. "Development of a modular compensator that achieves improvement in the amount of power generation of a solar cell system by equalizing electrical characteristics." Impact 2020, no. 4 (October 13, 2020): 60–61. http://dx.doi.org/10.21820/23987073.2020.4.60.
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Interest in photovoltaic systems, which are a renewable energy technology that transforms the energy from the Sun into electricity using photovoltaics, or solar panels, is on the rise. With non-renewable energy sources such as coal and fuel recognised as finite, the importance of improving renewable sources, such as solar energy, is more and more pressing. Unfortunately, there are still many challenges and drawbacks associated with photovoltaic systems, which is why research in this area is of the utmost importance. Dr Masatoshi Uno is an Associate Professor of Electrical Engineering in the Department of Electrical and Electronics Engineering at Ibaraki University, Japan. He has a multitude of research interests spanning switching power converters, cell equalisers, life evaluation for supercapacitors and lithium-ion batteries and the development of fuel cell systems. Dr Masatoshi Uno's work seeks to enable photovoltaic systems to deliver impressive power at low cost and complexity and overcome the challenges associated with traditional photovoltaic systems.
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Reddy, Butukuri Koti, Nimay Chandra Giri, Pradeep Kumar Yemula, Ephraim Bonah Agyekum, and Yogendra Arya. "Optimal Operation of Cogeneration Power Plant Integrated with Solar Photovoltaics Using DLS-WMA and ANN." International Journal of Energy Research 2024 (April 24, 2024): 1–16. http://dx.doi.org/10.1155/2024/5562804.
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Focusing on mitigating global challenges arising from hydrocarbon-based sources, the integration of cogeneration power plants with solar photovoltaics offers a viable solution. The intermittent nature of renewable resources presents a challenge to the consistent performance of cogeneration systems. To address these issues, this work introduces a novel framework for integrating cogeneration power plants (CGPPs) with solar photovoltaic systems. The key innovation of this research lies in its dual-algorithm approach that seamlessly blends cogeneration power plants with solar photovoltaic. This study proposed an integrated approach, employing the Derivative Log Sigmoid-Woodpecker Mating Algorithm (DLS-WMA) and Optimized Artificial Neural Networks (O-ANN), to combine cogeneration power plants with solar photovoltaics in industrial distribution systems. The methodology is aimed at achieving a cost-effective, efficient system design, enhancing the efficiency of cogeneration power plants, and introducing energy storage batteries for uninterrupted power generation under diverse atmospheric conditions and loads. Additionally, the proposed system includes rechargeable batteries for energy storage to support critical services when the solar plant is offline and the CGPP cannot meet the power demand. The industrial system’s photovoltaic component is tuned using the DLS-WMA for cost minimization and O-ANN for solar irradiance prediction, ensuring continuous power flow by optimizing both the photovoltaic system and the cogeneration power plant (CGPP) system. Real-time datasets are used to compare the results obtained by this new approach with those of the previous state-of-the-art algorithms. The error with O-ANN prediction is 1.2%, compared to 4.1% with the existing WMA-ANN technique, while the cost-benefit with DLS-WMA shows a 9% improvement over the WMA-ANN technique. The experimental outcomes demonstrate the efficiency of this new approach. Collaboration with industry stakeholders and policymakers is crucial for the large-scale deployment of this system, facilitating the adoption of sustainable energy practices in industrial distribution systems.
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Farghally, Hanaa M., Emad A. Sweelem, Mohamed I. Abu El-Sebah, and Fathy A. Syam. "Agricultural Grid Connected Photovoltaic System Design and Simulation in Egypt by using PVSYST Software." WSEAS TRANSACTIONS ON CIRCUITS AND SYSTEMS 21 (December 31, 2022): 306–15. http://dx.doi.org/10.37394/23201.2022.21.33.
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Agricultural Photovoltaic Systems are a key technology to achieve sustainable development goals by reducing competition between land for food and electricity. In addition, Agricultural Photovoltaic Systems are at the heart of the link between power generation, crop production and irrigation water conservation. The main ecophysiological constraint on crop production under photovoltaics is the reduction of light. It is difficult to recommend shade tolerance for some plant varieties due to insufficient information on shading conditions for most plants. The use of shading panels (photovoltaic panels) requires more crop-specific research to determine the optimal percentage of panels and their placement that will not reduce agricultural yields. Crop yield variation versus field shading and availability to maximize the system require extensive research. This study aims to develop a standard procedure for designing an agricultural grid-connected photovoltaic power generation system for solar power generation in an agricultural area in Bahteem, Egypt. The technical and annual performance of the grid-connected PV system was simulated using PV Syst software. The paper started with a pre-feasibility study of a grid-connected photovoltaic system using PV Syst. Software with an extensive database of meteorological data, including global daily horizontal solar irradiance, and a database of various renewable energy system components from different manufacturers. In this work, a comprehensive literature review of agricultural solar photovoltaic systems is conducted, with a particular focus on grid-connected systems, followed by a design procedure for grid-connected solar photovoltaic systems. The planned photovoltaic system will generate a total of 400 KWp of electricity. This generated electricity can drive down electricity prices by exporting excess electricity to the national grid. In addition, solar power systems are fuel-efficient and have a low environmental impact.
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Farghally, Hanaa M., Emad A. Sweelem, Mohamed I. Abu El-sebah, and Fathy A. Syam. "Agricultural Grid Connected Photovoltaic System Design and Simulation in Egypt by using PVSYST Software." International Journal of Applied Sciences & Development 2 (April 10, 2023): 12–20. http://dx.doi.org/10.37394/232029.2023.2.2.
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Agricultural Photovoltaic Systems are a key technology to achieve sustainable development goals by reducing competition between land for food and electricity. In addition, Agricultural Photovoltaic Systems are at the heart of the link between power generation, crop production and irrigation water conservation. The main ecophysiological constraint on crop production under photovoltaics is the reduction of light. It is difficult to recommend shade tolerance for some plant varieties due to insufficient information on shading conditions for most plants. The use of shading panels (photovoltaic panels) requires more crop-specific research to determine the optimal percentage of panels and their placement that will not reduce agricultural yields. Crop yield variation versus field shading and availability to maximize the system require extensive research. This study aims to develop a standard procedure for designing an agricultural grid-connected photovoltaic power generation system for solar power generation in an agricultural area in Bahteem, Egypt. The technical and annual performance of the grid-connected PV system was simulated using PV Syst software. The paper started with a pre-feasibility study of a grid-connected photovoltaic system using PV Syst. Software with an extensive database of meteorological data, including global daily horizontal solar irradiance, and a database of various renewable energy system components from different manufacturers. In this work, a comprehensive literature review of agricultural solar photovoltaic systems is conducted, with a particular focus on grid-connected systems, followed by a design procedure for grid-connected solar photovoltaic systems. The planned photovoltaic system will generate a total of 400 KWp of electricity. This generated electricity can drive down electricity prices by exporting excess electricity to the national grid. In addition, solar power systems are fuel-efficient and have a low environmental impact.
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Qiao, Dao E., and Xiao Li Xu. "Power Optimizing of Solar Photovoltaic Systems." Advanced Materials Research 466-467 (February 2012): 272–76. http://dx.doi.org/10.4028/www.scientific.net/amr.466-467.272.
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Efficient energy yield is a major concern in solar photovoltaic (PV) systems. This paper describes a distributed control system to optimize the power output of the PV systems. The PV systems contain many PV modules. And every PV module has a monitoring and control network node. The communication data are successfully transmitted using a low-cost ZigBee wireless network. The field conditions are monitored by voltage, current, irradiance, and temperature sensors. The power operating point tracking is implemented at the PV module level. The reference voltage is calculated based on a neural network model, which is used to identify maximum power point. And the output voltage is regulated by a digital controller in the integrated converter according to the reference voltage. Experiments show that the power output can be greatly increased with this distributed control system under many shadow conditions.
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Djafour, A., M. S. Aida, and B. Azoui. "Photovoltaic Assisted Fuel Cell Power Systems." Energy Procedia 50 (2014): 306–13. http://dx.doi.org/10.1016/j.egypro.2014.06.037.
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Barreto, M., A. Guananga, A. Barragán, E. Zalamea, and X. Serrano. "Power Quality Analysis of Photovoltaic Systems." Renewable Energy and Power Quality Journal 21, no. 1 (July 2023): 689–94. http://dx.doi.org/10.24084/repqj21.451.
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This research analyses the quality of the electricity produced on photovoltaic systems connected to the power grid in the city of Cuenca (Ecuador). For this, an overview of the literature and the Ecuadorian, American, and European regulations concerning power quality was carried out to determine the regulatory parameters and admissible limits. From the quality records, it is concluded that, in general, there are no power quality problems, except for momentary current imbalances. In one of the cases, violations of voltage parameters, voltage unbalance, current unbalance and flicker were found. The recommended parameters to be included in the Ecuadorian quality standards are individual harmonic distortion and frequency have been registered.
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CHAHMI, Abdelghani. "Study of photovoltaic systems with differences connecting configuration topologies for applications in renewable energy systems." International Journal of Energetica 4, no. 1 (June 30, 2019): 28. http://dx.doi.org/10.47238/ijeca.v4i1.83.
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This paper focuses in the optimization of the efficiency of photovoltaic power conversion systems; we present a new alternative for improving both the optimization of the efficiency of photovoltaic power conversion chain. In this way, we present to the valuation problem of photovoltaic by new coupling systems between photovoltaic generators and their loads and performance of photovoltaic (PV) systems and the efficiency of the energy conversion by using different configuration of power converters. Different type’s improvements have been proposed of different architecture in order to choose the correct PV architecture for each PV installation on the efficiency improvement in all power conversion level stages between PV cells and loads. In this context, this work presents the study and adaptive simulation of photovoltaic systems with micro inverters configurations for applications of renewable energy. We performed comparative between a central and distribution connection of converter via an adaptation floor with Maximum Power Point Tracker (MPPT) control. For this reason, it is important to know different types of architecture and different configuration of power converters in order to choose the correct PV architecture for each PV installation. Simulation results are used to demonstrate the proposed topologies to provide improvement in efficiency over existing traditional PV systems.
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Yang, Shu-Xia, Yang Zhang, and Xiao-Yu Cheng. "Economic modeling of distributed photovoltaic penetration considering subsidies and countywide promotion policy: An empirical study in Beijing." Journal of Renewable and Sustainable Energy 14, no. 5 (September 2022): 055301. http://dx.doi.org/10.1063/5.0102574.
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Distributed photovoltaic power generation will not only help to achieve the strategic targets of peaking carbon emissions and carbon neutrality but also cause a series of impacts on the power grid at the same time. Forecasting the long-term development of regionally distributed photovoltaics can provide a reference for power grid planning and stable operation. In this paper, considering the effect of factors such as subsidies and countywide promotion policy of photovoltaics, a forecasting model for the development tendency of regionally distributed photovoltaics based on system dynamics is established. Then, taking Beijing as an example, an empirical analysis is carried out, and the effect of the proportion of self-consumption and the time when the subsidy is adjusted on distributed photovoltaic penetration is explored through sensitivity analysis. The simulation results show that the installed capacity achieved by the countywide promotion policy will become the main source of the installed capacity growth of distributed photovoltaics in Beijing after 2024. To continuously boost distributed photovoltaic penetration, relevant policymakers should consider the appropriate time when the subsidy is adjusted according to the installation cost of photovoltaic systems.
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Mr. Amol Barve, Mrs Ruchi Singh Chauhan. "MPSO-MPPT based Single Phase Grid PV System for Power Enhancement." SMART MOVES JOURNAL IJOSCIENCE 4, no. 4 (April 20, 2018): 12. http://dx.doi.org/10.24113/ijoscience.v4i4.129.
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The solar power became a challenging area among other renewable energy sources (RESs) since the photovoltaic (PV) systems have the benefits of not inflicting pollution, having low maintenance, and durable operation life. Besides these benefits, a PV system has many drawbacks like significantly higher installation cost comparing some other RESs, and limited potency ranges between 9–18%. The feasibility analyses have a good role so as to work out the foremost appropriate plant site before installation. On the other hand, the operating analyses and enhancements supported maximum power point tracking (MPPT) are quite necessary to extend the harvested total energy. To maximize the performance of solar photovoltaics (PV) under dynamic climatic conditions, MPPT (Maximum Power Point Tracking) controllers are integrated into photovoltaic systems. This research presents a modified PSO algorithm based on the method of tracking the maximum global power point used for photovoltaic systems with variable co-efficient. The modified PSO (MPSO) algorithm is able to trace the maximum global power point faster. This improves the effectiveness of follow-up. Simulation results show that MPSO coordination control methods have better tracking accuracy as compared to P&O as well as PSO MPPT Technique. This also improves the energy efficiency of the photovoltaic system.
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Cabral Cavalcanti, Marcelo, Kleber Carneiro de Oliveira, Gustavo Medeiros de Souza Azevedo, and Francisco de Assis dos Santos Neves. "Comparative Study Of Maximum Power Point Tracking Techniques For Photovoltaic Systems." Eletrônica de Potência 12, no. 2 (July 1, 2007): 163–71. http://dx.doi.org/10.18618/rep.2007.2.163171.
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Deng, Jun, Nan Xia, Jungang Yin, Jiliang Jin, Shutao Peng, and Tong Wang. "Small-Signal Modeling and Parameter Optimization Design for Photovoltaic Virtual Synchronous Generator." Energies 13, no. 2 (January 13, 2020): 398. http://dx.doi.org/10.3390/en13020398.
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With the continuous proliferation of renewable energy generation, distributed photovoltaic inverters operating at a maximum power point reduce the inertia of power systems, degrading system frequency stability and potentially causing severe oscillations in systems after being disturbed. The virtual synchronous generator (VSG) control method, which causes photovoltaic inverters to possess inertia and damping, now plays an important role in the field of distributed generation. However, while introducing the advantages of synchronous machines, problems with oscillations are also introduced and the stochastic fluctuation characteristic of photovoltaics results in the stochastic drifting of the operating point. This paper presents an adaptive controller parameter design method for a photovoltaic-VSG (PV-VSG) integrated power system. Firstly, a small-signal model of the PV-VSG is built and a state space model is deduced. Then, the small-signal stability and low frequency oscillation characteristics of the photovoltaic power generation system are analyzed. Finally, considering the limitations of system oscillations and the stochastic drifting of the operating point, a global optimization design method for controller parameters used to improve system stability is proposed. The time domain simulation shows that an optimized PV-VSG could provide sufficient damping in the case of photovoltaic power output changes across a wider range.
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RUBAN, Nikolay, Vladimir RUDNIK, Igor RAZZHIVIN, and Anton KIEVEC. "A Hybrid Model of Photovoltaic Power Stations for Model Ling Tasks of Large Power Systems." Electrotehnica, Electronica, Automatica 69, no. 4 (November 15, 2021): 43–49. http://dx.doi.org/10.46904/eea.21.69.4.1108005.
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Renewable energy sources are being actively penetrated in the global energy sector, with the main growth being achieved by new photovoltaic power stations. At the same time, the influence of photovoltaic power stations on the operation of power systems is known. This is primarily due to the inconstancy of the weather, which leads to a decrease in the output of each specific photovoltaic panel and power station as a whole. To study the effect of partial shading of photovoltaic panels on the parameters of its operation, various models of the current-voltage characteristics of photovoltaic cells are used in the world, while detailed two-diode models show the best results. The use of detailed models allows to get complete information about the processes in a variety of photovoltaic panels of a power station, as well as other elements of it, such as a voltage converter. This makes it possible to assess the impact of these processes on the external power system. However, for detailed modelling of large photovoltaic power stations as part of power systems, it is necessary to use powerful software and hardware systems. Such systems include the Hybrid real-time power system simulator. This simulator is a multiprocessor installation that provides a solution to the aggregate model of the power system through the use of three approaches to modelling: digital, analogue and physical. The article presents the results of experimental studies of software and hardware tools for modelling a photovoltaic power station, developed on the basis of a hybrid approach to modelling electric power systems.
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MALOUM, Hakima, Boukhalfa BENDAHMANE, Cristian NICHITA, and Mouloud ADLI. "Offshore Wind Energy Integration using Photovoltaic Systems and Batteries as Smoothing Devices." Electrotehnica, Electronica, Automatica 69, no. 2 (May 15, 2021): 13–20. http://dx.doi.org/10.46904/eea.21.69.2.1108002.
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Currently, producing electrical energy is among the major concerns, which will continue to grow in the future. This is due, on the one hand, to the depletion and high conventional energy sources costs. On the other hand, because of the pollution they cause to the environment, hence the need to produce electrical energy from renewable and clean sources, such as wind, photovoltaic and tidal systems. The exploitation of the sea wind by offshore wind turbines is interesting and promising. In this context, this work aims to propose a new approach to hybrid offshore wind/photovoltaic/battery systems energy management. The power produced by the photovoltaic/battery will be used to compensate for the lack of power presented by offshore wind production in relation to the demand of the grid, as offshore wind is taken as a main source in this study. To achieve the set objective, an energy management algorithm is developed and implemented. This algorithm makes it possible to involve photovoltaics in the first place, in a progressive way according to the power deficit presented by the offshore park and the available sunshine. As it also aims to manage the charge and discharge of the battery bench last if the power supplied by the offshore wind farm alone or by offshore wind/photovoltaic does not match the demand. To verify the efficiency of this management algorithm, simulations of the offshore wind/photovoltaic/battery system were carried out under matlab/simpowers. This system is divided into several sub-systems: wind, photovoltaic and battery bank. Each of them is equipped with different specific infrastructure, as well as adequate control systems for proper operation. All subsystems are grouped together at a common connection point, where energy management is carried out prior to connection to the distribution network. The results obtained validated the main approaches of the proposed method allowing a reliable stabilization of the power level to the common connection point at the reference power that must be injected into the distribution network.
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Kang, Liyan, Ying Shang, Xinran Liu, and Yuewei Qin. "Research on High-Frequency Data Acquisition Technology in Distributed Photovoltaic Station Areas." Journal of Physics: Conference Series 2474, no. 1 (April 1, 2023): 012039. http://dx.doi.org/10.1088/1742-6596/2474/1/012039.
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Abstract With the large-scale development of low-voltage distributed photovoltaic in power systems, the safe and effective operation of the power grid has been put forward. The analysis of the operation of distributed photovoltaics depends on the development of high-frequency data acquisition technology. This paper mainly aims at the problem of high-frequency data acquisition for distributed photovoltaic users and proposes a solution to achieve high-frequency data acquisition using high-speed power line carriers and dual-mode communication technology. The high-speed power line carrier is used to achieve minute-level data acquisition. The dual-mode communication technology further improves communication reliability. This paper provides theoretical support and construction experience for data acquisition and analysis of distributed photovoltaic users.
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Huang, Guozhen, Yichang Tang, Xi Chen, Mingsheng Chen, and Yanlin Jiang. "A Comprehensive Review of Floating Solar Plants and Potentials for Offshore Applications." Journal of Marine Science and Engineering 11, no. 11 (October 28, 2023): 2064. http://dx.doi.org/10.3390/jmse11112064.
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Fossil fuel consumption has progressively increased alongside global population growth, representing the predominant energy consumption pattern for humanity. Unfortunately, this persistent reliance on fossil fuels has resulted in a substantial surge in pollution emissions, exerting a detrimental influence on the delicate ecological balance. Therefore, it is imperative to find new renewable energy sources to replace fossil fuels. Solar energy is a clean energy source and has become the most preferred option for human day-to-day needs. Since the construction of the world’s first floating photovoltaic power station, humanity has been continuously advancing the technology of power generation by floating photovoltaics. This review comprehensively elucidates the progression of offshore photovoltaic technology and illustrates the composition of the floating photovoltaic system. Each section meticulously contrasts the advantages and drawbacks of various photovoltaic systems. In addition, an in-depth analysis of the offshore photovoltaic application potentials is conducted based on fundamental theories, thereby offering valuable insights for future research. Finally, an encompassing summary of the potential challenges associated with deep-sea floating photovoltaic systems is presented.
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Maya Utami Dewi, Sulartopo Sulartopo, and Ahmad Solechan. "REDUCING THE SHOOTING OF HYBRID PHOTOVOLTAIC PLANTS ON SCR AND LI-GRIDS." Journal of Technology Informatics and Engineering 1, no. 3 (December 22, 2022): 18–32. http://dx.doi.org/10.51903/jtie.v1i3.147.
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The main threat by comparable methods lately is the temporary downtime for accurate-current network dispatch errors. Throughout a temporary outage, Power Electronic based power sources stop operating, giving rise to possible security defiance towards the network, in this research, the potentially viable choice to serve continuous work temporarily for the scheme is provided with consideration of identifying upgrades to existing photovoltaic generators (photovoltaic generators discrete) and an upgrade in the separate establishment of existing “photovoltaic” and “Energy Storage Systems” discrete hybrid photovoltaics. This study aims to find a series of power sources with Power Electronic interfaces that are connected to a low “Short Circuit Ratio” network and “Low Inertia” grid to operate without a moment's stoppage.
The proposed method was proved by adopting PSS/e on a method where power electronics-occupying assets produce the majority of energy. Inverter models along with temporary shutdown through an equal 3-period fault were advanced in PSS/e. together with increasing infiltration of “Power Electronics” established multitude and resources, progressive completion is needed to improve network stability in low a) areas and low inertia networks. The requirements for progressive solvent arose out of the steady variation in the paradigm of the power grid from the dominant systems of traditional electric machines to the high penetration of systems based on power electronics. A technical comparison was made between distinct categories of resolution (divergent photovoltaic and divergent hybrid photovoltaic) to operate a photovoltaic generator's weak “Short Circuit Ratios” also “Low Inertia” grating (grid).
The results of this study indicate that the proposed solution is calculated nether disparate running term and error class adopting the Electromagnetic Transient model. Moreover, to analyze distinct solvents, a specialized proportion is served on discrete hybrid photovoltaic generators. The proposed solution is the development of conventional increase as well as contemporary condensers, deter capacitors, and reducers to advanced photovoltaic generators and hybrid photovoltaic generators to provide voltage support to ensure continuous working through lopsided dispatch streak disturbances, and another solution is photovoltaic-energy generation. Integrated storage system connected to High Voltage dc and high voltage ac transmission network.
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Pinheiro, Elisângela, and Felipe Martins Muller. "Scientific Mapping of Machine Learning Methods in Predicting Power Output of Solar Photovoltaic Power Systems." Revista de Gestão Social e Ambiental 18, no. 4 (May 23, 2024): e07080. http://dx.doi.org/10.24857/rgsa.v18n4-139.
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Objective: This study aimed to conduct a scientometric mapping of the scientific literature on prediction models in photovoltaic solar energy generation, with a special focus on grid-connected photovoltaic systems (GCPV), aiming to provide important insights for researchers, policymakers, and professionals interested in advancing the integration of photovoltaic solar energy into the current energy distribution system. Theoretical Framework: In this section, the main concepts and theories underpinning the research are presented, focusing on prediction models in photovoltaic solar energy generation, as well as grid-connected photovoltaic systems (GCPV). Method: The methodology adopted comprised a bibliometric approach, analyzing publications indexed in the Scopus and Web of Science databases over the last decade, using the Biblioshiny software from RStudio. Results and Discussion: The results revealed a significant growth in academic production, identifying key authors, leading research countries, and influential journals in the field. Central and emerging themes were also mapped, along with research gaps and opportunities in the field of photovoltaic solar energy. Research Implications: The practical and theoretical implications of this research include insights into how the results may influence the integration of photovoltaic solar energy into the energy distribution system, impacting areas such as scientific research, policy development, and professional practice. Originality/Value: This study contributes to the literature by offering a comprehensive mapping of research on prediction models in photovoltaic solar energy generation, highlighting gaps and opportunities to advance the field, as well as providing valuable insights for various stakeholders interested in this area.
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Mantilla Villalobos, María Alejandra, Johann Farith Petit Suárez, and Gabriel Ordóñez Plata. "Direct power control in grid-tied photovoltaic systems." Revista Facultad de Ingeniería Universidad de Antioquia, no. 72 (April 7, 2014): 47–60. http://dx.doi.org/10.17533/udea.redin.15041.
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This paper presents an analysis about the use of the direct power control in grid-tied photovoltaic systems. This technique is used to directly regulate the injection of instantaneous active and reactive power to the three-phase distribution network, avoiding current control loops used by traditional control strategies. The direct power control performance in photovoltaic systems is evaluated by PSIM simulation, which shows its good operation for this kind of applications. Finally, a comparative analysis is made between this controller and a traditional technique used in photovoltaic systems called voltage oriented control.
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B Mohan Rao. "Power Flow Analysis Using Fuzzy for Single Phase Transformer Less PV System Connected with a Nine-Level Converter." Journal of Electrical Systems 20, no. 7s (May 4, 2024): 1277–89. http://dx.doi.org/10.52783/jes.3698.
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Power electronics technology advancements and growing environmental concerns worldwide have made photovoltaic (PV) systems more visible in distributed generation systems. Photovoltaics, or solar PV, is an important component of solar energy for generating electricity. Grid-connected inverters must be able to regulate the amount of power they inject into the grid, track maximum power points, be highly efficient, and inject currents into the grid with minimal harmonic distortion. Two step-down converters were used to construct an inverter without a single-phase transformer. This study investigates two multi-sequence inverter types that use different voltages and are based on single-phase grid-connected photovoltaic (PV) technology. A new nine-level grid-connected transformer-less photovoltaic converter was proposed in this study. MATLAB was used to construct the complicated FFT simulation using fuzzy logic controls. Analyzing efficiency through simulation in order to enhance efficiency. This work aims to replace PI controllers with fuzzy controlled systems so that single-stage operation can be improved with reduced switches in an economic manner. An improvement of 10% over the existing system is achieved by implementing fuzzy computing.
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Vourdoubas, John. "Integration of Floating Solar Photovoltaic Systems with Hydropower Plants in Greece." European Journal of Engineering and Technology Research 8, no. 2 (March 14, 2023): 6–12. http://dx.doi.org/10.24018/ejeng.2023.8.2.3010.
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Floating solar photovoltaics in water bodies is a novel clean energy technology which has been developed rapidly during the last decade. The current work investigates the possibility and the potential of installing floating photovoltaic systems in the existing hydropower plants in Greece. Studies related with the use of floating photovoltaics in water reservoirs in Greece are limited so far. The characteristics of the existing 24 hydropower plants in Greece have been used for the estimation of the solar photovoltaic systems which can be installed in their water reservoirs. It has been found that the nominal power of these solar energy systems which can be installed in their water reservoirs, covering 10% of their water surface, is at 3,861 MWp while the annual generated electricity at 5,212.35 GWh corresponding at 10.04 % of the annual electricity demand in the country. The capacity factor of the integrated solar and hydro power systems is increased by more than 20%. The research indicates that the existing hydropower plants in Greece can host, in their water dams, floating photovoltaic systems generating significant amounts of green electricity while they also result in many environmental benefits. These novel solar energy systems can contribute, together with other benign energy technologies, in the achievement of the national and EU target for net zero carbon emissions by 2050.
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Maiwald, Jens, and Tino Schütte. "Prosumer Impact on Cellular Power Systems." Energies 17, no. 9 (May 3, 2024): 2195. http://dx.doi.org/10.3390/en17092195.
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This paper explores the impact of an increasing number of prosumers in electricity supply systems and investigates how market mechanisms can mitigate the negative effects. The Regional Energy Market Model simulates a supply system based on cellular structures, employing agent-based modeling to capture individual behaviors and simulate real market dynamics. This study includes various supply scenarios, such as a solely photovoltaic scenario and a technically diversified scenario with biogas-fueled combined heat and power units. For each scenario, fixed and flexible pricing scenarios are simulated to analyze their effects. The findings reveal that systems heavily reliant on photovoltaics experience negative effects at certain points due to seasonal limitations, while technically diversified supply scenarios demonstrate fewer drawbacks. Flexible pricing systems stimulate demand in a manner beneficial to the system, creating regional added value, and contributing to the balance between generation and consumption, depending on the supply scenario. However, the study underscores that economic incentives alone are insufficient for balancing generation and consumption. The results highlight the importance of exploring opportunities through the interplay of economic incentive mechanisms and technical possibilities.
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Erol, Halil, and Mahmut Uçman. "Power optimization in partially shaded photovoltaic systems." Tehnički glasnik 12, no. 1 (March 27, 2018): 34–38. http://dx.doi.org/10.31803/tg-20180201165044.
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The Power-Voltage characteristic of a photovoltaic (PV) array exhibits non-linear behaviour when exposed to uniform solar irradiance. Maximum Power Point (MPP) tracking is challenging due to the varying climatic conditions in a solar PV system. Moreover, the tracking algorithm becomes more complicated due to the presence of multiple peaks in the power voltage characteristics under the condition of partial shading. This research is devoted to the Stochastic Beam Search (SBS) based algorithm and Stochastic Hill Climbing (SHC) for a maximum power point tracking (MPPT) at a partial shading condition in the PV system. To give a partial shading effect over the entire array of a PV system, a mast is placed in front of the modules. The modules in the array are connected in such a way that one does not need to rewire the electrical connection during the rearrangement of modules. It is validated that the power generation performance of an array under a moving shading condition is increased. Furthermore, it is observed that the SHC method outperforms the SBS method in the MMP tracking.
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Cercel, George, Cosmin Tigănaşu, and Ciprian Nemeş. "Photovoltaic Systems Maximum Power Point Tracking Algorithms." Bulletin of the Polytechnic Institute of Iași. Electrical Engineering, Power Engineering, Electronics Section 67, no. 2 (June 1, 2021): 19–29. http://dx.doi.org/10.2478/bipie-2021-0008.
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Abstract The power delivered by a photovoltaic cell generator depends on the operating point at which this works. In order to maximize the energy supplied by the PV system, the generator should be adapted to the load so that the operating point will always correspond to the maximum power point. Usually, when a PV module is connected directly to a load, its operating point is rarely at the maximum power point. The operating principle of the maximum power point tracking is to place a converter between the load and the PV array, to adjust the output voltage and the current of the PV array so that the maximum available power is extracted. In most cases the optimal algorithm is chosen according to several criteria, such as: implementation complexity (autonomy of the systems, connected to the network), the type and number of sensors needed, the ability of the algorithm to detect local maximum points, cost, response time, type of implementation (analog, digital, mixed).
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KATO, Kazuhiko. "Safety Issues on Photovoltaic Power Generation Systems." Journal of The Institute of Electrical Engineers of Japan 134, no. 10 (2014): 672–76. http://dx.doi.org/10.1541/ieejjournal.134.672.
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Frydrychowicz-Jastrzębska, Grażyna. "Maximum power point tracking in photovoltaic systems." ITM Web of Conferences 28 (2019): 01021. http://dx.doi.org/10.1051/itmconf/20192801021.
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The subject of the analysis was the optimisation of interoperation between the photovoltaic battery (PV) and DC motor, which drives a fan, with respect to the maximum efficiency of conversion of the electric energy into mechanical energy. Based on the block diagram, a mathematical model of this circuit was developed to ensure the mutual matching between the Maximum Power Point (MPP) of the battery and the receiver operation point. A computer simulation of the battery characteristics was conducted taking into account the changing MPP location on the characteristic vs. changes in solar radiation and temperature. The issue was considered for the optimal motor excitation coefficient, both changing and averaged in time. The energy conversion efficiency was determined for selected PV modules, as well as time.
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Horigome, Takashi. "V. Future Perspective of Photovoltaic Power Systems." IEEJ Transactions on Electronics, Information and Systems 115, no. 1 (1995): 63–68. http://dx.doi.org/10.1541/ieejeiss1987.115.1_63.
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Hwang, Taeyon, Jeong Tai Kim, and Yugun Chung. "Power performance of photovoltaic-integrated lightshelf systems." Indoor and Built Environment 23, no. 1 (February 2014): 180–88. http://dx.doi.org/10.1177/1420326x14525062.
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Fedin, Ihor Serhiiovych. "Inverter Topology Selection for Photovoltaic Power Systems." Electronic and Acoustic Engineering 3, no. 2 (June 30, 2020): 48–52. http://dx.doi.org/10.20535/2617-0965.2020.3.2.199028.
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Petrone, G., G. Spagnuolo, R. Teodorescu, M. Veerachary, and M. Vitelli. "Reliability Issues in Photovoltaic Power Processing Systems." IEEE Transactions on Industrial Electronics 55, no. 7 (July 2008): 2569–80. http://dx.doi.org/10.1109/tie.2008.924016.
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Avaritsiotis, J. N., and M. Tsilis. "A power controller for autonomous photovoltaic systems." Solar Cells 22, no. 3 (November 1987): 175–86. http://dx.doi.org/10.1016/0379-6787(87)90042-1.
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Emara, Dina, Mohamed Ezzat, Almoataz Y. Abdelaziz, Karar Mahmoud, Matti Lehtonen, and Mohamed M. F. Darwish. "Novel Control Strategy for Enhancing Microgrid Operation Connected to Photovoltaic Generation and Energy Storage Systems." Electronics 10, no. 11 (May 25, 2021): 1261. http://dx.doi.org/10.3390/electronics10111261.
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Recently, the penetration of energy storage systems and photovoltaics has been significantly expanded worldwide. In this regard, this paper presents the enhanced operation and control of DC microgrid systems, which are based on photovoltaic modules, battery storage systems, and DC load. DC–DC and DC–AC converters are coordinated and controlled to achieve DC voltage stability in the microgrid. To achieve such an ambitious target, the system is widely operated in two different modes: stand-alone and grid-connected modes. The novel control strategy enables maximum power generation from the photovoltaic system across different techniques for operating the microgrid. Six different cases are simulated and analyzed using the MATLAB/Simulink platform while varying irradiance levels and consequently varying photovoltaic generation. The proposed system achieves voltage and power stability at different load demands. It is illustrated that the grid-tied mode of operation regulated by voltage source converter control offers more stability than the islanded mode. In general, the proposed battery converter control introduces a stable operation and regulated DC voltage but with few voltage spikes. The merit of the integrated DC microgrid with batteries is to attain further flexibility and reliability through balancing power demand and generation. The simulation results also show the system can operate properly in normal or abnormal cases, thanks to the proposed control strategy, which can regulate the voltage stability of the DC bus in the microgrid with energy storage systems and photovoltaics.
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Lee, Hyeon-Seok, and Jae-Jung Yun. "Advanced MPPT Algorithm for Distributed Photovoltaic Systems." Energies 12, no. 18 (September 19, 2019): 3576. http://dx.doi.org/10.3390/en12183576.
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The basic and adaptive maximum power point tracking algorithms have been studied for distributed photovoltaic systems to maximize the energy production of a photovoltaic (PV) module. However, the basic maximum power point tracking algorithms using a fixed step size, such as perturb and observe and incremental conductance, suffer from a trade-off between tracking accuracy and tracking speed. Although the adaptive maximum power point tracking algorithms using a variable step size improve the maximum power point tracking efficiency and dynamic response of the basic algorithms, these algorithms still have the oscillations at the maximum power point, because the variable step size is sensitive to external factors. Therefore, this paper proposes an enhanced maximum power point tracking algorithm that can have fast dynamic response, low oscillations, and high maximum power point tracking efficiency. To achieve these advantages, the proposed maximum power point tracking algorithm uses two methods that can apply the optimal step size to each operating range. In the operating range near the maximum power point, a small fixed step size is used to minimize the oscillations at the maximum power point. In contrast, in the operating range far from the maximum power point, a variable step size proportional to the slope of the power-voltage curve of PV module is used to achieve fast tracking speed under dynamic weather conditions. As a result, the proposed algorithm can achieve higher maximum power point tracking efficiency, faster dynamic response, and lower oscillations than the basic and adaptive algorithms. The theoretical analysis and performance of the proposed algorithm were verified by experimental results. In addition, the comparative experimental results of the proposed algorithm with the other maximum power point tracking algorithms show the superiority of the proposed algorithm.
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Damayanti, S., and A. Dinaseviani. "Mapping of Household Photovoltaic Research in Indonesia: A literature review using bibliometric analysis." IOP Conference Series: Earth and Environmental Science 1344, no. 1 (May 1, 2024): 012014. http://dx.doi.org/10.1088/1755-1315/1344/1/012014.
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Abstract This research aims to undertake a bibliometric study on household photovoltaics within the Indonesian context. The objectives include mapping the global trends in publications related to household photovoltaics, mapping the trends within the Indonesian context, analyzing the performance of authors, affiliations, sources, and papers, identifying research hot topics, and determining research themes. This study utilized 122 Scopus-indexed articles. The findings reveal an increasing trend in the number of publications on household photovoltaics both globally and within the Indonesian context. In the Indonesian context, Tarigan, E stands out as the most relevant author, the University of Indonesia emerges as the most relevant affiliation, IOP Conference Series: Earth and Environmental Science leads as the most relevant source, Renewable Energy takes the lead as the most influential source, and article title ’Energy and Economic Losses Caused by Dust on Residential Photovoltaic (PV) Systems Deployed in Different Climate Areas,’ stands out as the most influential. This study identified five themes as hot topics (Photovoltaic Quality and Performance, Economic Analysis of Photovoltaic Systems, Net Metering and Inverter of Rooftop Photovoltaic in Indonesia, Monitoring System of Residential Solar Panels, and Technical and Economics of Solar Power Plants) and four research themes (The Adoption of Household Rooftop Photovoltaics and Influencing Factors, Design and Planning for Rooftop Solar Panel Deployment, Rooftop Photovoltaics Adoption and Renewable Energy Targets, and Economic Analysis of Rooftop Photovoltaic).
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Pekur, D. V., Yu V. Kolomzarov, V. P. Kostilov, V. M. Sorokin, V. I. Kornaga, R. M. Korkishko, and Yu E. Nikolaenko. "Supercapacitor energy storage systems for lighting systems with combined power supply." Технология и конструирование в электронной аппаратуре, no. 1-2 (2021): 3–9. http://dx.doi.org/10.15222/tkea2021.1-2.03.
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Modern continuous lighting systems use powerful high-performance LEDs as light sources and an important task is to begin using alternative renewable energy sources for their power supply (including during the day). The simplest of the renewable energy sources is photovoltaic solar energy converter. However, solar photovoltaic generation depends significantly on many factors - geographical location, time of day, state of the atmosphere, time of year and the like. In addition, photovoltaic generation depends on the weather conditions and cloudiness, which makes it unstable and prone to change drastically (by an order of magnitude) during daylight hours. Therefore, an important element of the power system based on renewable energy sources is the system of accumulation of generated energy. The method of power stabilization using supercapacitors for systems with a significant change in power generation in the electrical power system is analyzed. The paper offers design principles of the power supply systems for powerful LEDs with supercapacitor energy storage devices intended to make the use of energy from sources with variable generation more efficient. The systems with supercapacitor-based drives, which allow to ensure stable operation of the lighting system when the power supply from an alternative source is absent or reduced, provide high safety and reliability, and have a significantly longer service life than battery-based energy storage systems.
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Zhao, Yushuo. "Exploring the Optimizations for Main Harmonic Filtering for Power Systems." MATEC Web of Conferences 386 (2023): 02005. http://dx.doi.org/10.1051/matecconf/202338602005.
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As the global demand for sustainable and environmentally friendly energy supply continues to increase, photovoltaic technology, as an important form of new energy, has received extensive attention. Photovoltaic grid-connected system is currently the most widely used form of photovoltaic power generation system. It converts direct current into alternating current and injects it into the grid to meet the power demand of users. However, the power grid imposes a series of requirements on grid-connected photovoltaic systems, one of which is the handling of harmonic problems. This article will focus on harmonic generation and how to perform THD (Total Harmonic Distortion) mitigation. As the key equipment of photovoltaic grid-connected system, inverter plays an important role in harmonic filtering. With a brief introduction to inverter-related THD. In this paper, by exploring how to optimize harmonic filtering to improve the performance and reliability of grid-connected photovoltaic systems, it is found that the method of suppressing THD by changing the PMW modulation is simple in calculation, easy to implement, and has high output waveform quality. And the method of suppressing THD by changing the equipment can reduce the harmonic quality.