Статті в журналах: "Electric technologie"

1

Bouhaki, L., R. Saadani, R. Agounoun, K. Sbai, and M. Rahmoune. "Experimental study and modeling of three grid-connected photovoltaic technologies of Meknes City." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (March 1, 2018): 390. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp390-396.

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Photovoltaic (PV) systems are the most promising renewable energy source in Morocco due to its abundant solar irradiation. The Moroccan government has launched various renewable energy programs to encourage the use of PV systems. In this work we present a comparative study in terms of energy produced and the efficiency of a grid connected photovoltaic (PV) system installed on the roof of the building occupied by the “Ecole Supérieure de Technologie de Meknes” (ESTM). The on-grid connected photovoltaic system has a total power of 5860 Watts (Wp). This system provides an average daily reduction of 30 kWh in the consumption of electrical energy at ESTM facilities; this will allow us to save fossil fuels and reduce emissions of greenhouse gas. The average annual production of electric power is estimated at 10.5 MWh, equivalent to burning 0.9 tons of oil, which will prevent the emission of about 2 tons / year of CO2 in the atmosphere. Three different commercial solar modules, manufactured with different materials and technologies in monocrystalline silicon, polycrystalline silicon and amorphous silicon were tested.

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Halwas, M., J. Hofmann, J. Fleischer, C. Riehm, C. Spieker, M. Fister, G. Stoehr, A. Wist, F. Sell-Le Blanc, and L. Weiße. "Entwicklung eines parallelen Technologie- und Produktentwicklungsprozesses/Development of a parallel technology and product development process using the example of winding design and manufacture as a part of the NeWwire funded project." wt Werkstattstechnik online 108, no. 05 (2018): 301–6. http://dx.doi.org/10.37544/1436-4980-2018-05-27.

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In dem folgenden Artikel wird die parallele Technologie- und Produktentwicklung am Beispiel der Wicklungsauslegung und -fertigung beschrieben. Diese findet im Rahmen des Förderprojektes NeWwire (Neuartige serienflexible Wickelverfahren für die wirtschaftliche automatisierte Fertigung von hoch performanten elektrischen Maschinen) statt. Ziel des Forschungsprojekts NeWwire ist die Entwicklung sowie Auslegung eines neuartigen Wickelverfahrens zur automatisierten Fertigung von Elektromotoren im Hochleistungsbereich für den automobilen Einsatz. Hierbei stellt die effektive Wicklung im Stator zur Leistungssteigerung eine besondere Herausforderung dar.   The following article describes the parallel technology and product development using the example of winding design and manufacture. This takes place as part of the NeWwire funded project („New series-flexible winding processes for the economic, automated production of high-performance electrical machines“). The goal of the research project NeWwire is the development and design of a new winding process for the automated production of electric motors in the high-performance area for automotive use. In this field the effective winding in the stator in order to increase the performance is a specific challenge.

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Schwaeppe, Henrik, Luis Böttcher, Klemens Schumann, Lukas Hein, Philipp Hälsig, Simon Thams, Paula Baquero Lozano, and Albert Moser. "Analyzing Intersectoral Benefits of District Heating in an Integrated Generation and Transmission Expansion Planning Model." Energies 15, no. 7 (March 22, 2022): 2314. http://dx.doi.org/10.3390/en15072314.

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In the field of sector integration, the expansion of district heating (DH) is traditionally discussed with regard to the efficient integration of renewable energy sources (RES) and excess heat. But does DH exclusively benefit from other sectors or does it offer advantages in return? So far, studies have investigated DH only as a closed system or determined intersectoral benefits in a highly aggregated approach. We use and expand an integrated generation and transmission expansion planning model to analyze how the flexibility of DH benefits the energy system and the power transmission grid in particular. First of all, the results confirm former investigations that show DH can be used for efficient RES integration. Total annual system cost can be decreased by expanding DH, due to low investment cost and added flexibility, especially from large-scale heat storage. The high short-term efficiency of heat storage—in combination with electric heating technologie —can be exploited to shift heat demand temporally and, using multiple distributed units, locally to solve electric grid congestion. Although it is unclear whether these results can be replicated in the real world, due to the aggregation and detail of the model, further research in this direction is justified.

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POPESCU, Aurelia-Paulina. "INPUT PROCES ANALYSIS FOR TESTING CAR ENGINES." ANNALS OF THE ACADEMY OF ROMANIAN SCIENTISTS Series on ENGINEERING SCIENCES 14, no. 2 (2022): 83–96. http://dx.doi.org/10.56082/annalsarscieng.2022.2.83.

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The topic covered in this paper is a study conducted in the automotive testing department of Renault Technologie Roumanie.The contains of this study is: an analysis of the testing process from receiving a test request to the generation of results and sending them for interpretation to the customer, the analysis of the types of mechanical engine tests performed at Renault Romania and the economical analysis of implementing a hybrid engine test bench, the first of its kind in Romania, with project analysis and SWOT analysis. What is being pursued by this process is the correct delimitation of the test stages, the succession and the way to become competitive on a market with tradition and which offers opportunities for progressive development along the evolution of vehicles towards hybrid and full-electric.

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Schäfer, Jens, Hannes Wilhelm Weinmann, Dominik Mayer, Tobias Storz, Janna Hofmann, and Jürgen Fleischer. "Synergien zwischen Batterie- und Brennstoffzellen/Synergies between battery and fuel cells - Evaluation based on structural and machine parameters in production processes." wt Werkstattstechnik online 110, no. 10 (2020): 735–41. http://dx.doi.org/10.37544/1436-4980-2020-10-91.

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Nach Ankündigung diverser batterieelektrischer Modelle wird auch die PEM (Proton Exchange Membrane)-Brennstoffzelle als mögliche Zukunftstechnologie im Last- und Linienverkehr diskutiert. Ob und wann sich eine Technologie durchsetzt, hängt von der verwendeten Produktionstechnik ab, denn diese bestimmt Stückzahlen und resultierende Kosten. Die Vergangenheit zeigt, dass sich produzierende Industrien oft entlang vorhandener Kompetenzen in etablierten Bereichen entwickelt haben. In diesem Beitrag sollen daher Synergiepotenziale zwischen der Batterie- und Brennstoffzellenfertigung diskutiert werden.   Following the announcement of various battery electric models, PEM fuel cells are also discussed as a future technology in truck and line traffic. Whether and when a technology will be generally accepted depends largely on the production technology used, as this determines the number of units and the resulting costs. The past has shown that manufacturing industries have often developed along existing competencies in established areas. This article will therefore discuss the potential synergies between battery and fuel cell production.

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Yo‘Lchiyev, Mash’albek E. "CONTENTS, PROBLEMS AND DIDACTICAL BASIS OF TEACHING THE SUBJECT "ELECTRIC NETWORKS AND SYSTEMS" IN THE ELECTRONIC EDUCATIONAL ENVIRONMENT." European International Journal of Multidisciplinary Research and Management Studies 02, no. 04 (April 1, 2022): 341–49. http://dx.doi.org/10.55640/eijmrms-02-04-65.

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The maximum effectiveness of the process of preparation for the e-learning environment can be achieved only through the coordinated development of psychological, technical, technological, information, legal, methodological and other components of the process. The introduction of modern information and communication technologies into the educational process has led to the creation of a new form of teaching - distance learning - in addition to traditional teaching methods.

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CAVALI, F. V., and T. M. SOUZA. "ESTUDO SOBRE TECNOLOGIAS EM VEÍCULOS ELÉTRICOS: UM REVIEW." Revista SODEBRAS 15, no. 169 (January 2020): 155–62. http://dx.doi.org/10.29367/issn.1809-3957.15.2020.169.155.

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8

Wang, Jian Gen, Ya Hui Liu, Li Rong Sun, Fei Cheng, and Ning Wang. "Impact of Different Chemical Materials and Technologies on Leather Conductivity." Advanced Materials Research 233-235 (May 2011): 3040–46. http://dx.doi.org/10.4028/www.scientific.net/amr.233-235.3040.

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The paper researches the processing for leather by utilizing different kinds of tanning materials, retanning and leather fatliquoring, and analyses the effect of leather electroconductibility influenced by water ratio in it and pressure added on the leather. The study illustrates: the greater electric conduction function of tanning materials or amount of polar radical they containing, the better conductivity the leather has. There is a compact relationship between the electric charge of different chemical material which were added in leather and electric conduction function, and the electrical conductivity of leather can be improved obviously by increasing the electric charge and water ratio the leather has.

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9

Naumov, Igor, Sergey Podyachikh, Marina Polkovskaya, and Aleksandr Tretyakov. "Green technologies use in the smart grid construction in rural power supply systems." BIO Web of Conferences 42 (2022): 03006. http://dx.doi.org/10.1051/bioconf/20224203006.

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The article considers the using intelligent controls possibility in low-voltage rural electric networks to minimize the unbalance modes consequences. The proposed technology includes the digital data transmission compilation on the electrical energy parameters with a new balancing technical means the electrical network operating mode. Digital feedback is provided for changes the balancing device (BD) parameters by the unbalancing power consumption changing level. Based on the developed methods compilation, software for calculating unbalancing modes has been created, which makes it possible to assess the currents and voltages unbalancing effect on the power quality and its additional losses change. The “green” technology proposed version, which increases the economic and the electric energy environmental safety use in the rural electric power industry, contains a new constructive solution for the balancing device implementation. The proposed technology was tested on the measurement data basis in existing electrical networks. Based on the MALAB technologies use, changes studied indicators visualization in the before and after BD integration in the electrical network was carried out and its analysis was makes. Used on the “neural networks” MALAB technology, a preventive assessment of the unbalancing power consumption events development in the investigated operating electrical network is presented, as well as the proposed technology effectiveness assessment was carried out.

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10

Srebrov, Bozhidar. "Application of local electric spark deposition technology." Journal scientific and applied research 1, no. 1 (March 3, 2012): 54–57. http://dx.doi.org/10.46687/jsar.v1i1.17.

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Local electric spark deposition technology in the paper is presented. The scheme of the method and his optimization is examined. The applications of this technology by means ELFA machines are described.

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11

Dale, Steinar J., Robert E. Hebner, and Giorgio Sulligoi. "Electric Ship Technologies." Proceedings of the IEEE 103, no. 12 (December 2015): 2225–28. http://dx.doi.org/10.1109/jproc.2015.2497018.

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12

Affonso, Walter, RenataT Tavares, Felipe R. Barbosa, Ricardo Gandolfi, Ricardo J. N. dos Reis, Carlos R. I. da Silva, Timoleon Kipouros, et al. "System architectures for thermal management of hybrid-electric aircraft - FutPrInt50." IOP Conference Series: Materials Science and Engineering 1226, no. 1 (February 1, 2022): 012062. http://dx.doi.org/10.1088/1757-899x/1226/1/012062.

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Abstract Electric and Hybrid-Electric Aircraft (HEA) propulsion system designs shall bring challenges at aircraft and systems level, mainly in propulsion, electric and thermal management systems (TMS). The electrification of the propulsion system relies on large and high-power electrical equipment (e.g., electrical motors, converters, power electronics, batteries, and others) that dissipate heat at a rate at least one order of magnitude higher than conventional propulsion aircraft systems. As a result, high impacts on weight, drag and power consumption of the TMS/cooling systems at the aircraft level are expected. This paper proposes potential technologies to perform the thermal management of future electric and HEA, in the context of FUTPRINT50 project. For each technology, relevant aspects such as its integration to aircraft, safety, operational and maintenance impacts, certification, technologies readiness level (TRL) and the latest research works are analysed. A quantitative comparison of the several technologies is also proposed considering weight, volume, electric power consumption, pneumatic air flow and cooling air flow per cooling effect. Lastly, we present a set of potential TMS architectures for HEA.

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13

Halim, Ahmed Abd El Baset Abd El, Ehab Hassan Eid Bayoumi, Walid El-Khattam, and Amr Mohamed Ibrahim. "Electric vehicles: a review of their components and technologies." International Journal of Power Electronics and Drive Systems (IJPEDS) 13, no. 4 (December 1, 2022): 2041. http://dx.doi.org/10.11591/ijpeds.v13.i4.pp2041-2061.

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The number of electrical vehicles (EVs) on the road has increased in recent years, including battery-electric vehicles (BEV), hybrid-electric vehicles (HEV), plug-in hybrid-electric vehicles (PHEVs), and fuel-cell electric vehicles (FCEV). This mode of transportation is expected to eventually replace internal combustion engine (ICE) vehicles, based on current trends. Each key EV component integrates several technologies that are either currently in use or have the potential to become prominent in the future. Environmental, power systems, and other industries may be adversely affected by electric vehicles (EVs). With sufficient EV penetration, the current power system could be subjected to severe instabilities; nevertheless, with proper management and coordination, EVs can significantly contribute to the success of the smart grid concept. Moreover, EVs have the potential to significantly cut transportation-related emissions of greenhouse gases. However, there are still considerable barriers that EVs must overcome before they can completely replace ICEs. The purpose of this study is to review all the relevant information available on EV architectures, battery energy sources, charging processes, and control approaches. Its goal is to provide a comprehensive overview of current EV technology.

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Adan, Shajarul, and Shavet Sharma. "Innovative Technologies for Electrical Domain." International Journal of Trend in Scientific Research and Development Volume-2, Issue-5 (August 31, 2018): 2384–87. http://dx.doi.org/10.31142/ijtsrd18362.

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15

Afonso, Joao L., Luiz A. Lisboa Cardoso, Delfim Pedrosa, Tiago J. C. Sousa, Luis Machado, Mohamed Tanta, and Vitor Monteiro. "A Review on Power Electronics Technologies for Electric Mobility." Energies 13, no. 23 (December 1, 2020): 6343. http://dx.doi.org/10.3390/en13236343.

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Concerns about greenhouse gas emissions are a key topic addressed by modern societies worldwide. As a contribution to mitigate such effects caused by the transportation sector, the full adoption of electric mobility is increasingly being seen as the main alternative to conventional internal combustion engine (ICE) vehicles, which is supported by positive industry indicators, despite some identified hurdles. For such objective, power electronics technologies play an essential role and can be contextualized in different purposes to support the full adoption of electric mobility, including on-board and off-board battery charging systems, inductive wireless charging systems, unified traction and charging systems, new topologies with innovative operation modes for supporting the electrical power grid, and innovative solutions for electrified railways. Embracing all of these aspects, this paper presents a review on power electronics technologies for electric mobility where some of the main technologies and power electronics topologies are presented and explained. In order to address a broad scope of technologies, this paper covers road vehicles, lightweight vehicles and railway vehicles, among other electric vehicles.

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16

Smolentsev, N. I., and L. M. Chetoshnikova. "Electric network topology and method of transmission of electric energy." Power engineering: research, equipment, technology 21, no. 4 (December 9, 2019): 95–103. http://dx.doi.org/10.30724/1998-9903-2019-21-4-95-103.

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The purpose of the work is to reduce losses and increase energy saving in electric networks. To achieve this goal, a multilevel topology of the electrical network and an asynchronous method for transferring electrical energy between nodes including a load, energy sources, energy storage devices connected in an appropriate manner are proposed. It is shown by the mathematical method that this network topology allows using energy storage devices controlled appropriately and using tele-information technologies to optimize the balance of electric energy in the network, achieving equality of the generated and consumed electricity. Such a network topology and a method of transmitting electrical energy can be the basis of digital technologies in the energy sector (ENERNET).

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17

Gareev, A. A. "Technology of electric centrifugal pumps operation without scaling." Equipment and Technologies for Oil and Gas Complex, no. 3 (2018): 27–31. http://dx.doi.org/10.30713/1999-6934-2018-3-27-31.

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18

Imai, Kouji, Atsuo Kawamura, Sigenori Kinoshita, Tadashi Ashikaga, Kenichi Yokoe, and Masaharu Asano. "Electric Vehicle Related Technologies. Electric Vehicle Related Technologies; Present Technologies and Future Trend on Power Electronics for Electric Vehicles." IEEJ Transactions on Industry Applications 116, no. 3 (1996): 233–44. http://dx.doi.org/10.1541/ieejias.116.233.

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Cheah, Yt Jun, Muhamad Ramdzan Buyong, and Mohd Heikal Mohd Yunus. "Wound Healing with Electrical Stimulation Technologies: A Review." Polymers 13, no. 21 (November 1, 2021): 3790. http://dx.doi.org/10.3390/polym13213790.

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Electrical stimulation (ES) is an attractive field among clinicians in the topic of wound healing, which is common yet complicated and requires multidisciplinary approaches. The conventional dressing and skin graft showed no promise on complete wound closure. These urge the need for the exploration of electrical stimulation to supplement current wound care management. This review aims to provide an overview of electrical stimulation in wound healing. The mechanism of galvanotaxis related to wound repair will be reviewed at the cellular and molecular levels. Meanwhile, different modalities of externally applied electricity mimicking a physiologic electric field will be discussed and compared in vitro, in vivo, and clinically. With the emerging of tissue engineering and regenerative medicine, the integration of electroconductive biomaterials into modern miniaturised dressing is of interest and has become possible with the advancing understanding of smart biomaterials.

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Díaz Merchán, María Victoria, Javier Rosero García, and Omar Fredy Prías Caicedo. "Métodos Prospectivos Implementados en la Vigilancia Tecnológica y Prospectiva de Vehículos Eléctricos (EV) y Tecnologías Periféricas en Colombia." Inge CUC 11, no. 2 (July 1, 2015): 59–67. http://dx.doi.org/10.17981/ingecuc.11.2.2015.06.

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Díaz Merchán, María Victoria, Javier Rosero García, and Omar Fredy Prías Caicedo. "Métodos Prospectivos Implementados en la Vigilancia Tecnológica y Prospectiva de Vehículos Eléctricos (EV) y Tecnologías Periféricas en Colombia." Inge CUC 11, no. 2 (July 1, 2015): 59–67. http://dx.doi.org/10.17981/ingecuc/11.2.2015.06.

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FOMENKO, Nikolay, Natalia BOROVIK, Dmitriy GAPONOV, and Ludmila FOMENKO. "APPLICATION OF ELECTRIC EXPLORATION AND ATMOGEOCHEMICAL TECHNOLOGIES IN SEISMIC MICROZONING OF A TUNNEL JUNCTION THROUGH THE MARKOTKH RIDGE." Sustainable Development of Mountain Territories 12, no. 4 (December 30, 2020): 542–54. http://dx.doi.org/10.21177/1998-4502-2020-12-4-542-554.

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Aim. Investigation of the electrical exploration effectiveness and atmogeochemical technologies for detecting discontinuous and folded tectonic disturbances during seismic microzoning of the tunnel crossing over the "Markotkhsky ridge" Task. Study of the tectonic disturbance degree and flooding of the flysch strata using spatial electrical filtration, electropotential tomographic sensing, and atmogeochemical measurements along the tunnel route using data from route surveys and drilling at the tunnel design site. Research methods. 1) Field electrical survey measurements of spatial electrical filtration and electropotential tomographic sensing and with installations of multidirectional electric field excitation for" highlighting " target objects. 2) Using a multi-variant system for presenting field data in the form of tomograms and in the form of electro-profiling and sounding to identify destructive zones related to tectonically disturbed rocks and flood zones. Research results. The analysis of domestic and foreign publications on the use of electrical exploration methods in seismic microdistricting of design, construction and operation of critical facilities is performed. On the example of a tunnel crossing over the Markotkhski ridge: 1) geological, geo-ecological, and seismological characteristics of the area of engineering and geophysical research are considered; 2) the field studies of spatial technologies electric filtrazione, electropotentials tomographic probing and atmogeochemical of observations are produced; 3) the heterogeneity of fliteway thickness laterally and quasioperational this thickness on the electrical properties at depth is shown; 4) as a result poperechnogo analysis curves electropotentials tomographic probing, as well as charts of the spatial electric filtrational and atmogeochemical measurements of an tectonically disturbed and watery areas are identified; 5) the degree of differentiation of the flysch thickness by the values of the specific electrical resistance was estimated using a pseudo-section constructed in the Res2Dinv program. Conclusions. The technologies of electropotential tomographic sounding and spatial electric filtration are unique in terms of mobility and simplicity of field measurements, subsequent geological and geophysical interpretation of anomalous values of the electric field based on its redistribution in tectonically and technogenically disturbed geological structures. The result is the identification of places of development of tectonic discontinuities and watered zones, information about which makes it possible to predict, along with the seismicity of the rock mass inside the tunnel, possible places of potential collapse and flooding during the design, construction and subsequent operation of tunnel crossings. A significant achievement of the experiments can be attributed to the identification of the possibility of electroprobing the flysch strata with steeply-and obliquely-lying layers by dipole electric exploration installations. The proof is that the growth of the right branches of the probing curves does not exceed 45°. Consequently, the steeply-and obliquely-lying flysch strata can be considered heterogeneous laterally and quasihomogeneous in depth in terms of electrical properties.

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Cho, Yunkoo, Young Jae Han, Jumi Hwang, Jiwon Yu, Sangbaek Kim, Chulung Lee, Sugil Lee, and Kyung Pyo Yi. "Identifying Technology Opportunities for Electric Motors of Railway Vehicles with Patent Analysis." Sustainability 13, no. 5 (February 24, 2021): 2424. http://dx.doi.org/10.3390/su13052424.

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An electric motor is a device that changes electrical energy into mechanical energy for railway vehicles. When developing the electric motor, it used to be developed simply for structures or control methods of the motor itself without considering convergence with other devices or technologies. However, as the railway vehicles become more advanced, technology development through convergence with other devices or technologies is spreading. Therefore, based on patent data related to the electric motors applied to the railway vehicles, this research aims to carry out technical forecasting for establishing research and development (R and D) direction for new technologies by predicting vacant technologies from the point of view of technology convergence. In other words, we studied how to find the vacant technologies in a field of convergence technology for the electric motor of the railway vehicles by analyzing the patent data. More specifically, we search the patents data associated with the electric motor of the railway vehicle that contain multiple IPC codes, and use multiple IPC codes to determine the field of convergence technology. In addition, we extract keywords from the patents data related to each of the determined convergence technologies and define the vacant technologies by interpreting the field of convergence technology and the extracted keywords.

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SOLER, Urszula. "Oswajanie z technologią. Na przykładzie elektryfikacji Wielkiej Brytanii i technologii 5G." PRZEGLĄD ELEKTROTECHNICZNY 1, no. 12 (December 5, 2019): 99–102. http://dx.doi.org/10.15199/48.2019.12.19.

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Larina, Tatiana V. "Notarization of Electronic Transactions: Digital Technologies." Revista Gestão Inovação e Tecnologias 11, no. 3 (June 30, 2021): 2089–97. http://dx.doi.org/10.47059/revistageintec.v11i3.2075.

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Yenikieiev, O. F., and L. N. Shcherbak. "INFORMATION TECHNOLOGY FOR PROTECTING DIESEL-ELECTRIC STATION RELIABLE OPERATION." Tekhnichna Elektrodynamika 2019, no. 4 (June 5, 2019): 85–91. http://dx.doi.org/10.15407/techned2019.04.085.

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Afonso, Joao L., Mohamed Tanta, José Gabriel Oliveira Pinto, Luis F. C. Monteiro, Luis Machado, Tiago J. C. Sousa, and Vitor Monteiro. "A Review on Power Electronics Technologies for Power Quality Improvement." Energies 14, no. 24 (December 20, 2021): 8585. http://dx.doi.org/10.3390/en14248585.

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Nowadays, new challenges arise relating to the compensation of power quality problems, where the introduction of innovative solutions based on power electronics is of paramount importance. The evolution from conventional electrical power grids to smart grids requires the use of a large number of power electronics converters, indispensable for the integration of key technologies, such as renewable energies, electric mobility and energy storage systems, which adds importance to power quality issues. Addressing these topics, this paper presents an extensive review on power electronics technologies applied to power quality improvement, highlighting, and explaining the main phenomena associated with the occurrence of power quality problems in smart grids, their cause and effects for different activity sectors, and the main power electronics topologies for each technological solution. More specifically, the paper presents a review and classification of the main power quality problems and the respective context with the standards, a review of power quality problems related to the power production from renewables, the contextualization with solid-state transformers, electric mobility and electrical railway systems, a review of power electronics solutions to compensate the main power quality problems, as well as power electronics solutions to guarantee high levels of power quality. Relevant experimental results and exemplificative developed power electronics prototypes are also presented throughout the paper.

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Bocii, Liviu Sevastian, Luigi Pio Di Noia, and Renato Rizzo. "Optimization of the Energy Storage of Series-Hybrid Propelled Aircraft by Means of Integer Differential Evolution." Aerospace 6, no. 5 (May 23, 2019): 59. http://dx.doi.org/10.3390/aerospace6050059.

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The possibility of realizing full electric or hybrid electric propulsion for aircraft has been considered due to the constant growth in the use of electric technologies in aircraft and the availability of high-power-density electrical machines and converters. In this paper, an optimized design approach is proposed with reference to the optimal trade-off between energy storage system sizing and the fuel mass of a series of hybrid aircraft. The problem is approached using an integer optimization algorithm based on differential evolution and by mixing both the flight mechanics and the electrical issues inherent to hybrid flights. This method has been validated by means of implementing numerical simulations and the results are reported and discussed in the paper.

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Tiwari, Divya, Jill Miscandlon, Ashutosh Tiwari, and Geraint W. Jewell. "A Review of Circular Economy Research for Electric Motors and the Role of Industry 4.0 Technologies." Sustainability 13, no. 17 (August 27, 2021): 9668. http://dx.doi.org/10.3390/su13179668.

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The market for electric motors is experiencing a step-growth due to their adoption across a range of industrial sectors. This increased demand also highlights the importance of end-of-life management of electric motors and a requirement for appropriate strategies for the high value materials embedded in them. This paper aims to offer a holistic view on the circular economy research for electric motors and the role of Industry 4.0 technologies by presenting the state-of-the-art available in literature and comparing it with the industrial perspective. The literature review revealed the absence of a methodology for selecting the best end-of-life scenario for industrial electric motors. Recycling, which is an end-of-product-life strategy, was found to be the key focus area of research. Reuse, which is a better strategy in terms of waste hierarchy, was the least researched area due to lack of information about the condition and availability of returned products. In order to capture the current landscape within the UK for the repair, remanufacture and recycling of electrical machines, a structured survey of UK based companies was conducted. The survey revealed that nearly half of the companies do not undertake any repair strategies for electrical machine components; however, there was an aspiration from the respondents to migrate their companies towards more sustainable activities. The industry survey and the review of existing literature led to the identification of research trends, challenges and recommendations for future research.

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Vera Vera, Anthony, Ney Balderramo Vélez, Gabriel Pico Mera, Eliece Rodríguez Indarte, and Marcos Lenin Dávila Cedeño. "Realidad actual del sector eléctrico ecuatoriano." Revista de Investigaciones en Energía, Medio Ambiente y Tecnología: RIEMAT ISSN: 2588-0721 4, no. 1 (July 19, 2019): 6. http://dx.doi.org/10.33936/riemat.v4i1.1939.

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The present work has as objective to make an approximation to the description of the Ecuadorian electrical sector, in its beginnings of creation and conformation until its current reality, to contextualize the Ecuadorian electric panorama. In this sector, it will modernize according to new technological trends that seek to optimize the use of natural resources to provide electric power service with the responsibility and regulations required for the care of the environment. Index Terms— electric market, economic deficit, electricity generation, new technologies.

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Vovchenko, А. I., L. Yu Demydenko, S. S. Kozyrev, and L. E. Ovchinnikova. "High Voltage Electrochemical Explosion in Pulse-Discharge Technologies." Elektronnaya Obrabotka Materialov 58, no. 1 (February 2022): 85–92. http://dx.doi.org/10.52577/eom.2022.58.1.85.

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The analysis and generalization of the results of studies of high-voltage electrochemical explosions (HVECHE) proceeding under various conditions, driven by special aspects and needs of the existing HVECHE based pulse-discharge technologies, was carried out. A methodology to calculate combined energy sources is proposed in relation to the needs of various discharge-pulse technologies using a high-voltage electrochemical explosion. Based on the analysis of the results of experimental studies, the advantage of using a high-voltage electrochemical explosion with a controlled input of electrical energy into the discharge channel was substantiated. An algorithm was developed to calculate the parameters of a combined electric-discharge source of a controlled HVECHE and the required mass of the exothermic composition which provides the energy characteristics specified by a specific discharge-pulse technology. The results of testing the developed calculation algorithm are presented confirming the possibility of its use for engineering calculations of combined power sources with a controlled input of electrical energy into the discharge channel.

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Yashchenko, Sergey, and Dmitry Luchko. "The dependence of the air permeability of glass-mica tapes on the technology of production." Energy Systems 7, no. 3 (December 20, 2022): 63–69. http://dx.doi.org/10.34031/es.2022.3.007.

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The main part of technological processes in almost all industries, including those related to transportation, processing of mineral raw materials, cannot be implemented without the use of electric motors. The high reliability of these machines ensures trouble-free operation and guarantees the safety of people in these industries. The reliability indicators of electric machines depend on the insulation condition of the windings, which is largely determined by the saturation of the winding cavities with the impregnating compound that penetrated them during impregnation. Various manufacturing technologies of mica-containing electrical insulating tapes used as case insulation of coils of traction electric motors (TED) are considered. The main reasons for the failure of traction engines are presented. The existing types of insulation, their possible composition, features and applications are described. A brief description of the main methods of manufacturing electrical insulating mica-containing tapes is given, an assessment of the strengths and weaknesses of each of the technologies are presented. The methods of testing the initial semi-finished tapes and finished insulation are described.

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Bracco, Stefano, Federico Delfino, Michela Longo, and Silvia Siri. "Electric Vehicles and Storage Systems Integrated within a Sustainable Urban District Fed by Solar Energy." Journal of Advanced Transportation 2019 (December 12, 2019): 1–19. http://dx.doi.org/10.1155/2019/9572746.

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In this paper, an optimization model is defined for the design of a smart energy infrastructure integrating different technologies to satisfy the electrical demand of a given site. The considered smart energy infrastructure includes a photovoltaic plant, electrical storage systems, electric vehicles (EVs), and charging stations. The objective function of the optimization model considers the costs related to the installation and maintenance of the considered technologies, as well as the costs associated with the energy exchanges with the external grid. A very extensive numerical analysis is reported in the paper, referred to a test case in a real site in Liguria Region, in the north of Italy. Many scenarios are analyzed and discussed, with specific attention to evaluate the role of electric mobility within a smart energy infrastructure and a focus on EVs acting as mobile storage systems.

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Ivanov, V. I. "Electric spark technologies and equipment." Sel'skohozjajstvennaja tehnika: obsluzhivanie i remont (Agricultural Machinery: Service and Repair), no. 4 (April 1, 2020): 20–34. http://dx.doi.org/10.33920/sel-10-2004-03.

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This article provides information on the application of electric-processing method for metallic materials and equipment for hardening and recovery of parts and tools in modern conditions, trends in the development of this method of metal plating.

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Khersonsky, Yuri, Narain Hingorani, and Kevin Peterson. "IEEE Electric Ship Technologies Initiative." IEEE Industry Applications Magazine 17, no. 1 (January 2011): 65–73. http://dx.doi.org/10.1109/mias.2010.939429.

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Willey, Tara, and Steve Hester. "Solar Electric Technologies and Applications." Cogeneration & Distributed Generation Journal 18, no. 2 (May 1, 2003): 37–47. http://dx.doi.org/10.1080/10668680309509017.

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37

Sharma, N., J. P. Bird, Ch Binek, P. A. Dowben, D. Nikonov, and A. Marshall. "Evolving magneto-electric device technologies." Semiconductor Science and Technology 35, no. 7 (June 18, 2020): 073001. http://dx.doi.org/10.1088/1361-6641/ab8438.

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Sharma, Snigdha, Amrish K. Panwar, and M. M. Tripathi. "Storage technologies for electric vehicles." Journal of Traffic and Transportation Engineering (English Edition) 7, no. 3 (June 2020): 340–61. http://dx.doi.org/10.1016/j.jtte.2020.04.004.

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39

Zhu, Shi Shun, Jing Li, Sun Yan, and Su Jun Luo. "Research on Main Performance of the Vehicle-Mounted Generator System under Variable Speed Condition." Advanced Materials Research 791-793 (September 2013): 790–94. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.790.

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Vehicle-mounted shaft generator system with constant frequency and voltage under variable speed condition can adapt to a large speed range of working condition while the vehicle is moving. Its key technologies are a process of rectification-inversion and a composite staggered parallel DC converter. Test research shows that electrical performance of the shaft generator system meets the first kind electric power plant requirements according to GJB 5785-2006 of China, which indicates that the shaft generator system can provide uninterrupted high quality electric power to current general on-board electrical equipment on vehicles under all speed conditions.

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Schasny, V. P., and A. I. Zhukouski. "Electromagnetic Compatibility of Compensating Devices and Converters of an Adjustable Electric Drive in Electrical Networks of Industrial Enterprises." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 65, no. 1 (February 2, 2022): 37–51. http://dx.doi.org/10.21122/1029-7448-2022-65-1-37-51.

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The problems of reactive power compensation and improving the quality of electrical energy in the power supply systems of industrial enterprises are inseparable. Their relevance is due to the widespread use of electric receivers that consume reactive power and distort the quality of electrical energy in the network, as well as the implementation of new technologies, systems and equipment into production that make increased demands on the quality of electrical energy consumed. An important characteristic of the quality of electrical energy rationed by GOST 32144–2013 is the non-sinusoidal voltage. The main reason for the non-sinusoidal voltage in the electrical networks of industrial enterprises is the use of electrical equipment with a nonlinear voltage characteristic, which is a source of conductive electromagnetic interference, in particular: adjustable DC and AC electric drives, uninterruptible power supplies of electric receivers, electric welding equipment, electric arc furnaces, induction heating installations, gas-discharge radiation sources. Due to the nonlinearity of the current-voltage characteristics, the above devices consume a non-sinusoidal current from the network, which causes harmonic distortion of the supply voltage, including the fundamental harmonic component and higher harmonic components that are multiples of the fundamental frequency. Non-sinusoidal voltage, in turn, causes additional losses of power and energy in the elements of the electrical network, causes overheating and accelerated aging of the insulation of electrical equipment, reducing its operational reliability and reducing service life, worsens the accuracy of electrical measurements, causes malfunctions in automation systems, telemechanics, relay protection, electronic systems and communications. Non-sinusoidal voltage significantly complicates the compensation of reactive power in the electrical network. Compensating devices are made on the basis of capacitors, whose electrical parameters (resistance, power, current) depend on both the magnitude of the supply voltage and its harmonic composition. The present article identifies problems and proposes solutions in terms of reactive power compensation and improving the quality of electrical energy in electrical networks containing thyristor voltage converters and frequency converters used in adjustable electric drive installations of industrial enterprises.

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41

Nagy, Andras. "Electric aircraft - present and future." Production Engineering Archives 23, no. 23 (June 1, 2019): 36–40. http://dx.doi.org/10.30657/pea.2019.23.06.

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Abstract In this paper, an outlook about the present of electrical aviation is given. The relatively small energy density of current battery technologies is adequate to build usable electric car, but not suitable for electric aircraft. Because of the very limited amount of energy available on-board, a couple of percent in efficiency can give significant increase in range and flight time, hence the development of more efficient propulsion system and E-motor is as important as the development of battery technologies. Current research results at the University of Dunaujvaros show, that building E-motors from amorphous materials is possible, and can easily increase the efficiency of high speed E-motors.

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42

Farhani, Riham, Yassin El Hillali, Atika Rivenq, Yahia Boughaleb, and Abdelowahed Hajjaji. "Assignment Approach for Electric Vehicle Charging Using Traffic Data Collected by SUMO." World Electric Vehicle Journal 14, no. 2 (February 3, 2023): 40. http://dx.doi.org/10.3390/wevj14020040.

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Consumption habits are changing due to the development of new technologies around renewable energy, environmental awareness, and new incentive policies. Smart grids are seen as an effective way to accommodate more renewable energy, achieve better control of demand, and improve the operating conditions of the electrical system. However, electric vehicles, which are an environmentally friendly alternative, have very high market penetration and require efficient electrical management at charging stations. Among the factors that have a significant impact on electrical energy consumption are traffic conditions, which can seriously impact the efficiency of electric vehicles. Therefore, the focus is on developing charging infrastructure and reducing vehicle waiting time by optimally allocating electric vehicles to charging stations. To this end, an optimization approach is presented, based on the traffic conditions collected by the SUMO simulator. This approach enables each vehicle to be assigned to the appropriate station while maintaining its battery state of charge at a higher level.

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43

Rasulov, D. N., and R. V. Sobirov. "MACHINE AUTOMATION SYSTEMS FOR TOP ORIENTED TECHNOLOGIES." RUSSIAN ELECTRONIC SCIENTIFIC JOURNAL 36, no. 2 (May 11, 2020): 110–20. http://dx.doi.org/10.31563/2308-9644-2020-36-2-110-120.

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For the implementation of top-oriented agricultural Technologies, machines are used whose control systems have devices for automatically determining their location. These devices are based on the use of GPS (global positioning system) systems with corresponding geo-information software products (GlS packages) and signals in network satellite radio navigation systems (CCPHC). With their automatic location detection systems, in principle, they can be based on the use of open-access navigation signals (HC) of any SSRNS or on the simultaneous use of signals from both systems. For most ous, the most common type of auxiliary energy is electric. Therefore, the next step in the design of automation systems will be the development of basic electrical circuits. Then, after selecting (ordering) the necessary hardware, they develop connection and connection schemes and design replacement devices.

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Stesina, Fabrizio. "Validation of a Test Platform to Qualify Miniaturized Electric Propulsion Systems." Aerospace 6, no. 9 (September 4, 2019): 99. http://dx.doi.org/10.3390/aerospace6090099.

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Miniaturized electric propulsion systems are one of the main technologies that could increase interest in CubeSats for future space missions. However, the integration of miniaturized propulsion systems in modern CubeSat platforms presents some issues due to the mutual interactions in terms of power consumption, chemical contamination and generated thermal and electro-magnetic environments. The present paper deals with the validation of a flexible test platform to assess the interaction of propulsion systems with CubeSat-technologies from mechanical, electrical, magnetic, and chemical perspectives. The test platform is a 6U CubeSat hosting an electric propulsion system and able to manage a variety of electric propulsion systems. The platform can regulate and distribute electric power (up to 60 W), exchange data according to several protocols (e.g., CAN bus, UART, I2C, SPI), and provide different mechanical layouts in 4U box completely dedicated to the propulsion system. Moreover, the data gathered by the onboard sensors are combined with the data from external devices and tools providing unprecedented information about the mutual behavior of a CubeSat platform and an electric propulsion system.

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Chiriac, Rareș-Lucian, Anghel Chiru, Răzvan Gabriel Boboc, and Ulf Kurella. "Advanced Engine Technologies for Turbochargers Solutions." Applied Sciences 11, no. 21 (October 27, 2021): 10075. http://dx.doi.org/10.3390/app112110075.

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Research in the process of internal combustion engines shows that their efficiency can be increased through several technical and functional solutions. One of these is turbocharging. For certain engine operating modes, the available energy of the turbine can also be used to drive an electricity generator. The purpose of this paper is to highlight the possibilities and limitations of this solution. For this purpose, several investigations were carried out in the virtual environment with the AMESim program, as well as experimental research on a diesel engine for automobiles and on a stand for testing turbochargers (Turbo Test Pro produced by CIMAT). The article also includes a comparative study between the power and torque of the naturally aspirated internal combustion engine and equipped with a hybrid turbocharger. The results showed that the turbocharger has a very high operating potential and can be coupled with a generator without decreasing the efficiency of the turbocharger or the internal combustion engine. The main result was the generation of electrical power of 115 W at a turbocharger shaft speed of 140,000–160,000 rpm with an electric generator shaft speed of 14,000–16,000 rpm. There are many constructive solutions for electrical turbochargers with the generator positioned between the compressor and the turbine wheel. This paper is presenting a solution of a hybrid turbocharger with the generator positioned and coupled with the compressor wheel on the exterior side.

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Wan-Ye, Yao, Sun Teng-Zhong, and Jiang Xue-Li. "The Design and Implement of Electrical Operator Monitoring System." International Journal of Advanced Pervasive and Ubiquitous Computing 5, no. 3 (July 2013): 60–65. http://dx.doi.org/10.4018/ijapuc.2013070106.

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Since the traditional electrical system data monitor equipment has some shortage, such as limited monitoring objects, single monitoring direction, the authors combine computer science Internet technologies with electric power system production process and extend the scope of monitoring system. This paper analyzes the key technology by which the operator monitoring system can be realized, and puts forward the scheme, which based on.NET platform, of recording operator’s behaviors during electric power generation, and it is implemented in WINDOWS system.

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Savina, N. V., I. A. Lisogurskiy, and L. N. Lisogurskaya. "Selection of circuit and technical solutions for improvement the quality of electricity in adaptive networks with traction AC power." Power engineering: research, equipment, technology 24, no. 3 (June 12, 2022): 42–54. http://dx.doi.org/10.30724/1998-9903-2022-24-3-42-54.

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THE PURPOSE. Analysis of existing circuit and technical solutions for improving the quality of electricity in networks with traction load and assessment of their compliance with new properties of the electric network when switching to an active adaptive platform. Determination of the features of the operation of electric networks with traction load during the transition to an active-adaptive platform. Review of existing technical means and circuit solutions for improving the quality of electricity in electric networks with traction load and their analysis for compliance with new properties of the electric network.METHODS. To solve the tasks set, a structural analysis of existing technical and circuit solutions was performed to improve the quality of electricity in electric networks with traction load.RESULTS. In this article, the systematization of the compliance of technical means with the solved problems in the field of electricity quality is carried out. The features of the operation of electric networks with traction load during the transition to an active-adaptive platform are determined. Modern technical means and circuit solutions corresponding to the new properties of the electrical network are revealed. A variant of combining technologies for a complex effect on the quality of electricity is proposed.CONCLUSION. When switching electric networks with traction load to an active adaptive platform in order to improve the quality of electricity, it is advisable to use technical means capable of providing PCE within acceptable limits in real time, depending on the operating modes of the power system and traction load. Such means include distributed generation, electric energy storage, active filter-compensating and balancing devices, FACTS technologies of the second generation. Classical approaches to solving problems with the quality of electrical energy based on the use of passive technical devices do not correspond to the new properties of active-adaptive networks with alternating current traction.

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S.Mahima, S. Mahima. "Environmentally Sound Electronic Waste Treatment Technologies - An Analysis." Global Journal For Research Analysis 3, no. 5 (June 15, 2012): 21–24. http://dx.doi.org/10.15373/22778160/may2014/9.

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Rustamxojaevna, Kalmuratova Khurlikha, and Turumbetova Zamira Yusupbayevna. "ELECTRONIC AND DISTANCE LEARNING TECHNOLOGIES IN HIGHER EDUCATION." International Journal of Pedagogics 03, no. 02 (February 1, 2023): 14–18. http://dx.doi.org/10.37547/ijp/volume03issue01-04.

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The article discusses the basic concepts (electronic training, distance learning), types of information technologies that can be used in a professional educational organization and stages of development of electronic training, and distance learning technology. An analysis of software requirements for the organization of electronic training is carried out.

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Naumov, Igor V., Sergey V. Podyachikh, and Andrey V. Bastron. "The Power Quality Improving and its Losses Reducing with Balancing Devices." IOP Conference Series: Earth and Environmental Science 979, no. 1 (February 1, 2022): 012160. http://dx.doi.org/10.1088/1755-1315/979/1/012160.

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Abstract The method, algorithms, modeling, calculations and analysis the 0.38 kV electric network operation with unbalancing power consumption are considered. It is noted that the 0.38 kV electric networks, being electric low observability networks, are largely characterized by low power quality, which is accompanied by additional losses. An electric network model with a distributed load is presented. The current and voltage asymmetry indicators calculating method is developed, and the specialized balancing device parameters are determined. Bas ed on the obtained expressions, using Matlab technologies, the calculating asymmetric modes program was developed. The studied indicators were calculated for the created electric network model with symmetric and asymmetric loads. The balancing device influence degree on the quality indicators stabilization and the electrical energy additional losses reduction is established.

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