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Готові списки джерел за темами / Three-phase electrical network / Статті в журналах

Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Three-phase electrical network.

Статті в журналах з теми "Three-phase electrical network"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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1

BOURI, Sihem, Tariq BOUDAOUD, and Tayeb BOUDJELAL. "PI CONTROLLER FOR CONTROLLING A THREE-PHASE INVERTER OF A PV SYSTEM CONNECTED TO THE ELECTRICAL NETWORK." Acta Electrotechnica et Informatica 21, no. 3 (2021): 11–18. http://dx.doi.org/10.15546/aeei-2021-0014.

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In order to improve the efficiency of photovoltaic panels it is necessary to introduce the technique of Maximum Power Point (the technique of the MPPT). In the literature, several strategies are mentioned, among which the perturbation and observation (P&O) algorithm. The aim of this work is to a simulation study in MATLAB of a photovoltaic panel connected to the network using DC-DC and DC-AC converters. DC Boost converter is checked by the MPPT command to adjust the output voltage of the photovoltaic panel and maximize the power produced by the photovoltaic panel. The PI controller is used

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2

Lebedka, S. M., M. V. Petrovskyi, and I. M. Diahovchenko. "DEVELOPMENT OF A MATHEMATICAL MODEL OF TRANSITIONAL PROCESSES IN THE ELECTRICAL NETWORK IN PHASE COORDINATES." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (1) (December 30, 2020): 56–60. http://dx.doi.org/10.20998/2224-0349.2020.01.08.

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Distribution electrical networks of great length are characterized by a high order of the system of equations of electromagnetic transients. To improve the efficiency of modelling such networks, it is necessary to develop formalized procedures that provide automation of both the solution and the formation of systems of equations using modern computer technology. To simplify the development of mathematical models, transformations are used to move from a real three-phase network to other coordinate systems, but this is achieved at the expense of additional restrictions. To solve the problems of

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3

TANG, S. W., L. WANG, R. J. CAI, X. H. CAI, Z. HE, and E. CHEN. "THE EVALUATION OF ELECTRICAL IMPEDANCE OF THREE-DIMENSIONAL FRACTAL NETWORKS EMBEDDED IN A CUBE." Fractals 25, no. 04 (2017): 1740005. http://dx.doi.org/10.1142/s0218348x17400059.

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This paper presents a preliminary work to evaluate the electrical impedance of three-dimensional pore fractal networks embedded in a cube. The construction and structural parameters of pore and electrical networks are illustrated in detailed. The total impedance response (modulus and phase) of networks is primarily associated with structural parameter of network, pore structure parameter of cube, conductivity of pore and solid phases. The impedance response of cube with the evolution of fractal network is analyzed comprehensively in this work. Besides, the influence of conductivity of pore pha

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4

NOVOZHILOV, Timofey A., Alexander N. NOVOZHILOV, and Dilara M. RAKHIMBERDINOVA. "Energy Expenditures in a High-Voltage Three-Phase AC Superconducting Cable." Elektrichestvo 5, no. 5 (2021): 33–38. http://dx.doi.org/10.24160/0013-5380-2021-5-33-38.

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Protection against short circuits between buses tubes in short networks of ore-thermal furnaces is provided by means of electrical insulation. Failure of the insulation leads to an arc, and then to the complete destruction of the expensive bus tube package. Disconnection fault in the elements of a short network cause overheating of undamaged elements. Currently, emergency modes of operation of a short network are determined with indirect signs. It is impossible to use current protection for this purpose because of the existing restrictions on the number of current transformers and the place fo

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5

Utyuzhnikova, Violetta, Evgenia Borisova, and Evgeny Boloev. "BALANCING OF PHASE LOADS IN LOW VOLTAGE THREE-PHASE FOUR-WIRE NETWORKS." Scientific Papers Collection of the Angarsk State Technical University 2023, no. 1 (2023): 244–51. http://dx.doi.org/10.36629/2686-7788-2023-1-244-251.

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The imbalance of phase loads is a natural negative property of a low-voltage three-phase four-wire network due to uneven connection to the phases and the difference in individual consumer demand for electricity. The imbalance of phase loads in the network nodes leads to a decrease in the quality of electricity, overestimated technical losses in the network and to current overloads in one of the phases of power lines. In the paper, balancing of phase loads in the network is performed using a heuristic algorithm based on average hourly readings of loads and voltages readings of consumer smart me

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6

Аnatoly, Voloshko, and Dzheria Tetiana. "SIMULATION AND RESEARCH OF SINGLE-PHASE SHORT CIRCUITS IN THE ELECTRICAL NETWORK." Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences) 2, no. 43 (2023): 132–39. http://dx.doi.org/10.31319/2519-2884.43.2023.14.

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The purpose of this work is to model single-phase short circuits in a three-phase electrical network and identify their type by analyzing the angular frequency of the spatial vector. Recently, the saturation of electric networks with powerful non-linear loads, the introduction of conversion equipment and renewable energy sources lead to the need for systematic analysis and research of the quality of electric energy (QEE). One of the factors that significantly affect the operation of electrical equipment is short circuits. In the article, based on the developed model of the formation of QEE dis

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7

Vasiliev, N. V., D. A. Kartashev, and N. Yu Krishtopa. "Analysis of operating modes of three-phase distribution networks using their digital models of 0.4 kV." IOP Conference Series: Earth and Environmental Science 979, no. 1 (2022): 012110. http://dx.doi.org/10.1088/1755-1315/979/1/012110.

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Abstract Today, the problem of the quality of electricity is of particular relevance, because it is one of the most important conditions for the economical and long-term operation of electrical equipment in industrial enterprises, as well as in housing and communal services. Analysis of existing methods, as well as other studies of the quality of electrical energy in 0.4 kV networks, shows the limitations of existing methods for assessing the quality of electricity and determining power losses in 0.4 kV networks. The total relative losses of electricity in the electric grids of Russia are seve

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8

Zhao, Liang, and Qiongfang Yu. "The Phase Selection of Three-phase Arc Fault Based on Improved TCN-LSTM." Journal of Physics: Conference Series 2359, no. 1 (2022): 012011. http://dx.doi.org/10.1088/1742-6596/2359/1/012011.

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Abstract According to the increasingly severe situation of electricity safety. Aiming at the difficulty in extracting arc fault features in low-voltage three-phase systems and the inconspicuous phase distinction, a three-phase arc fault phase selection method based on improved LSTM-TCN neural network is proposed. Firstly, the structure and activation function of Long Short-Term Memory Network (LSTM) and Temporal Convolutional Network (TCN) are improved according to the experimental data. Finally, the feature vectors obtained by the improved LSTM and the improved TCN are fused to determine the

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9

Sorokin, D. A., S. I. Volskiy, and Y. Y. Skorokhod. "Three-phase power factor corrector with direct power control and power supply of the unbalanced industrial network." E3S Web of Conferences 124 (2019): 05017. http://dx.doi.org/10.1051/e3sconf/201912405017.

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Nowadays three-phase power factor correctors (PFC) became widely used. This is dictated by strict requirements of the international electrical technical commission standards to harmonic composition of current supplied by three-phase industrial network. New schematic technical version of three-phase PFC having direct power control and improved efficiency factor is presented. Mathematical description of power component and control system taking in account its functioning depending upon asymmetrical three-phase input voltage was fulfilled. The electrical processes in the presented PFC was analyse

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10

FILONENKO, Sergii, Vitaliy LARIN, and Anzhelika STAKHOVA. "DETERMINATION OF MEASUREMENT ERROR OF ELECTRICAL ENERGY QUALITY INDICATORS BY THE CORRELATION METHOD." Herald of Khmelnytskyi National University. Technical sciences 315, no. 6 (2022): 104–8. http://dx.doi.org/10.31891/2307-5732-2022-315-6(2)-104-108.

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The problem of energy conservation is urgent not only for Ukraine but for the whole world. One of the main causes of non-productive energy costs in the energy sector is high losses in power grids. The problem of electricity quality is the focus of many researchers and practitioners of energy and electrification. The co-supply of single-phase and three-phase electrical energy receivers from a three-phase four-wire network is widespread in the power supply systems of industrial enterprises. In such cases, there is almost always a phase asymmetry of the load, as well as significant currents in th

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11

Demianenko, Roman. "Calculation of instantaneous line current of a three-phase network with an isolated neutral." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (4) (July 2, 2022): 17–22. http://dx.doi.org/10.20998/2224-0349.2022.01.09.

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The article focuses on the study of methods for calculating instantaneous line currents in a three-phase network with an isolated neutral, which is critical for improving the reliability, efficiency, and accuracy of monitoring and diagnostics of electrical systems. The developed method extends the capabilities of standard approaches to diagnostics and analysis, and it allows for more accurate analysis of instantaneous parameters in electrical networks and detection of faults in the operation of high-voltage electrical installations. The study used an integrated approach to analyzing and modeli

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12

Kharlamov, V. V., Yu V. Moskalev, and V. S. Lysenko. "Increasing efficiency of three-phase induction motors at power supply from single-phase electrical network." Omsk Scientific Bulletin, no. 159 (2018): 27–31. http://dx.doi.org/10.25206/1813-8225-2018-159-27-31.

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13

Kharlamov, V. V., Yu V. Moskalev, and V. S. Lysenko. "SIMULATION OF THE ELECTRICAL PHASE CONVERTER FOR CONNECTING A THREE-PHASE MOTOR TO A SINGLE-PHASE NETWORK." Dynamics of Systems, Mechanisms and Machines 8, no. 3 (2020): 081–87. http://dx.doi.org/10.25206/2310-9793-8-3-81-87.

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В статье рассматривается имитационная модель работы полупроводникового устройства, которое позволяет подключить трехфазный асинхронный двигатель к однофазной электрической сети и обеспечить трехфазное симметричное напряжение на обмотке статора. Выполнен расчет параметров элементов, входящих в структуру преобразователя числа фаз. В программе Simulink пакета Matlab составлена имитационная модель, описывающая работу преобразователя числа фаз и подтверждающая теоретические выводы. Приведены расчетные выражения для определения параметров сглаживающего фильтра, который входит в структуру преобразова

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14

Derkachev, S. V. "Microprocessor protection of electrical motors against phase failure in external power supply network." Vestnik IGEU, no. 1 (February 28, 2022): 46–53. http://dx.doi.org/10.17588/2072-2672.2022.1.046-053.

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Nonsymmetrical modes in the external power supply network during operation can be caused by several reasons: phase failure due to strong wind or glaciation of overhead power lines, wire burnout due to persistent short circuits, open phase automatic reclosing. In case of open phase condition, the external power supply network, synchronous and asynchronous electric motors are powered along the two phases that are in operation. It leads to the negative sequence current, which poses maximum danger for electric motors, since it causes additional heating and, as a result, premature damage. Therefore

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15

Stepanenko, Y. V. "Study of unbalance voltage in three-phase networks with different neutral modes." Electrical Engineering and Power Engineering, no. 2 (June 27, 2024): 27–35. http://dx.doi.org/10.15588/1607-6761-2024-2-3.

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Purpose. Determination of the influence of network parameters with different neutral modes on the zero-sequence voltage Methodology. The research methodology is based on the general theory of electrical engineering and, in particular, on the method of symmetrical components. Findings. A mathematical model has been developed to establish the nature of the zero-sequence voltage change for different modes of the network neutral. The value of the zero-sequence voltages and the angles between the phase voltage vector with asymmetry and the zero-sequence voltage vector depending on the capacitive as

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16

Khristich, I. O., K. V. Konstantinov, A. M. Evstaf’ev, I. A. Terekhin, and A. N. Sychugov. "Algorithm for Quality Control of Three-Phase Network Voltage." Russian Electrical Engineering 93, no. 2 (2022): 89–94. http://dx.doi.org/10.3103/s1068371222020079.

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17

Chu, W. J., and H. Chen. "Decoupled simulation of asymmetrical three-phase power network transients." IEE Proceedings - Generation, Transmission and Distribution 143, no. 6 (1996): 587. http://dx.doi.org/10.1049/ip-gtd:19960532.

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18

Bot, Youcef, Bakhta Naama, Abdelkader Yousfi, Ahmed Allali, and Mouloud Denai. "Control of line voltage unbalance factor in three-phase distribution grids caused by single-phase photovoltaic systems." Journal of Renewable and Sustainable Energy 14, no. 2 (2022): 026301. http://dx.doi.org/10.1063/5.0085359.

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This study investigates the use of photovoltaic systems to regulate the voltage amplitude of electric power networks and to analyze their impact on the stability of Line Voltage Unbalance Factor (LVUF). It will be shown that instability of the LVUF can occur when single-phase domestic photovoltaic systems equipped with a voltage controller are connected to the three-phase low voltage network. The degradation of the LVUF is one of the problems to be avoided in three-phase electrical networks. To address this problem, this paper presents a complementary algorithm to be applied on the existing co

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19

Demianenko, Roman. "CALCULATION OF THREE-PHASE INSTANTANEOUS LINE CURRENTS AT UNBALANCED VOLTAGES." Bulletin of the National Technical University «KhPI» Series: New solutions in modern technologies, no. 1(19) (April 26, 2024): 99–106. https://doi.org/10.20998/2413-4295.2024.01.13.

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The problem of optimizing the operation of three-phase electrical systems with an isolated neutral used in subways and other critical infrastructure facilities is considered. The various aspects of asymmetric loads that can cause serious disturbances in the operation of the entire power grid, including a decrease in its stability and reliability are analyzed. It is confirmed that traditional methods of analysis often do not take into account real operating conditions, which leads to errors in the design and operation of systems, and the need to develop new, more accurate methods of analysis is

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20

Naumov, Igor, Sergey Podyachikh, Dmitri Ivanov, Alexander Tretyakov, and Andrey Bastron. "Analysis of unbalanced load low-voltage electrical networks operating modes." E3S Web of Conferences 295 (2021): 02005. http://dx.doi.org/10.1051/e3sconf/202129502005.

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The article discusses distribution electrical networks 0.38 kV operating modes, feeding individual residential buildings. The electrical energy parameters measurement were certified RESURS-UF2M device carried out. The currents and voltages time diagrams based on the measurements made and using Matlab technologies were constructed. It is established that the level of phase currents unbalance is quite high and causes significant three-phase power supply system unbalance voltage accordingly. The power of quality indicators - calculations, characterizing voltage unbalance were made, which were bas

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21

Клименко, Ю. А., А. П. Преображенский, and О. Н. Чопоров. "ADAPTIVE CONTROL SYSTEM FOR ELIMINATING THE ASYMMETRICITY OF PHASE LOAD IN A THREE-PHASE NETWORK 0.4 KV." МОДЕЛИРОВАНИЕ, ОПТИМИЗАЦИЯ И ИНФОРМАЦИОННЫЕ ТЕХНОЛОГИИ 7, no. 4(27) (2019): 15–16. http://dx.doi.org/10.26102/2310-6018/2019.27.4.015.

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Актуальность исследования обусловлена основными требованиями Федерального Закона от 23.11.2009 года 261-ФЗ Об энергосбережении и о повышении энергетической эффективности и о внесении изменений в отдельные законодательные акты РФ. В работе рассматривается возможность создания комплекса контроля и управления качеством электроэнергии (КК и УКЭЭ) в распределительных сетях 10/0,4 кВ, особенно в отдалённых и труднодоступных районах сельских местности. Проблема несоответствия качества поставляемых сетевыми и энергосбытовыми организациями энергоресурсов требованиям ГОСТ, состоит в физической и моральн

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22

Nithiyananthan, K., Simson Samson Raja, R. Sundar, and A. Amudha. "Virtual Stability Estimator Model for Three Phase Power System Network." Indonesian Journal of Electrical Engineering and Computer Science 4, no. 3 (2016): 520. http://dx.doi.org/10.11591/ijeecs.v4.i3.pp520-525.

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<p><em>The main objective of this research work is to develop a simple power systems steady state stability estimator in LabView for three phase power system network. LabVIEW based power systems stability estimator has been chosen as the main platform because it is a user friendly and easy to apply in power systems. This research work is intended to simultaneously acclimate the power system engineers with the utilization of LabVIEW with electrical power systems. This proposed work will discuss about the configuration and the improvement of the intelligent instructional VI (virtual

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23

Zharkin, A. F., Yu M. Goryslavets, O. I. Gluhenky, and R. V. Belyanin. "RESEARCH OF ACTIVE POWER TRANSFER IN AN INSTALLATION FOR INDUCTION HEAT TREATMENT OF CYLINDRICAL ALUMINUM BILLETS WITH A THREE-PHASE INDUCTOR." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2025, no. 70 (2025): 5–13. https://doi.org/10.15407/publishing2025.70.005.

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For the proposed design variant of a three-phase inductor of a device for induction heat treatment of cylindrical aluminum billets, which is used in the technology of production of conductive cores of power cables before pressing of wire rod, using the developed mathematical model of electrothermal processes, the process of active power transfer between phase sections and along the length of the billets, which occurs in the inductor due to inductive coupling between phase windings, has been investigated. It was established that the side phase sections of the inductor are characterized by the l

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24

Ngasop, Ndjiya, Asnang David, and Haman Djalo. "Using Hysteresis Band Method for the Control of Three-Phase STATCOM Connected to a Transport Network." European Journal of Engineering Research and Science 5, no. 7 (2020): 767–72. http://dx.doi.org/10.24018/ejers.2020.5.7.1983.

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The transit of reactive power through the electric transport lines due to the inductive loads, creates problems of instabilities on the electrical networks. Transport networks are increasingly vulnerable to instability of voltage due to industrialization and/or population growth. The managers of these networks are therefore seeking effective solutions to these problems. STATCOM is one of the devices of the family of shunt FACTS used for reactive energy compensation. It generally offers better features compared other FACTS devices and conventional reactive compensation devices. This work aims t

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25

Ngasop, Ndjiya, Asnang David, and Haman Djalo. "Using Hysteresis Band Method for the Control of Three-Phase STATCOM Connected to a Transport Network." European Journal of Engineering and Technology Research 5, no. 7 (2020): 767–72. http://dx.doi.org/10.24018/ejeng.2020.5.7.1983.

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Анотація:

The transit of reactive power through the electric transport lines due to the inductive loads, creates problems of instabilities on the electrical networks. Transport networks are increasingly vulnerable to instability of voltage due to industrialization and/or population growth. The managers of these networks are therefore seeking effective solutions to these problems. STATCOM is one of the devices of the family of shunt FACTS used for reactive energy compensation. It generally offers better features compared other FACTS devices and conventional reactive compensation devices. This work aims t

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26

Ivanov, Sergey O., Aleksandr A. Lariukhin, Maxim V. Nikandrov, and Leonid A. Slavutskii. "ACCURACY ESTIMATION FOR OPERATING CHARACTERISTICS NEUROMODELING OF THE OVERCURRENT PROTECTION IN A THREE PHASE MAINS." Vestnik Chuvashskogo universiteta, no. 1 (March 25, 2021): 68–77. http://dx.doi.org/10.47026/1810-1909-2021-1-68-77.

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Modern electric power facilities-stations and high-voltage substations have become digital objects with the active use of high-speed local networks directly involved in the technological process. Management, analysis and control of information exchange in the digital substation of the power system require the development of new tools and approaches. For these purposes, machine learning methods can be used, in particular, the artificial neural networks. The paper presents the results of neural network modeling of the operation of the overcurrent protection – as a variant of the information exch

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27

Lezhnina, Yuliya, Azizjan Abubakiro, Isa Gaipov, and Nawriz Eshmuratov. "Monitoring of asymmetric values and parameters of electric networks." E3S Web of Conferences 371 (2023): 03068. http://dx.doi.org/10.1051/e3sconf/202337103068.

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Анотація:

This paper considers the digitalization of electrical networks, the organization of remote control of the values and parameters of electrical energy, the creation of digital elements, devices and complexes for monitoring and managing power quality indicators based on Cloud Computing technology, the conversion of primary currents into signals in the form of secondary voltages, and also discusses management issues symmetrical quantities and parameters of these converters. In addition, a model of a three-phase AC converter with specific loads and analytical expressions for determining the output

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28

Almi, M. F., M. Arrouf, H. Belmili, and B. Bendib. "Contribution to the Protection of PVG Connected to Three Phase Electrical Network Supply." Energy Procedia 18 (2012): 954–65. http://dx.doi.org/10.1016/j.egypro.2012.05.110.

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29

Turduev, I. "0.38 kV Electrical Network With Three-phase Loads and Capacitor Shunt-balancing Device." Bulletin of Science and Practice, no. 4 (April 15, 2023): 358–68. http://dx.doi.org/10.33619/2414-2948/89/41.

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The issue of reducing the current asymmetry coefficient and the current unbalance coefficient (in the absence of KSHSU, KSHSU in the load node, KSHSU on transformer buses) with the help of shunt-balancing devices is considered. The proposed symmetrical device has an additional two power stages and allows to increase the efficiency of symmetry due to adjustable, automatically changeable parameters that vary depending on the level of current asymmetry, i.e. on the magnitude of the zero sequence current.

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ZALIZNY, D. I., Y. A. RUDCHENKO, D. I. VEREMEEVA, and D. V. SUCHKOV. "AUTOMATION OF LOW-VOLTAGE ELECTRICAL NETWORK MODE CALCULATION." Bulletin Sukhoi State Technical University of Gomel, no. 1 (March 2025): 104–15. https://doi.org/10.62595/1819-5245-2025-1-104-115.

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Algorithms for calculating the steady-state mode of a three-phase low-voltage electrical network are considered. The algorithms are based on the well-known nodal potential matrix method using complex numbers. The Gaussian elimination method is proposed for solving the system of equations. To justify the application of this method, experimental studies were conducted, demonstrating that the load resistance of household consumers can be accurately approximated as linear and independent of voltage. The proposed algorithms were implemented in the LineCapacity software, designed for electrical netw

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31

KHRISTICH, I. O., K. V. KONSTANTINOV, A. M. EVSTAF’EV, I. A. TEREKHIN, and A. N. SYCHUGOV. "Algorithm for quality control of the three-phase network voltage." Elektrotekhnika, no. 2 (2022): 30–35. http://dx.doi.org/10.53891/00135860_2022_2_30.

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32

Antonov, Alexander I., Dmitry Yu Rudy, and Konstantin V. Khatsevsky. "Study of the quality of electric power in electric networks with semiconductor converters." Yugra State University Bulletin 19, no. 1 (2023): 123–30. http://dx.doi.org/10.18822/byusu202301123-130.

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Анотація:

At present, semiconductor converters have found wide application in the electric power industry [6]. One of the most common semiconductor converters is a frequency converter, as it provides a three-phase voltage with adjustable frequency from a three-phase mains voltage. However, it, like other semiconductor converters, is the cause of the appearance of harmonics and, as a result, the non-sinusoidal shape of the voltage curve [1]. Harmonics are the cause of such negative effects in the electrical network as concomitant heating of the windings of motors, transformers, etc., false alarms in dist

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33

Saraga, Fernanda, Leo Ng, and Frances K. Skinner. "Distal Gap Junctions and Active Dendrites Can Tune Network Dynamics." Journal of Neurophysiology 95, no. 3 (2006): 1669–82. http://dx.doi.org/10.1152/jn.00662.2005.

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Gap junctions allow direct electrical communication between CNS neurons. From theoretical and modeling studies, it is well known that although gap junctions can act to synchronize network output, they can also give rise to many other dynamic patterns including antiphase and other phase-locked states. The particular network pattern that arises depends on cellular, intrinsic properties that affect firing frequencies as well as the strength and location of the gap junctions. Interneurons or GABAergic neurons in hippocampus are diverse in their cellular characteristics and have been shown to have

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34

Laala, Zakaria, Amar Benaissa, Boualaga Rabhi, and Mohamed Fouad Benkhoris. "Neural network controller for five phases shunt active power filter applied for five phase embarked electrical network." International Journal of Power Electronics and Drive Systems (IJPEDS) 14, no. 2 (2023): 1024. http://dx.doi.org/10.11591/ijpeds.v14.i2.pp1024-1032.

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Анотація:

This paper discusses neural network ANN controller applied for five phase shunt active power filter. Three-phase shunt active power filters are widely studied, however in this paper we investigate to extend their application to five phase embarked electrical network. Two-level five phase inverter is used as a shunt active power filter to reduce harmonics and compensate reactive power injected by a five-phase diode rectifier. An artificial neural network controller has been used to regulate the DC side of the inverter, thereby contributing to the calculation of the reference harmonic currents o

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35

Rodrigue, Armel Patrick Okemba, Raoul MISSETETE Alfred, Rodolphe Gomba, Abba Labane Haroun, and Mobonda Flory Lidinga. "The Conventional Regulation Application on the Stability's Hydroelectric Generators: Case of Imboulou Power Plant Generators in the Republic of Congo." Journal of Scientific and Engineering Research 8, no. 11 (2021): 97–107. https://doi.org/10.5281/zenodo.10619303.

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<strong>Abstract</strong> We present with the modeling of the different constituent parts of an electrical network, namely: The synchronous machine (alternators), transmission electrical lines, transformers and loads. We then present the studied network. A three-phase short circuit on a two-dull line is simulated, it is eliminated by opening the end circuit breakers of the line. The behavior of the system is first studied, when the electrical network is not regulated, and subsequently, the case where the electrical network is regulated, is examined.

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36

Iskakov, Zharilkassin, and Vladimir Kossov. "WAY OF CONNECTION OF A THREE-PHASE MOTOR TO A SINGLE-PHASE NETWORK VIA RESONANCE EFFECT." CBU International Conference Proceedings 7 (September 30, 2019): 920–27. http://dx.doi.org/10.12955/cbup.v7.1475.

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In this paper, we propose a method to connect a three-phase motor, with windings connected by a star and a phase-shifting capacitor as the third contact, to a single-phase network, with efficient use of electrical energy due to compensation of reactive power and due to effective distribution of the voltage in front of the motor’s oscillating circuit. A resonance phenomenon in an oscillating circuit of the motor is used to compensate for reactive power, i.e. to increase the active power coefficient to the maximum value. A capacitor bank in front of the circuit is used to effectively distribute

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37

Zakaria, Laala, Benaissa Amar, Rabhi Boualaga, and Fouad Benkhoris Mohamed. "Neural network controller for five phases shunt active power filter applied for five phase embarked electrical network." International Journal of Power Electronics and Drive Systems 14, no. 02 (2023): 1024~1032. https://doi.org/10.11591/ijpeds.v14.i2.pp1024-1032.

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Анотація:

This paper discusses neural network ANN controller applied for five phase shunt active power filter. Three-phase shunt active power filters are widely studied, however in this paper we investigate to extend their application to five phase embarked electrical network. Two-level five phase inverter is used as a shunt active power filter to reduce harmonics and compensate reactive power injected by a five-phase diode rectifier. An artificial neural network controller has been used to regulate the DC side of the inverter, thereby contributing to the calculation of the reference harmonic currents o

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38

Blasco, Pedro A., Rafael Montoya-Mira, José M. Diez, Rafael Montoya, and Miguel J. Reig. "Compensation of Reactive Power and Unbalanced Power in Three-Phase Three-Wire Systems Connected to an Infinite Power Network." Applied Sciences 10, no. 1 (2019): 113. http://dx.doi.org/10.3390/app10010113.

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Анотація:

The compensation of an electrical system from passive compensators mainly focuses on linear systems where the consumption of charges does not vary significantly over time. In three-phase three-wire systems, when the network voltages are unbalanced, negative-sequence voltages and currents appear, which can significantly increase the total apparent power supplied by the network. This also increases the network losses. This paper presents a method for calculating the compensation of the positive-sequence reactive power and unbalanced powers caused by the negative-sequence line currents using reac

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39

Taha, Hussein A. "Eliminating Inrush Current in Three-Phase Transformer using Artificial Neural Network." Wasit Journal of Engineering Sciences 12, no. 4 (2024): 52–63. https://doi.org/10.31185/ejuow.vol12.iss4.568.

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Transformers are important parts of an electrical power system. When a power transformer is connected to the grid, usually inrush current increases substantially with a high value of harmonic components with a duration up to many cycles. The amount of flux in the core increases causing the magnetic circuit to saturate due to the increasing in the load. This paper describes a technique to accurately predict the inrush current and third harmonic of three phase transformer. A shallow neural network was created. The input parameters of the artificial neural network were the magnetization resistanc

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40

Hu, Wei, Di Jiang, Weiyi Zhang, Yuxin Liu, Kai Zhu, and Tiedi Zhang. "Design of a W-Band Dielectric Phase Shifter Based on Liquid Crystal." International Journal of Antennas and Propagation 2022 (November 15, 2022): 1–6. http://dx.doi.org/10.1155/2022/6486628.

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In this paper, a W band (75–110 GHz) phase shifter based on the liquid crystal of continuous tunability and the three-electrode bias network of excellent electrical manipulation is designed. Taking Rexolite 1422 as the transmission dielectric, in which slots are dug and filled with liquid crystal. The voltage is regulated by the electrode bias network, and then the liquid crystal dielectric constant is changed to realize phase shift. The measured results show that the phase shift of the liquid crystal dielectric phase shifter can be up to 440° through the electrical control of the bias electro

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41

Kootte, Maria Eliza, and Cornelis Vuik. "Steady-State Stand-Alone Power Flow Solvers for Integrated Transmission-Distribution Networks:A Comparison Study and Numerical Assessment." Energies 14, no. 18 (2021): 5784. http://dx.doi.org/10.3390/en14185784.

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This paper compares and assesses several numerical methods that solve the steady-state power flow problem on integrated transmission-distribution networks. The integrated network model consists of a balanced transmission and an unbalanced distribution network. It is important to analyze these integrated electrical power systems due to the changes related to the energy transition. We classified the existing integration methods as unified and splitting methods. These methods can be applied to homogeneous (complete three-phase) and hybrid (single-phase/three-phase) network models, which results i

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42

Choe, Ann S., Bohao Tang, Kimberly R. Smith, et al. "Phase-locking of resting-state brain networks with the gastric basal electrical rhythm." PLOS ONE 16, no. 1 (2021): e0244756. http://dx.doi.org/10.1371/journal.pone.0244756.

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A network of myenteric interstitial cells of Cajal in the corpus of the stomach serves as its “pacemaker”, continuously generating a ca 0.05 Hz electrical slow wave, which is transmitted to the brain chiefly by vagal afferents. A recent study combining resting-state functional MRI (rsfMRI) with concurrent surface electrogastrography (EGG), with cutaneous electrodes placed on the epigastrium, found 12 brain regions with activity that was significantly phase-locked with this gastric basal electrical rhythm. Therefore, we asked whether fluctuations in brain resting state networks (RSNs), estimate

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43

Utegulov, A. B., I. V. Koshkin, and A. I. Koshkina. "Experimental Studies of the Developed Method for Determining the Insulation Parameters in an Asymmetric Network by a Voltage up to 1000 V at Mining Enterprises." E3S Web of Conferences 220 (2020): 01032. http://dx.doi.org/10.1051/e3sconf/202022001032.

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In the work experimental studies of the developed method for determining the insulation parameters in an asymmetric electrical network by a voltage up to 1000 V at mining enterprises were carried out. It is based on measuring the module values of line voltage, angle of phase shift between vectors of damaged phase voltage relative to the ground and line voltage at two other phases, as well on measuring the module value of damaged phase voltage relative to the ground before and after connecting additional capacitive conductivity between the network’s phases and the ground. The results of experim

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44

Bi, Jinjie, Hongyu Gu, Hang Yang, Zhengyang Hao, and Shoulin Huang. "Partial Discharge Detection Technique Based on Full Convolutional Network with Channel-wise Convolution and Channel Mixing." Journal of Physics: Conference Series 2868, no. 1 (2024): 012032. http://dx.doi.org/10.1088/1742-6596/2868/1/012032.

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Abstract The occurrence of partial discharge (PD) serves as an indication of power equipment failure, which, if not given due attention, may result in severe power accidents. Traditionally, the detection of PD involves applying various pre-processing techniques to the original signal and extracting specialized signal features that are subsequently classified using a classifier. The process is intricate and demands extensive expertise. One drawback of the conventional detection approach lies in its failure to consider the information conveyed between the phases of a three-phase electrical signa

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45

Voronov, P. L. "DETERMINATION OF THE TRANSFORMATION TENSOR OF AN ASYMMETRIC THREE-PHASE COMPOUND NETWORK AT ITS PHYSICAL SEPARATION INTO PARTS." Vesti vysshikh uchebnykh zavedenii Chernozem ya 20, no. 2 (2024): 11–29. https://doi.org/10.53015/18159958_2024_20_2_11.

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The relevance of the study is due to the fact that currently the strategic direction for the further development of power supply systems (SES) is the concept of introducing various intelligent distribution complexes based on controlled power electrical equipment and new generation power lines. At the same time, digital substations are being created, as well as specialized communication and automated information and measurement complexes, relay protection devices and automation of production processes based on power electronics, microelectronics and microprocessor technology. The article discus

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46

Zhou, Niancheng, Shu Pan, and Qianggang Wang. "Flicker transfer for three‐phase voltage source converter in distribution network." Electronics Letters 51, no. 11 (2015): 858–60. http://dx.doi.org/10.1049/el.2014.3824.

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47

Elmitwally, A., S. Abdelkader, and M. El-Kateb. "Neural network controlled three-phase four-wire shunt active power filter." IEE Proceedings - Generation, Transmission and Distribution 147, no. 2 (2000): 87. http://dx.doi.org/10.1049/ip-gtd:20000007.

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48

Najafzadeh, Masoud, Jaber Pouladi, Ali Daghigh, Jamal Beiza, and Sima Shahmohamadi. "A New Method for Fault Detection and Location in a Low-Resistance Grounded Power Distribution Network Using Voltage Phasor of D-PMUs Data." International Transactions on Electrical Energy Systems 2023 (July 22, 2023): 1–17. http://dx.doi.org/10.1155/2023/1754305.

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Анотація:

Electric power grids are always affected by numerous unexpected faults. Occurrence of these faults will have a negative impact on network availability and reliability indices of the network. But the indicators of reliability and quality of electrical energy in the network can be augmented by locating the fault in the shortest time. Special features of distribution networks such as load and network imbalance, existence of different types of load with different connections, existence of multiphase branches, effects related to different conductors, capacitive effects of distribution lines, and li

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49

Njitacke, Zeric Tabekoueng, Jan Awrejcewicz, Balamurali Ramakrishnan, Karthikeyan Rajagopal, and Jacques Kengne. "Hamiltonian energy computation and complex behavior of a small heterogeneous network of three neurons: circuit implementation." Nonlinear Dynamics 107, no. 3 (2021): 2867–86. http://dx.doi.org/10.1007/s11071-021-07109-4.

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AbstractBrain functions are sometimes emulated using some analog integrated circuits based on the organizational principle of natural neural networks. Neuromorphic engineering is the research branch devoted to the study and realization of such circuits with striking features. In this contribution, a novel small network of three neurons is introduced and investigated. The model is built from the coupling between two 2D Hindmarsh–Rose neurons through a 2D FitzHugh–Nagumo neuron. Thus, a heterogeneous coupled network is obtained. The biophysical energy released by the network during each electric

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50

Wang, Xuejie, Yanchao Ji, Jianze Wang, et al. "Research on Reconfiguration of Distribution Network considering Three-Phase Unbalance." Wireless Communications and Mobile Computing 2022 (August 18, 2022): 1–12. http://dx.doi.org/10.1155/2022/9906100.

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Анотація:

In the distribution network, the addition of distributed power sources can improve the voltage part of the distribution system, provide uninterrupted power supply, and reduce network losses. The location of the power supply and its output will also directly affect the system voltage and power loss. Therefore, determining the optimal installation location and capacity of distributed power generation is of great significance to the distribution network. However, in the actual system, due to the unbalanced load distribution and the three-phase unbalance of the transmission line, the power distrib

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