Готові списки джерел за темами / Renewable energy sources in power systems

Добірка наукової літератури з теми "Renewable energy sources in power systems"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Renewable energy sources in power systems"

Sabishchenko, Oleksandr, Rafał Rębilas, Norbert Sczygiol, and Mariusz Urbański. "Ukraine Energy Sector Management Using Hybrid Renewable Energy Systems." Energies 13, no. 7 (April 7, 2020): 1776. http://dx.doi.org/10.3390/en13071776.

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The Ukrainian energy sector is one of the most inflexible energy sectors in the world as a result of the almost complete depreciation of the equipment of the main sources of power supply: nuclear, thermal, and hydropower. In connection with existing problems, there is a need to develop and use new energy-saving technologies based on renewable energy sources. In this proposed research, a regression model of renewable energy growth in the energy sector of Ukraine was developed. The studied literature reveals that the independent use of individual functioning elements of renewable energy sources function as the primary power source that is not an optimal solution for stable energy supply. This study proposes the use of hybrid renewable energy systems, namely a combination of two or more renewable energy sources that will help each other to achieve higher energy efficiency, accelerate the growth of renewable energy in the share of the Ukrainian energy sector and/or improve functioning with battery energy storages. Moreover, the use of hybrid renewable energy systems in Ukraine will reduce the human impact on the environment, realize the potential of local renewable energy resources and also increase the share of electricity generation from renewable energy sources. Therefore, mechanisms for managing state regulation of stimulating the development of hybrid renewable energy systems have been developed.

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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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Krupenev, Dmitry. "Assessment of Power System Adequacy with Renewable Energy Sources and Energy Storage Systems." E3S Web of Conferences 58 (2018): 01012. http://dx.doi.org/10.1051/e3sconf/20185801012.

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The paper deals with the problem of the accounting of renewable energy sources and energy storage systems in assessment of power system adequacy. Development of renewable energy sources and energy storage systems in the present day power systems is one of the main focuses. In power systems of some countries the share of electric energy generated by renewable energy sources is above 50 % in the energy balance. Therefore, the plans on development of the present day power systems must be elaborated with the proper accounting of operation of renewable energy sources and energy storage systems and the sound capacity reserves in terms of these facilities. The paper presents the algorithms for the accounting of renewable energy sources and energy storage systems. The experimental studies performed illustrate feasibility of the suggested algorithms.

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Simões, Marcelo G., Felix A. Farret, Hosna Khajeh, Mahdi Shahparasti, and Hannu Laaksonen. "Future Renewable Energy Communities Based Flexible Power Systems." Applied Sciences 12, no. 1 (December 23, 2021): 121. http://dx.doi.org/10.3390/app12010121.

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This paper presents a new holistic approach that combines solutions for the future power systems. It describes clearly how solar energy is definitely the best outlet for a clean and sustainable planet, either due to their use in both vertical (V) or horizontal (H) forms such as: hydroelectric V&H, wind V&H, thermo-oceanic V&H, water movement sea V&H (tides and waves), solar thermoelectric, PV, and surface geothermal energy. New points of view and simple formulas are suggested to calculate the best characteristic intensity, storage means and frequency for specific places and how to manage the most well-known renewable sources of energy. Future renewables-based power system requires a huge amount of flexibility from different type and size of controllable energy resources. These flexible energy resources can be used in an aggregated manner to provide different ancillary services for the distribution and transmission network. In addition, flexible energy resources and renewable generation can be utilized in different kinds of energy communities and smart cities to benefit all stakeholders and society at the same time with future-proof market structures, new business models and management schemes enabling increased utilization of flexible energy resources. Many of the flexible energy resources and renewable-based generation units are also inverter-interfaced and therefore the authors present future power converter systems for energy sources as well as the latest age of multilevel converters.

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Amutha, W. Margaret, H. Caleb Andrew, A. Debie Shajie, and J. Praveen Immanuel Paulraj. "Renewable power interface based rural telecom." International Journal of Power Electronics and Drive Systems (IJPEDS) 10, no. 2 (June 1, 2019): 917. http://dx.doi.org/10.11591/ijpeds.v10.i2.pp917-927.

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<span>To power remote area telecom where grid supplied electricity is unreliable, an alternative exists in the form of renewable energy sources. These sources mainly rely on the weather condition of a particular area for their source of power. To overcome such problem, hybridization of energy sources are prefered. Hybridization of solar-wind systems use a separate converter for each source thus leading to a complex, bulky and less efficient system. This paper presents a single renewable power interface which allows solar and wind sources to supply the load separately or simultaneously depending on the availability of the energy sources. It uses cuk and sepic converter topologies to form cuk-seic interfece. These systems also use battery backup to store excess energy and to make best use of their operating characteristics. Performance comparison between a cuk-sepic renewable power interface with and without MPPT using MATLAB/SIMULINK is presented. A detailed componentwise analysis is also done to calculate best efficient interface. It is found that the cuk-sepic interface with MPPT is efficient. A lab level model for cuk-sepic interface is developed and tested. The experimental results proved the effective operation of a single renewable power cuk-sepic interface with MPPT. </span>

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Vasil’ev, I. A., G. I. Kol’nichenko, Y. V. Tarlakov, and A. V. Sirotov. "Renewable energy sources in independent systems of power supply." FORESTRY BULLETIN 24, no. 4 (August 2020): 91–97. http://dx.doi.org/10.18698/2542-1468-2020-4-91-97.

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Jaszczur, Marek, Qusay Hassan, Haidar N. Al-Anbagi, and Patryk Palej. "A numerical analysis of a HYBRID PV+WT power system." E3S Web of Conferences 128 (2019): 05001. http://dx.doi.org/10.1051/e3sconf/201912805001.

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The increase in global energy consumption and the expected exhaustion of traditional energy sources, especially in the last century, led to an increased search for alternative sources of energy.The use of renewable energy sources has become extremely important to reduce dependence on fossil fuels. Due to the stochastic nature of the renewable energy sources such as the wind speed fluctuation and the intensity of solar radiation the stable operation of the systems base single renewable source can be problematic. But the using two or more of these sources results in higher stability than relying on a single source. For this reason, hybrid renewable energy systems have become an attractive solution in thefield of renewable energy. A hybrid energy system is a combination of two or more renewable energy sources that can enhance each another to increase the reliability of the supplied energy. The objective of this paper is investigation about the energy supplying improvement and the energy efficiency utilisation by hybridisation using two renewable energy resources: wind energy and solar energy with respect two different optimisation objectives: economical to reduce the net present cost and ecological to reduce CO2 emissions. Presented system has been implemented to supply a single household with an electric load.

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Hernández, Jesus C. "Grid-Connected Renewable Energy Sources." Electronics 10, no. 5 (March 3, 2021): 588. http://dx.doi.org/10.3390/electronics10050588.

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The use of renewable energy sources (RESs) is a need of global society. This editorial, and its associated Special Issue “Grid-Connected Renewable Energy Sources”, offer a compilation of some of the recent advances in the analysis of current power systems composed after the high penetration of distributed generation (DG) with different RESs. The focus is on both new control configurations and novel methodologies for the optimal placement and sizing of DG. The eleven accepted papers certainly provide a good contribution to control deployments and methodologies for the allocation and sizing of DG.

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Dragomir, Florin, and Otilia Elena Dragomir. "Improvement of Energy Consume from Hybrid Systems Integrating Renewable Energy Sources." Advanced Materials Research 512-515 (May 2012): 1147–50. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1147.

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This article proposes a solution for smart grid technologies using renewable energy and has as main result the optimisation of energy generation and consum in a power system with distributed power generation from renewable resources, by designing and implementation an system platform for monitoring and transmission the message (phone via SMS) by consumers. This application make available to consumers real-time information about energy, giving them the opportunity to make smart choices, allowing them to reduce their monthly bills and carbon emissions, reducing also the demand during peak periods and allows a more efficient use of renewable energy resources.

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D`Arco, S., R. Rizzo, D. Coll-Mayor, and P. Tricoli. "Energy management of stand-alone power systems with renewable energy sources." Renewable Energy and Power Quality Journal 1, no. 04 (April 2006): 372–78. http://dx.doi.org/10.24084/repqj04.469.

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Дисертації з теми "Renewable energy sources in power systems"

Nielsen, Knut Erik. "Superconducting magnetic energy storage in power systems with renewable energy sources." Thesis, Norwegian University of Science and Technology, Department of Electrical Power Engineering, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10817.

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The increasing focus on large scale integration of new renewable energy sources like wind power and wave power introduces the need for energy storage. Superconducting Magnetic Energy Storage (SMES) is a promising alternative for active power compensation. Having high efficiency, very fast response time and high power capability it is ideal for levelling fast fluctuations. This thesis investigates the feasibility of a current source converter as a power conditioning system for SMES applications. The current source converter is compared with the voltage source converter solution from the project thesis. A control system is developed for the converter. The modulation technique is also investigated. The SMES is connected in shunt with an induction generator, and is facing a stiff network. The objective of the SMES is to compensate for power fluctuations from the induction generator due to variations in wind speed. The converter is controlled by a PI-regulator and a current compensation technique deduced from abc-theory. Simulations on the system are carried out using the software PSIM. The simulations have proved that the SMES works as both an active and reactive power compensator and smoothes power delivery to the grid. The converter does however not seem like an optimum solution at the moment. High harmonic distortion of the output currents is the main reason for this. However this system might be interesting for low power applications like wave power. I

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Homon, Bohdan. "Combined power supply system converting unit with renewable sources." Thesis, Дніпропетровський національний університет залізничного транспорту ім. академіка В. Лазаряна, 2017. https://er.knutd.edu.ua/handle/123456789/9329.

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The article deals with the implementation of renewable energy sources in local electrical systems such as solar battery, wind turbines. The improvement and wide spread of the sources of distributed generation renewable energy sources is one of the ways to improve the energy security of the country.
Стаття присвячена питанню впровадження відновлювальних джерел енергії (сонячна батарея, вітрові турбіни) в місцевих електричних системах. Покращення та широке розповсюдження поновлюваних джерел енергії розподіленої генерації є одним із способів підвищення енергетичної безпеки країни.
Статья посвящена вопросу внедрения возобновляемых источников энергии (солнечная батарея, ветровые турбины) в местных электрических системах. Улучшение и широкое распространение возобновляемых источников энергии распределенной генерации является одним из способов повышения энергетической безопасности страны.

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Kusakana, Kanzumba. "Optimal operation control of hybrid renewable energy systems." Thesis, Bloemfontein: Central University of Technology, Free State, 2014. http://hdl.handle.net/11462/670.

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Thesis (D. Tech. (Electrical Engineering)) -- Central University of Technology, Free State, 2014
For a sustainable and clean electricity production in isolated rural areas, renewable energies appear to be the most suitable and usable supply options. Apart from all being renewable and sustainable, each of the renewable energy sources has its specific characteristics and advantages that make it well suited for specific applications and locations. Solar photovoltaic and wind turbines are well established and are currently the mostly used renewable energy sources for electricity generation in small-scale rural applications. However, for areas in which adequate water resources are available, micro-hydro is the best supply option compared to other renewable resources in terms of cost of energy produced. Apart from being capital-cost-intensive, the other main disadvantages of the renewable energy technologies are their resource-dependent output powers and their strong reliance on weather and climatic conditions. Therefore, they cannot continuously match the fluctuating load energy requirements each and every time. Standalone diesel generators, on the other hand, have low initial capital costs and can generate electricity on demand, but their operation and maintenance costs are very high, especially when they run at partial loads. In order for the renewable sources to respond reliably to the load energy requirements, they can be combined in a hybrid energy system with back-up diesel generator and energy storage systems. The most important feature of such a hybrid system is to generate energy at any time by optimally using all available energy sources. The fact that the renewable resources available at a given site are a function of the season of the year implies that the fraction of the energy provided to the load is not constant. This means that for hybrid systems comprising diesel generator, renewable sources and battery storage in their architecture, the renewable energy fraction and the energy storage capacity are projected to have a significant impact on the diesel generator fuel consumption, depending on the complex interaction between the daily variation of renewable resources and the non-linear load demand. V This was the context on which this research was based, aiming to develop a tool to minimize the daily operation costs of standalone hybrid systems. However, the complexity of this problem is of an extremely high mathematical degree due to the non-linearity of the load demand as well as the non-linearity of the renewable resources profiles. Unlike the algorithms already developed, the objective was to develop a tool that could minimize the diesel generator control variables while maximizing the hydro, wind, solar and battery control variables resulting in saving fuel and operation costs. An innovative and powerful optimization model was then developed capable of efficiently dealing with these types of problems. The hybrid system optimal operation control model has been simulated using fmincon interior-point in MATLAB. Using realistic and actual data for several case studies, the developed model has been successfully used to analyse the complex interaction between the daily non-linear load, the non-linear renewable resources as well as the battery dynamic, and their impact on the hybrid system’s daily operation cost minimization. The model developed, as well as the solver and algorithm used in this work, have low computational requirements for achieving results within a reasonable time, therefore this can be seen as a faster and more accurate optimization tool.

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Esmaili, Gholamreza. "Application of advanced power electronics in renewable energy sources and hybrid generating systems." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1141850833.

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Schmitt, Andreas Joachim. "Power System Parameter Estimation for Enhanced Grid Stability Assessment in Systems with Renewable Energy Sources." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/83459.

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The modern day power grid is a highly complex system; as such, maintaining stable operations of the grid relies on many factors. Additionally, the increased usage of renewable energy sources significantly complicates matters. Attempts to assess the current stability of the grid make use of several key parameters, however obtaining these parameters to make an assessment has its own challenges. Due to the limited number of measurements and the unavailability of information, it is often difficult to accurately know the current value of these parameters needed for stability assessment. This work attempts to estimate three of these parameters: the Inertia, Topology, and Voltage Phasors. Without these parameters, it is no longer possible to determine the current stability of the grid. Through the use of machine learning, empirical studies, and mathematical optimization it is possible to estimate these three parameters when previously this was not the case. These three methodologies perform estimations through measurement-based approaches. This allows for the obtaining of these parameters without required system knowledge, while improving results when systems information is known.
Ph. D.

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Corr, Mandi Lee. "Renewable energy in Montana system applications and technlogy /." [Missoula, Mont.] : The University of Montana, 2008. http://etd.lib.umt.edu/theses/available/etd-04212009-123850/unrestricted/Mandi_Corr_Thesis.pdf.

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Bouzguenda, Mounir. "A methodology to assess the interactions of renewable energy systems dynamics with fluctuating loads." Diss., This resource online, 1992. http://scholar.lib.vt.edu/theses/available/etd-06062008-171542/.

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Noudjiep, Djiepkop Giresse Franck. "Feeder reconfiguration scheme with integration of renewable energy sources using a Particle Swarm Optimisation method." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2712.

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Thesis (Master of Engineering in Electrical Engineering)--Cape Peninsula University of Technology, 2018.
A smart grid is an intelligent power delivery system integrating traditional and advanced control, monitoring, and protection systems for enhanced reliability, improved efficiency, and quality of supply. To achieve a smart grid, technical challenges such as voltage instability; power loss; and unscheduled power interruptions should be mitigated. Therefore, future smart grids will require intelligent solutions at transmission and distribution levels, and optimal placement & sizing of grid components for optimal steady state and dynamic operation of the power systems. At distribution levels, feeder reconfiguration and Distributed Generation (DG) can be used to improve the distribution network performance. Feeder reconfiguration consists of readjusting the topology of the primary distribution network by remote control of the tie and sectionalizing switches under normal and abnormal conditions. Its main applications include service restoration after a power outage, load balancing by relieving overloads from some feeders to adjacent feeders, and power loss minimisation for better efficiency. On the other hand, the DG placement problem entails finding the optimal location and size of the DG for integration in a distribution network to boost the network performance. This research aims to develop Particle Swarm Optimization (PSO) algorithms to solve the distribution network feeder reconfiguration and DG placement & sizing problems. Initially, the feeder reconfiguration problem is treated as a single-objective optimisation problem (real power loss minimisation) and then converted into a multi-objective optimisation problem (real power loss minimisation and load balancing). Similarly, the DG placement problem is treated as a single-objective problem (real power loss minimisation) and then converted into a multi-objective optimisation problem (real power loss minimisation, voltage deviation minimisation, Voltage stability Index maximisation). The developed PSO algorithms are implemented and tested for the 16-bus, the 33-bus, and the 69-bus IEEE distribution systems. Additionally, a parallel computing method is developed to study the operation of a distribution network with a feeder reconfiguration scheme under dynamic loading conditions.

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Horton, Bryan. "Rotational motion of pendula systems for wave energy extraction." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2009. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=25873.

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Hr, Iswadi. "Phasor measurement and stability analysis of power system with renewable energy sources." Thesis, Queen's University Belfast, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.706979.

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In order for the island of Ireland to achieve the ambitious government target of 40% of electrical energy from renewable energy sources, mainly from wind turbine generation, significant changes in power system network topology and operational procedure are required. The impact of these changes on power system stability needs to be fully investigated to ensure secure and reliable operation of the power system. Therefore, the aim of this thesis is to analyse the impact of wind turbine generation on small signal and frequency stability whilst taking advantage of phasor measurement unit (PMU) technology installed in the All-Island power system for the purpose of stability analysis and parameter estimation. PMU data of active power from the main AC North-South interconnector as well as from fixed-speed and doubly-fed induction generator based wind turbines is employed to obtain the All-Island inter-area and wind turbine oscillation modes. A correlation coefficient analysis between inter-area frequency oscillation and the active power output of thermal power plants and wind turbine generation is conducted to identify the source of the oscillations. A number of case studies with differing operational procedures are simulated using DigSILENT to understand the mechanisms that may influence the small signal stability performance of a power system with high DFIG penetration. The implementation of Prony Analysis to analyse small signal stability is conducted by employing both simulated and actual PMU ringdown data. Both wide-area and single-site PMU based techniques are assessed for purposes of monitoring small signal stability. The frequency response metrics are assessed with respect to the power system’s intertia and system non synchronous penetration to understand the significance of these parameters during frequency events. A method to estimate a synchronous generator’s inertia constant from PMU data during a frequency disturbance is proposed and described.

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Книги з теми "Renewable energy sources in power systems"

Zhu, Jizhong. Renewable energy applications in power systems. Hauppauge, N.Y: Nova Science Publisher's, 2012.

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Infield, D. G. Renewable energy in power systems. Chichester, England: John Wiley & Sons, 2008.

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Zhu, Jizhong. Renewable energy applications in power systems. Hauppauge, N.Y: Nova Science Publisher's, 2012.

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Masters, Gilbert M. Renewable and efficient electric power systems. Hoboken, NJ: John Wiley & Sons, 2004.

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Renewable and efficient electric power systems. Hoboken, NJ: John Wiley & Sons, 2004.

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Alternative energy systems and applications. Hoboken, NJ: Wiley, 2009.

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Bizon, Nicu. Advances in energy research: Distributed generations systems integrating renewable energy resources. Hauppauge, N.Y: Nova Science Publishers, 2011.

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Afgan, Naim. Sustainable resilience of energy systems. New York: Nova Science Publishers, 2010.

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Afgan, Naim. Sustainable resilience of energy systems. Hauppauge, N.Y: Nova Science Publishers, 2010.

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Keyhani, Ali. Design of smart power grid renewable energy systems. Hoboken, N.J: Wiley, 2011.

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Частини книг з теми "Renewable energy sources in power systems"

Fuchs, Ewald F., and Mohammad A. S. Masoum. "Electric Energy Sources." In Power Conversion of Renewable Energy Systems, 69–113. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4419-7979-7_3.

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Zare Oskouei, Morteza, and Behnam Mohammadi-Ivatloo. "Introduction to Techno-Economic Assessment of Renewable Energy Sources." In Power Systems, 1–19. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44376-4_1.

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Zare Oskouei, Morteza, and Behnam Mohammadi-Ivatloo. "Reliability Assessment in the Presence of Renewable Energy Sources." In Power Systems, 131–55. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44376-4_6.

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Misak, Stanislav, and Lukas Prokop. "Systems and Equipment of Wind Power Plants." In Operation Characteristics of Renewable Energy Sources, 43–105. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-43412-4_2.

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Zare Oskouei, Morteza, and Behnam Mohammadi-Ivatloo. "Modeling and Optimal Operation of Renewable Energy Sources in DIgSILENT PoweFactory." In Power Systems, 51–81. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44376-4_3.

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Zare Oskouei, Morteza, and Behnam Mohammadi-Ivatloo. "Electrical Challenges Associated with Integrating Renewable Energy Sources into Power Grids." In Power Systems, 105–30. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44376-4_5.

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Zare Oskouei, Morteza, and Behnam Mohammadi-Ivatloo. "Power Quality and Harmonics Analysis in the Presence of Renewable Energy Sources." In Power Systems, 83–104. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44376-4_4.

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Nardini, Isabella. "Geothermal Power Generation." In The Palgrave Handbook of International Energy Economics, 183–94. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86884-0_11.

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AbstractGeothermal energy is emerging as one of the most reliable sources of renewable energy and gaining relevance over conventional and non-renewable sources of energy because of its constant availability and sustainable nature. Furthermore, the deployment of geothermal energy helps reduce a country’s dependence on fossil fuels. Besides being a clean and renewable energy source with a low levelized cost of electricity, geothermal reservoirs have huge potential for power generation and may become the pillar of local grid systems, meeting the baseload demand. However, the active contribution from policy makers is necessary to design and develop economic and financial instruments and a favourable regulatory framework to decrease the risk of investment and the capital cost for private investors.

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Zohuri, Bahman. "Fission Nuclear Power Plants for Renewable Energy Source." In Hybrid Energy Systems, 195–211. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70721-1_7.

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Thrän, Daniela, Marcus Eichhorn, Alexander Krautz, Subhashree Das, and Nora Szarka. "Flexible Power Generation from Biomass - An Opportunity for a Renewable Sources-Based Energy System?" In Transition to Renewable Energy Systems, 499–521. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2013. http://dx.doi.org/10.1002/9783527673872.ch25.

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Тези доповідей конференцій з теми "Renewable energy sources in power systems"

"Power electronics and renewable energy sources." In 2013 4th Power Electronics, Drive Systems & Technologies Conference (PEDSTC). IEEE, 2013. http://dx.doi.org/10.1109/pedstc.2013.6506749.

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Gigantidou, Antiopi. "Renewable energy sources in Crete." In 2013 IREP Symposium - Bulk Power System Dynamics and Control - IX Optimization, Security and Control of the Emerging Power Grid (IREP). IEEE, 2013. http://dx.doi.org/10.1109/irep.2013.6629344.

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Jagadeeswaran S., Prajof P., and Sasi K. Kottayil. "A grid interfacing scheme for renewable energy sources." In 2014 Power and Energy Systems Conference: Towards Sustainable Energy (PESTSE). IEEE, 2014. http://dx.doi.org/10.1109/pestse.2014.6805326.

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Marchel, Piotr, Jozef Paska, Krzysztof Zagrajek, Mariusz Klos, Karol Pawlak, Pawel Terlikowski, Magdalena Bledzinska, and Lukasz Michalski. "Reliability Models of Generating Units Utilizing Renewable Energy Sources." In 2019 Modern Electric Power Systems (MEPS). IEEE, 2019. http://dx.doi.org/10.1109/meps46793.2019.9395052.

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Vlahović, Miljan, Milica Vlahović, and Zoran Stević. "Utilizing renewable resources – converting geothermal energy to electricity." In 8th International Conference on Renewable Electrical Power Sources. SMEITS, 2020. http://dx.doi.org/10.24094/mkoiee.020.8.1.101.

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According to the official definition, approved by the European Geothermal Energy Council (EGEC), geothermal energy is energy accumulated as heat below the surface of solid soil. Geothermal energy is thermal energy generated and stored in the Earth. It is generally defined as the part of geothermal heat that can be directly utilized as heat or converted into other types of energy. Geothermal resources vary by location and depth towards the Earth's core. Their use is possible for different purposes depending on their temperature. This paper presents the harnessing geothermal resources for electricity generation. There are three main types of geothermal power plants: dry steam plants, flash steam plants, and binary cycle plants. Dry steam plants pipe hot steam from underground into turbines, which powers the generator to provide electricity. Flash steam plants pump hot water from underground into a cooler flash tank. The formed steam powers the electricity generator. Binary cycle plants pump hot water from underground through a heat exchanger that heats a second liquid to transform it into steam, which powers the generator. In all mentioned systems the used fluids are recycled. It can be concluded that geothermal power plants work similarly to other power plants, but providing the steam for starting the turbine from the earth's interior. The fact that used fluids return to the ground makes geothermal energy resources renewable.

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Pina, Eduardo A., Miguel A. Lozano, and Luis M. Serra. "Multicriteria Synthesis of Trigeneration Systems Assisted With Renewable Energy Sources and Thermal Energy Storage." In ASME 2017 Power Conference Joint With ICOPE-17 collocated with the ASME 2017 11th International Conference on Energy Sustainability, the ASME 2017 15th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2017 Nuclear Forum. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/power-icope2017-3103.

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The increasing world energy demand as a result of society development brings forth a growing environmental concern. The use of high-efficiency alternative systems is becoming progressively more interesting due to economic reasons and regional incentives. The issue of finding the best configuration that minimizes total annual cost is not enough anymore, as the environmental concern has become one of the objectives in the synthesis of energy systems. The minimization of costs is often contradictory to the minimization of environmental impact. Multi-objective optimization tackles the conflicting objectives issue by providing a set of trade-off solutions, or Pareto solutions, that can be examined by the decision maker in order to choose the best configuration for the given scenario. The present work proposes a mixed integer linear programming model for the synthesis of a trigeneration system that must attend the electricity, heat, and cooling demands of a multifamily building complex in Zaragoza, Spain. The objective functions to be minimized are the overall annual costs and the overall annual CO2 emissions, considering investment, maintenance and operation costs. As a first approach, the single-objective configurations for each objective function are evaluated. Then, the Pareto frontier is obtained for the minimization of total annual costs and total annual CO2 emissions, allowing to obtain the best trade-off configuration, which brings results close to the optimal single objectives. It is worth mentioning that the treatment of the energy prices was simplified in order to keep on the same level of detail as energy CO2 emissions, which are given only on an annual basis. On the other hand, the optimization model developed can be further complicated in order to consider more complex situations.

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"Track A-1: Renewable energy power generation sources." In 2013 1st International Conference & Exhibition on the Applications of Information Technology to Renewable Energy Processes and Systems (IT-DREPS). IEEE, 2013. http://dx.doi.org/10.1109/it-dreps.2013.6588139.

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Coelho, Humberto T., Vanessa C. de Sá, Carlos A. Gallo, and Roberto M. Finzi Neto. "Development of a DC-DC Converter with Symmetrical Output Applied in Renewable Energy Sources." In Power and Energy Systems. Calgary,AB,Canada: ACTAPRESS, 2011. http://dx.doi.org/10.2316/p.2011.714-146.

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Shaha, Radharaman, D. P. Kothari, and V. S. Chandrakar. "Optimization of renewable energy sources for hybrid power generation." In 2016 Biennial International Conference on Power and Energy Systems: Towards Sustainable Energy (PESTSE). IEEE, 2016. http://dx.doi.org/10.1109/pestse.2016.7516527.

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Stanescu, Carmen, Dorel Stanescu, Mihaela Albu, and Mihai Sanduleac. "Meter accuracy in renewable energy sources-based prosumer nodes." In 2017 International Conference on Modern Power Systems (MPS). IEEE, 2017. http://dx.doi.org/10.1109/mps.2017.7974382.

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Звіти організацій з теми "Renewable energy sources in power systems"

Barnes, P. R., W. P. Dykas, B. J. Kirby, S. L. Purucker, and J. S. Lawler. The integration of renewable energy sources into electric power transmission systems. Office of Scientific and Technical Information (OSTI), July 1995. http://dx.doi.org/10.2172/108200.

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Barnes, P. R. The Integration of Renewable Energy Sources into Electric Power Distribution Systems. Office of Scientific and Technical Information (OSTI), January 1994. http://dx.doi.org/10.2172/814204.

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Elshurafa, Amro, Frank Felder, and Nezar Alhaidari. Achieving Renewable Energy Targets Without Compromising the Power Sector’s Reliability. King Abdullah Petroleum Studies and Research Center, March 2022. http://dx.doi.org/10.30573/ks--2021-dp23.

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Saudi Arabia’s Ministry of Energy has set ambitious renewable energy goals. Although the Kingdom’s current energy mix is dominated by conventional energy (>95%), it aims to draw 50% of its energy from renewable sources by 2030. Currently, the Kingdom enjoys very high solar photovoltaic potential, and it is also well positioned for wind generation. Thus, studying the reliability of highly renewable power systems and the impact of converting conventional generation to renewable energy is of paramount importance. The latter analysis is important because temperatures in the Kingdom are often high for a considerable portion of the year.

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Barnes, P. R., J. W. Van Dyke, F. M. Tesche, and H. W. Zaininger. The integration of renewable energy sources into electric power distribution systems. Volume 1: National assessment. Office of Scientific and Technical Information (OSTI), June 1994. http://dx.doi.org/10.2172/10171039.

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Zaininger, H. W. The Integration of Renewable Energy Sources into Electric Power Distribution Systems, Vol. II Utility Case Assessments. Office of Scientific and Technical Information (OSTI), January 1994. http://dx.doi.org/10.2172/814519.

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Zaininger, H. W., P. R. Ellis, and J. C. Schaefer. The integration of renewable energy sources into electric power distribution systems. Volume 2, Utility case assessments. Office of Scientific and Technical Information (OSTI), June 1994. http://dx.doi.org/10.2172/10170818.

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Kroposki, Benjamin D. Integrating High Levels of Variable Renewable Energy into Electric Power Systems. Office of Scientific and Technical Information (OSTI), August 2017. http://dx.doi.org/10.2172/1374134.

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Johra, Hicham. Overview of the Typical Domestic Hot Water Production Systems and Energy Sources in the Different Countries of the World. Department of the Built Environment, Aalborg University, December 2019. http://dx.doi.org/10.54337/aau332609123.

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The aim of this technical report is to present an overview of the current domestic hot water production systems that are typically in use in the residential buildings of the different countries of the world. One can clearly observe the large potential for the use of renewable energy sources and the energy efficiency improvement of the domestic hot water production systems it in many of those countries. The data of this report originates from various types of publications reporting typical domestic hot water production systems and energy sources in different countries. Nonetheless, this information is rarely established from large national surveys of dwellings. It should therefore be used as an estimate rather than a precise statistical overview. Many countries are not included in the table as it was impossible to find any information about them regarding domestic hot water production.

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Andersson, Göran. Thematic synthesis “Energy Networks” of the NRP “Energy”. Swiss National Science Foundation (SNSF), December 2019. http://dx.doi.org/10.46446/publication_nrp70_nrp71.2019.2.en.

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Switzerland’s energy grids are reliable and stable – but they are facing new challenges. These include the fact that the new renewable energy sources, namely photovoltaic systems and wind farms, only produce electricity on an irregular basis. Greater flexibility is therefore required in the energy grid: with new storage solutions for electricity and heat on the supply side and automated load management on the demand side. The potential synergies between the various energy sources must also be exploited.

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Ayele, Seife, and Vianney Mutyaba. Chinese-Funded Electricity Generation in Sub-Saharan Africa and Implications for Public Debt and Transition to Renewable Energy. Institute of Development Studies (IDS), November 2021. http://dx.doi.org/10.19088/ids.2021.063.

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While China has been increasingly contributing to the recent growth in electricity generation in sub-Saharan Africa (SSA), the effects of China-funded investment on host countries’ debt burden and transition to renewable energy sources have not been sufficiently explored. Drawing on secondary data, combined with deep dive studies of Ethiopia and Uganda, this paper shows that despite significant liberalisation of the power sector in SSA, Chinese investments in the electricity industry continue to follow state-led project contract-based models. We show that this approach has failed to encourage Chinese firms to build compelling investment portfolios for competitive procurements within the region and, instead and inadvertently, it has exacerbated the debt burden of host country governments. Second, in spite of the global drive towards climate resilient energy generation, Chinese funding of electricity generation in SSA is not sufficiently channelled towards modern renewable energy sources such as wind and solar power that could reduce vulnerability to climate change. While recognising that the private sector-led competitive model of power generation is not without limitations, we argue that SSA’s electricity generation strategy that leads to less public debt and more climate resilience involves increased involvement of Chinese investment in the competitive model, with more diversification of such investment portfolios towards modern renewables such as wind and solar energy resources.

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