Artigos de revistas: "Electric power systems"

1

Hong, Ying-Yi. "Electric Power Systems Research". Energies 9, n.º 10 (15 de outubro de 2016): 824. http://dx.doi.org/10.3390/en9100824.

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Haden, C. R. "Superconducting electric power systems". Electric Power Systems Research 17, n.º 1 (julho de 1989): 2–3. http://dx.doi.org/10.1016/0378-7796(89)90052-7.

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Egorov, Alexander, Paul Bannih, Denis Baltin, Alexander Kazantsev, Anton Trembach, Elizabeth Koksharova, Victor Kunshin, Natalia Zhavrid e Olga Vozisova. "Electric Power Systems Kit". Advanced Materials Research 1008-1009 (agosto de 2014): 1166–70. http://dx.doi.org/10.4028/www.scientific.net/amr.1008-1009.1166.

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This article describes the problem of practical knowledge lack in modern education system and gives the solution of the problem by creating the laboratory for the scale models production. This laboratory allows to create all 110 kV, 220 kV and 500 kV power equipment in all generally accepted scales. Low price of such scale models makes the product available for students of any educational institutions.

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Sen’kov, A. P., B. F. Dmitriev, A. N. Kalmykov e L. N. Tokarev. "Ship unified electric-power systems". Russian Electrical Engineering 88, n.º 5 (maio de 2017): 253–58. http://dx.doi.org/10.3103/s1068371217050108.

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Дорошенко, Олександр Іванович. "Modeling of electric power systems". Technology audit and production reserves 5, n.º 3(19) (2 de outubro de 2014): 4. http://dx.doi.org/10.15587/2312-8372.2014.27920.

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Hammond, P. "Electric Machines and Power Systems". Electronics and Power 32, n.º 2 (1986): 171. http://dx.doi.org/10.1049/ep.1986.0099.

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Mahmoud*, Magdi S., e ABdulla Ismail. "Control of electric power systems". Systems Analysis Modelling Simulation 43, n.º 12 (dezembro de 2003): 1639–73. http://dx.doi.org/10.1080/02329290310001593001.

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Wiszniewski, A., e T. Lobos. "Editorial: Modern electric power systems". IEE Proceedings - Generation, Transmission and Distribution 151, n.º 2 (2004): 239. http://dx.doi.org/10.1049/ip-gtd:20040285.

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9

Kahle, Trish. "Electric Discipline: Gendering Power and Defining Work in Electric Power Systems". Labor 21, n.º 1 (1 de março de 2024): 79–97. http://dx.doi.org/10.1215/15476715-10948947.

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Abstract In the 1970s, energy conservation was a household idea, but it was also a form of labor discipline. This article shows how one utility, the Pennsylvania Power & Light Company (PP&L), used energy conservation to discipline unwaged workers in the home, upending decades of home economics research that sought to substitute electric energy for human energy in housework. To effectively deploy this strategy, PP&L drew on utilities’ well-established understanding of women's unwaged work in the home as central to balancing the rhythms of power demand. By exploring this history, this article also argues that by adopting a more expansive understanding of labor in energy systems—which I term “energy work”—we can better understand the interrelationship of labor, gender, and power in the operation of energy systems and more fully incorporate the history of unwaged workers into the history of energy.

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10

Malkin, Peter, e Meletios Pagonis. "Superconducting electric power systems for hybrid electric aircraft". Aircraft Engineering and Aerospace Technology 86, n.º 6 (30 de setembro de 2014): 515–18. http://dx.doi.org/10.1108/aeat-05-2014-0065.

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Kondryakov, A. D., e M. K. Leontiev. "Aircraft electric power plants". VESTNIK of Samara University. Aerospace and Mechanical Engineering 23, n.º 2 (10 de julho de 2024): 49–61. http://dx.doi.org/10.18287/2541-7533-2024-23-2-49-61.

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The paper presents a review of electrification of the existing propulsion systems and creating new hybrid propulsion systems based on the concept of more electric aircraft and all-electric aircraft in Russia and abroad. New promising directions of electrification of the existing aircraft propulsion systems and creating new hybrid aircraft propulsion systems are specified on the basis of the review.

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12

M. O. Kostin. "REACTIVE POWER DEVICES IN SYSTEMS OF ELECTRIC TRACTION". Science and Transport Progress, n.º 34 (25 de outubro de 2010): 73–76. http://dx.doi.org/10.15802/stp2010/8903.

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A comparative characteristic of different concepts and expressions for determination of reactive power in the circuits with non-sinusoidal electric values has been given. For the first Ukrainian electric locomotives of DE1 type with the system of DC electric traction, the values of reactive power after Budeany, Fryze, and also the differential, integral and generalized reactive powers have been determined. Some measures on reducing its consumption by the DC electric rolling stock have been suggested.

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13

Zhou, E. Z. "Power oscillation flow study of electric power systems". International Journal of Electrical Power & Energy Systems 17, n.º 2 (abril de 1995): 143–50. http://dx.doi.org/10.1016/0142-0615(95)91411-c.

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14

Matsumoto, Satoshi, e Masayuki Hikita. "Electric Power Demand and Emerging Technology in Highly-sophisticated Electric Power Systems". IEEJ Transactions on Fundamentals and Materials 124, n.º 7 (2004): 529–33. http://dx.doi.org/10.1541/ieejfms.124.529.

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15

Csizmadia, Miklos, e Miklos Kuczmann. "Power Semiconductor Trends in Electric Drive Systems". Acta Technica Jaurinensis 12, n.º 1 (22 de fevereiro de 2019): 13–25. http://dx.doi.org/10.14513/actatechjaur.v12.n1.488.

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Nowadays lots of big brands (like Tesla, Nissan, Audi etc.) deal with electric cars and electric drive systems. The first brand deals with only electric drive systems and everyone know this name. These cars are more environmentally friendly, because those operate only with electric energy (this article does not deal with the source of electric energy). The design of electric drive systems is very difficult and complicated task: the electric, thermal and mechanical parameters are very important during the design process. The task is given: it must be designed to reach the most efficient drive system with a low cost. This article deals with the current semiconductor trends and properties, investigates the current electric car drive systems (semiconductor design perspective) and deals with the future trends.

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16

Kalimoldayev, M., M. Jenaliyev, A. Abdildayeva, T. Zhukabayeva e M. Akhmetzhanov. "OPTIMAL CONTROL OF POWER SYSTEMS". PHYSICO-MATHEMATICAL SERIES 5, n.º 333 (15 de outubro de 2020): 86–94. http://dx.doi.org/10.32014/2020.2518-1726.86.

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This article discusses the study of problems of optimal control for electric power systems. The numerical solution of optimal control problems for complex electric power systems using an iterative algorithm is shown. Also considered are issues of solving the optimal control of a nonlinear system of ordinary differential equations in two different cases. The proposed solution methods follow the principle of continuation of extremal problems based on sufficient conditions for optimality of V. F. Krotov. A special case of optimal control problems is considered. Numerical experiments showed sufficient efficiency of the implemented algorithms. The problem of optimal motion control of a two-system electric power system is graphically illustrated in the proposed numerical example.

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17

Tarasov, V. A., A. B. Petrochenkov e B. V. Kavalerov. "Simulation of Complex Electric Power Systems". Russian Electrical Engineering 89, n.º 11 (novembro de 2018): 664–69. http://dx.doi.org/10.3103/s1068371218110123.

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18

LUBOSNY, Zbigniew. "Virtual Inertia in Electric Power Systems". AUTOMATYKA, ELEKTRYKA, ZAKLOCENIA 11, n.º 1(39)2020 (31 de março de 2020): 8–13. http://dx.doi.org/10.17274/aez.2020.39.01.

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19

Brandhorst, Henry W., P. R. K. Chetty, M. J. Doherty e Gary L. Bennett. "Technologies for spacecraft electric power systems". Journal of Propulsion and Power 12, n.º 5 (setembro de 1996): 819–27. http://dx.doi.org/10.2514/3.24109.

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Ota, Yutaka. "Electric Vehicle Integration into Power Systems". IEEJ Transactions on Power and Energy 138, n.º 9 (1 de setembro de 2018): 753–56. http://dx.doi.org/10.1541/ieejpes.138.753.

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21

Tsitsikyan, G. "Evolution of marine electric power systems". Transactions of the Krylov State Research Centre 1, n.º 387 (11 de fevereiro de 2019): 123–30. http://dx.doi.org/10.24937/2542-2324-2019-1-387-123-130.

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22

Johns, A. T. "Probability Concepts in Electric Power Systems". Power Engineering Journal 6, n.º 1 (1992): 41. http://dx.doi.org/10.1049/pe:19920007.

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23

Ohler, C. "The physics of electric power systems". EPJ Web of Conferences 54 (2013): 01008. http://dx.doi.org/10.1051/epjconf/20135401008.

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24

Hingorani, Narain G. "Future Opportunities for Electric Power Systems". IEEE Power Engineering Review PER-7, n.º 10 (outubro de 1987): 4–5. http://dx.doi.org/10.1109/mper.1987.5526707.

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25

Romero, Natalia, Linda K. Nozick, Ian Dobson, Ningxiong Xu e Dean A. Jones. "Seismic Retrofit for Electric Power Systems". Earthquake Spectra 31, n.º 2 (maio de 2015): 1157–76. http://dx.doi.org/10.1193/052112eqs193m.

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This paper develops a two-stage stochastic program and solution procedure to optimize the selection of seismic retrofit strategies to increase the resilience of electric power systems against earthquake hazards. The model explicitly considers the range of earthquake events that are possible and, for each, an approximation of the distribution of damage experienced. This is important because electric power systems are spatially distributed and so their performance is driven by the distribution of component damage. We test this solution procedure against the nonlinear integer solver in LINGO 13 and apply the formulation and solution strategy to the Eastern Interconnection, where seismic hazard stems from the New Madrid seismic zone.

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26

Ibrahim, Emad S. "Corrosion Control in Electric Power Systems". Electric Machines & Power Systems 27, n.º 8 (julho de 1999): 795–811. http://dx.doi.org/10.1080/073135699268858.

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27

Dracker, Raymond, e Pascal De Laquil III. "PROGRESS COMMERCIALIZING SOLAR-ELECTRIC POWER SYSTEMS". Annual Review of Energy and the Environment 21, n.º 1 (novembro de 1996): 371–402. http://dx.doi.org/10.1146/annurev.energy.21.1.371.

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28

Phadke, Arun G. "Hidden failures in electric power systems". International Journal of Critical Infrastructures 1, n.º 1 (2004): 64. http://dx.doi.org/10.1504/ijcis.2004.003796.

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Ibrahim, Emad S. "Corrosion control in electric power systems". Electric Power Systems Research 52, n.º 1 (outubro de 1999): 9–17. http://dx.doi.org/10.1016/s0378-7796(98)00133-3.

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30

Novotny, Miroslav, Vojtech Vesely, Dusan Mudroncik e Jan Murgas. "Emergency control of electric power systems". Electric Power Systems Research 22, n.º 1 (setembro de 1991): 13–18. http://dx.doi.org/10.1016/0378-7796(91)90074-w.

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31

DeLaquil, Pascal. "Progress commercializing solar-electric power systems". Renewable Energy 8, n.º 1-4 (maio de 1996): 489–94. http://dx.doi.org/10.1016/0960-1481(96)88905-1.

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32

Shea, J. J. "Vehicular electric power systems [book review]". IEEE Electrical Insulation Magazine 21, n.º 5 (setembro de 2005): 48. http://dx.doi.org/10.1109/mei.2005.1513438.

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33

Ota, Yutaka. "Electric vehicle integration into power systems". Electrical Engineering in Japan 207, n.º 4 (junho de 2019): 3–7. http://dx.doi.org/10.1002/eej.23168.

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34

Popović, Vlado, Borut Jereb, Milorad Kilibarda, Milan Andrejić, Abolfazl Keshavarzsaleh e Dejan Dragan. "Electric Vehicles as Electricity Storages in Electric Power Systems". Logistics & Sustainable Transport 9, n.º 2 (1 de outubro de 2018): 57–72. http://dx.doi.org/10.2478/jlst-2018-0010.

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Abstract Improvements in battery technology make electric vehicles more and more suitable for the use as electricity storages. Many benefits could be achieved by using electric vehicles for storing electricity in their batteries. This paper talks about the idea of electric vehicles as electricity storages in electric power systems. The idea has a great number of supporters, but also a significant part of the professional community believes that is unfeasible. This paper is not classified in either side and strives to give a realistic picture of this idea. For this purpose, findings from papers published in scientific journals are mainly used. There is also some information from websites, mainly for some technical issues. Partly, the opinions of the authors are present. Specificities of EVs and EPSs that enabled the birth of this idea are explained along with proposed concepts through which the idea can be implemented. Keeping with the vehicle to grid concept, issues about the implementation of the idea are considered. Achievements in the practical realization of the idea are also presented.

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35

Perzhabinsky, Sergey, e Valery Zorkaltsev. "Model for Power Shortage Estimation in Electric Power Systems". International Journal of Energy Optimization and Engineering 1, n.º 4 (outubro de 2012): 70–88. http://dx.doi.org/10.4018/ijeoe.2012100105.

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This paper addresses the model for power shortage estimation in electric power systems. The model’s main component of methodology for analysis of electric power system (EPS) reliability that has been developed at the Energy Systems Institute, Siberian Branch of Russian Academy Sciences. The methodology is based on the Monte-Carlo method. Quality and implementation time of reliability analysis depend on realization of the model. The model is implemented in the computational software for electric power systems reliability analysis. The history of evolution of the model for power shortage estimation and mathematical properties of the model are discussed. The results of the state-of-the-art studies of the model for power shortage estimation in EPS are presented. The model for power shortage estimation in EPS with quadratic power losses in power lines is considered. Algorithms of the interior point method with quadratic approximations of constraints applied for realization of the model are discussed. Results of experimental studies of the algorithms are presented.

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36

Pham, Xuan Mai, Ga Van Bui, Ha Pham e Le Hoang Phu Pham. "Design Process of Electric Vehicle Power System". Applied Mechanics and Materials 907 (22 de junho de 2022): 101–14. http://dx.doi.org/10.4028/p-vkvz26.

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This paper presents the research on the process of designing and optimizing the powertrain of electric vehicles, such as the general arrangement of electric vehicles, the design of electric motors, transmission systems, battery systems, as well as selecting the appropriate layout design. In addition, the article analyzes the computational models of electric drive systems, energy systems and calculates the performance of these systems in accordance with actual use. Finally, design and simulation calculations of the powertrain and energy of electric vehicles are performed using Simcenter Amesim software. Keywords: Electric vehicle, battery, electric motor, Simcenter Amesim

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37

Kazanov, S. "On electric power generation issues in ship electric propulsion systems". Transactions of the Krylov State Research Centre 3, n.º 397 (6 de agosto de 2021): 83–91. http://dx.doi.org/10.24937/2542-2324-2021-3-397-83-91.

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Object and purpose of research. The object and purpose of this study is generation of electric power for electric propulsion of ship and vessels; methods and problems, state-of-the-art and trend analysis are presented. Materials and methods. The main principles and methods of electric power generation using various generating and power conversion systems are briefly discussed. Their advantages and disadvantages are identified based on publication in this field. Main results. Achievements in the modern methods of power generation for ships, as well as ways of its transformation are highlighted. A detailed analysis of the state-of-the-art and trends in ship electric power generation is given. Various options of engines and generators are considered, including advanced types. Their characteristics are thoroughly analyzed based on the international publications. Conclusion. Conclusions are formulated regarding achievements and current problems in ship electric power generation systems.

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38

Rudi, D. Yu. "The problem of quality of electric power functioning of ship electric power systems". Omsk Scientific Bulletin, n.º 159 (2018): 40–43. http://dx.doi.org/10.25206/1813-8225-2018-159-40-43.

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39

Gagarinov, I. "Structures of high-power electric propulsion systems". Transactions of the Krylov State Research Centre 1, n.º 395 (9 de março de 2021): 119–31. http://dx.doi.org/10.24937/2542-2324-2021-1-395-119-131.

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Object and purpose of research. This paper discusses structures of high-power electric propulsion systems for ships. The purpose was to give a summary of design solutions made in development of these systems. Materials and methods. This paper relies on academic and technical data, as well on the long-term author’s experience in marine electric propulsion R&Ds. The solution suggested by the author is based on the comparative analysis of design solutions adopted in the development of structures for high-power marine electric power and propulsion systems. Main results. Summary on design solutions for high-power electric propulsion systems of such ships as icebreakers, oil tankers, LNGCs and cruise liners. Conclusion. Results obtained by author were used in the design of the electric propulsion system of the «Lider» nuclear icebreaker and further could be used in design of Arctic vessels.

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40

Pillai, Jayakrishnan R., e Brigitte Bak-Jensen. "Vehicle-to-grid power in Danish electric power systems". Renewable Energy and Power Quality Journal 1, n.º 07 (abril de 2009): 250–53. http://dx.doi.org/10.24084/repqj07.315.

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41

Koval, D. O., Wilsun Xu e J. Salmon. "Power quality characteristics of rural electric secondary power systems". IEEE Transactions on Industry Applications 35, n.º 2 (1999): 332–38. http://dx.doi.org/10.1109/28.753625.

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42

Ravindranath, K. M., e M. E. El-Hawary. "Minimum loss power flow in hydrothermal electric power systems". Electric Power Systems Research 16, n.º 3 (maio de 1989): 195–208. http://dx.doi.org/10.1016/0378-7796(89)90012-6.

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43

Yu, C. W., S. H. Zhang, L. Wang e T. S. Chung. "Analysis of interruptible electric power in deregulated power systems". Electric Power Systems Research 77, n.º 5-6 (abril de 2007): 637–45. http://dx.doi.org/10.1016/j.epsr.2006.06.002.

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44

Nozari, F., e H. S. Patel. "Power electronics in electric utilities: HVDC power transmission systems". Proceedings of the IEEE 76, n.º 4 (abril de 1988): 495–506. http://dx.doi.org/10.1109/5.4434.

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45

Freitas, Luiz Carlos Gomes, Marcelo Godoy Simoes e Paulo Peixoto Praça. "Power Electronics Converters for On-Board Electric Power Systems". Energies 16, n.º 9 (28 de abril de 2023): 3771. http://dx.doi.org/10.3390/en16093771.

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46

Naumov, I. V., D. N. Karamov, A. N. Tretyakov, M. A. Yakupova e E. S. Fedorinovа. "Study of power transformer loading in rural power supply systems". Safety and Reliability of Power Industry 13, n.º 4 (18 de fevereiro de 2021): 282–89. http://dx.doi.org/10.24223/1999-5555-2020-13-4-282-289.

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The purpose of this study is to study the effect of loading power transformers (PT) in their continuous use on their energy efficiency on a real-life example of existing rural electric networks. It is noted that the vast majority of PT in rural areas have a very low load factor, which leads to an increase in specific losses of electric energy when this is transmitted to various consumers. It is planned to optimize the existing synchronized power supply systems in rural areas by creating new power supply projects in such a way as to integrate existing power sources and ensure the most efficient loading of power transformers for the subsequent transfer of these systems to isolated ones that receive power from distributed generation facilities. As an example, we use data from an electric grid company on loading power transformers in one of the districts of the Irkutsk region. Issues related to the determination of electric energy losses in rural PT at different numerical values of their load factors are considered. A computing device was developed using modern programming tools in the MATLAB system, which has been used to calculate and plot the dependence of power losses in transformers of various capacities on the actual and recommended load factors, as well as the dependence of specific losses during the transit of 1 kVA of power through a power transformer at the actual, recommended and optimal load factors. The analysis of specific losses of electric energy at the actual, recommended and optimal load factors of PT is made. Based on the analysis, the intervals of optimal load factors for different rated power of PT of rural distribution electric networks are proposed. It is noted that to increase the energy efficiency of PT, it is necessary to reduce idling losses by increasing the load of these transformers, which can be achieved by reducing the number of transformers while changing the configuration of 0.38 kV distribution networks.

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Karamov, Dmitriy, e Sergey Perzhabinsky. "Adequacy analysis of electric power systems with wind and solar power stations". E3S Web of Conferences 58 (2018): 02019. http://dx.doi.org/10.1051/e3sconf/20185802019.

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We developed a new method of adequacy analysis of electric power systems with wind and solar power stations. There are storage batteries in the electric power system. Various types of storage batteries can be used in electric power systems. They are electrochemical, hydroelectric, heat or air storages. The modelling of wind speed and solar radiation is based on software «Local analysis of environmental parameters and solar radiation». The original combination of modern models of meteorological data processing is used in the software. For adequacy analysis of electric power system, we use nonsingle estimation of electricity sacrifice in random hour. Simulation of random values is carried out by the Monte Carlo method.

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48

Babenko, Vladimir Vladimirovich, Ilya Aleksandrovich Haichenko e Yurij Vasilyevich Nefedov. "FEATURES OF REACTIVE POWER COMPENSATION IN ELECTRIC POWER NETWORKS AND SYSTEMS". National Association of Scientists 1, n.º 30(57) (10 de agosto de 2020): 48–52. http://dx.doi.org/10.31618/nas.2413-5291.2020.1.57.264.

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The article considers the conceptual issues of the specifics of optimizing the modes of electric power systems by compensating for reactive power, taking into account the voltage level. Taking into account the level of electric power quality, load change modes, specific cost of the control means and functional tasks, it is determined the algorithmic requirements for the optimization process: according to the criterion of the minimum loss of electric power in the networks and the minimum damage of specific consumers (consumer groups), respectively. The most efficient hardware based on static devices of the FACTS process platform is proposed.

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Zhang, Z. Z., G. S. Hope e O. P. Malik. "Expert Systems in Electric Power Systems a Bibliographical Survey". IEEE Power Engineering Review 9, n.º 11 (novembro de 1989): 33. http://dx.doi.org/10.1109/mper.1989.4310368.

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Zhang, Z. Z., G. S. Hope e O. P. Malik. "Expert systems in electric power systems-a bibliographical survey". IEEE Transactions on Power Systems 4, n.º 4 (1989): 1355–62. http://dx.doi.org/10.1109/59.41685.

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Artigos de revistas sobre o tema "Electric power systems"

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