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Journal articles on the topic 'Power supply network'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Byk, Felix, Yuri Kakosha, and Lyudmila Myshkina. "Distributed power generation and power supply reliability improvement." E3S Web of Conferences 216 (2020): 01013. http://dx.doi.org/10.1051/e3sconf/202021601013.

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The appearance of distributed generation in the power supply systems of industrial enterprises leads to the emergence of requirements for networks to increase their redundancy functions. The introduction of network redundancy fees will lead to an increase in electricity supply costs for such enterprises. The source of additional revenue may be the provision of regulatory resources to the aggregator of electricity demand management in the UES of Russia. But this requires changes that allow active consumers to supply the distribution network with excess capacity during peak hours in the UES of R

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2

Li, Ke, Yuqing Lin, Guoliang Li, and Long Wang. "Start-up and Transient Support Control of AC-DC Hybrid Distribution Networks with Distributed PV Access." Journal of Physics: Conference Series 2774, no. 1 (2024): 012066. http://dx.doi.org/10.1088/1742-6596/2774/1/012066.

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Abstract For AC-DC hybrid distribution networks, a large number of interconnecting converters connected to DC micro-sources and DC distribution networks in the distribution network provide a powerful aid for restoring power supply to the loads in the lost area after an accident by using the local power supply of the system, and at the same time, the power synchronisation control strategy provides a friendly power supply mode for the power supply of the interconnecting converters to the passive network. This paper analyses the start-up control of AC-DC hybrid distribution networks with distribu

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Agunov, Aleksandr, Anatoliy Burkov, and Mihail Ivanov. "Model for Joint Operation of Traction and External Power Supply System." Bulletin of scientific research results 2022, no. 3 (2022): 24–38. http://dx.doi.org/10.20295/2223-9987-2022-3-24-38.

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Purpose: To improve record accuracy of external power supply network influence on the operation of traction power supply systems of industrial frequency AC. The article shows that existing mathematical models of traction and external power supply joint operation have sounding limitations. These limitations almost exclude the possibility of their practical use. At the same time, when projecting a new electrification, it is required to choose the most efficient external power supply scheme. At the exploitation of existing electrified sections, the necessity arises to assess equalizing current va

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Johnsen, Thomas E., Ole Stegmann Mikkelsen, and Chee Yew Wong. "Strategies for complex supply networks: findings from the offshore wind power industry." Supply Chain Management: An International Journal 24, no. 6 (2019): 872–86. http://dx.doi.org/10.1108/scm-11-2018-0410.

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Purpose The purpose of this paper is to explore the challenges facing companies that operate within complex supply networks and the strategies they use to manage such complex supply networks. Design/methodology/approach The paper uses mixed methods by combining in-depth case studies with an executive forum with those of senior industry stakeholders. The two in-depth supply network case studies were carried out through multiple interviews with focal (or ‘developer’) firms that supply energy through offshore wind power and key suppliers such as wind turbine manufacturers. Findings The findings s

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Krotova, Svetlana, Irina Remizova, Elena Ovchinnikova, Aleksei Ilin, and Iurii Kozhubaev. "Basic methods of developing an expert system to assess the efficiency of power supply networks." E3S Web of Conferences 371 (2023): 03050. http://dx.doi.org/10.1051/e3sconf/202337103050.

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The paper presents the basic methods for developing an expert system to assess the efficiency of power supply networks. The existing expert systems and possibility of their use to assess the efficiency of power supply systems have been analyzed. Mathematical models for network expertise, in particular, methods of the theory of choice and decision making were described. Decision-making algorithm for power grid based on differential evolution method is considered. The algorithm to calculate the reduced costs in designing power supply networks, allowing to develop the optimal expert system for co

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Zhu, Yidong, Zhe Zhang, Hengyu Liu, Bo Zhao, and Tong Wang. "Open capacity of distribution network including distributed power supply and network reconfiguration." Intelligent Decision Technologies 18, no. 4 (2024): 3301–22. https://doi.org/10.3233/idt-240219.

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Load access point planning based on network security is the open capacity assessment for distributive networks to reduce power loss. Distribution network operators must meet consumers’ qualitative and statistical power demands and ensure their satisfaction. The distribution network function aims to minimize power loss by determining the network’s maximum power supply capacity while considering parameters like power flow dispersion, node voltage, line capability, and other limitations. The emergence of new flexible loads presents opportunities and challenges. The study suggested Open Capacity D

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Jo, Seungjin, Guangyao Li, Dong-Hee Kim, and Jung-Hoon Ahn. "Design of Power Supply Based on Inductive Power Transfer System for Medium Voltage Direct Current Sensor." Electronics 12, no. 22 (2023): 4702. http://dx.doi.org/10.3390/electronics12224702.

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This paper proposes a medium voltage direct current (MVDC) sensor power supply method based on inductive power transfer (IPT). Given that MVDC distribution networks transmit power at high voltages (several tens of kV), control through sensors is necessary to prevent exacerbating MVDC distribution network accidents. Moreover, these high voltages in MVDC distribution networks mean that high voltage insulation is required between the sensor and the distribution line and for any power supply device electrically connected to the sensor. Therefore, this paper proposes a safe and reliable power suppl

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Rozhkov, Vyacheslav V., Vladimir V. Fedotov, Kirill K. Krutikov, and Sergey G. Butrimov. "Structural modeling of existing and improved control algorithms for thyristor switching devices of uninterruptible power supply units for auxiliary needs of nuclear power plants." Journal Of Applied Informatics 18, no. 2 (2023): 116–31. http://dx.doi.org/10.37791/2687-0649-2023-18-2-116-131.

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The article analyzes the operation of thyristor automatic switching devices for uninterruptible power supply units of nuclear power plants. They are part of the emergency power supply system for auxiliary electrical equipment with a rated voltage of 0.4 kV. In such a reliable power supply system for especially responsible consumers, alternative networks and backup sources are necessarily used. Typically, groups of consumers for auxiliary needs of nuclear power plants are powered from the inverter network, so that in the event of a shutdown of the backup bypass network, these loads continue to

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9

Gruchmann, Tim. "Theorizing the impact of network characteristics on multitier sustainable supply chain governance: a power perspective." International Journal of Logistics Management 33, no. 5 (2022): 170–92. http://dx.doi.org/10.1108/ijlm-08-2021-0429.

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PurposeWhile the literature on multitier supply chain management traditionally assumes that first-tier suppliers belong to the visible proportion of the supply base, intermediaries might limit focal firms' visible horizon already at this stage. High power asymmetries promoting centrality and complexity in the supply network are seen as a particular root cause that limits the impact of governance mechanisms for sustainability. To map the space for governance mechanisms in a network-sensitive context more comprehensively, the study analyzes supply network characteristics from a power perspective

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Dovgun, Valery, Denis Shandrygin, Natalia Boyarskaya, and Valentina Andyuseva. "Passive Filter Design for Power Supply Systems with Traction Loads." E3S Web of Conferences 209 (2020): 07003. http://dx.doi.org/10.1051/e3sconf/202020907003.

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The purpose of the investigation is to analyze resonant modes in electric power systems that feed the traction load, to study the mutual influence of the traction network and the external power supply system. Simulation model of the power supply system with traction load, implemented with the Matlab/Simulink software package, is considered. The proposed model is used to study the influence of various parameters of the power supply system on resonant modes, including the length of lines, the short-circuit power of the external power supply system, and the spectral composition of locomotive curr

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Song, Zhuo, Wei Wang, Zhao Han, and Donghui Ma. "Analyze the Surplus Power Entropy of Water Supply Network after an Earthquake Based on the Pressure Drive Demand (PDD) Model." Sustainability 12, no. 4 (2020): 1591. http://dx.doi.org/10.3390/su12041591.

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It is necessary to evaluate the reliability of the water supply network, when the water supply network is damaged by an earthquake. Therefore, this paper researched the feasibility and characteristics of the surplus power entropy as the reliability index of the water supply network, and established a scheme framework for optimizing and improving the reliability of the water supply network. This paper developed a reliability evaluation model for the water supply network after an earthquake. Combined with the Monte Carlo stochastic simulation hydraulic analysis, this model is also based on the p

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Quanfeng, Gou, Yang Jie, Zhou Fei, et al. "Research on Forecasting Method of Distribution Network Investment Scale of Municipal Power Supply Enterprise Considering Power Supply Division and Cost Difference Level." E3S Web of Conferences 245 (2021): 01032. http://dx.doi.org/10.1051/e3sconf/202124501032.

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In recent years, in order to adapt to the situation of rapid economic and social development, my country’s power supply companies have invested large-scale funds to build distribution networks, and upgraded urban and rural power grids, effectively supporting the rapid growth of power demand and the reliability of power supply. Continuous improvement of power quality. While the scale of investment in the distribution network continues to remain high, problems such as focusing on investment and neglecting revenue, focusing on project establishment and neglecting management also exist to varying

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Tang, Haizhou, Xudong Zhao, Zhilong Chen, Jiheng Xu, and Xiaochao Su. "“Dose-Response” Vulnerability Assessment of Urban Power Supply Network: Foundation for Its Sustainability and Resilience." Mathematical Problems in Engineering 2018 (December 20, 2018): 1–12. http://dx.doi.org/10.1155/2018/8025093.

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Urban power supply network plays a vital role in maintaining the city operation. The vulnerability of power supply network in the face of events has been one of significant concerns. This study presents a new methodology and framework for “dose-response” vulnerability assessment of urban power supply network. This framework can explore the vulnerability of power supply network under two types of events: random type and intentional type. It also integrates a new metric that calculates the vulnerability of power supply network in both structural dimension and functional dimension. Taking the pow

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Pliuhin, Vladyslav, Gennadii Loktionov, Taras Sachoshko, Anatolii Zhylin, and Denys Haponov. "Optimization Of The Urban Power Supply Network." Lighting Engineering & Power Engineering 63, no. 3 (2024): 101–10. https://doi.org/10.33042/2079-424x.2024.63.3.04.

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The paper is devoted to the development of a methodology for reducing the cost of cable products during the construction of low-voltage networks of urban micro-districts, as well as minimizing the impact of the human factor during design. To achieve this goal, an optimization mechanism is proposed, which is based on the use of the Cartesian product of sets in combination with the gradient descent algorithm. In the optimization process, the best options for connecting consumers to substations are searched, which consider the optimal load parameters and cable line lengths. The optimal grouping o

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Uski, Sanna, Erkka Rinne, and Janne Sarsama. "Microgrid as a Cost-Effective Alternative to Rural Network Underground Cabling for Adequate Reliability." Energies 11, no. 8 (2018): 1978. http://dx.doi.org/10.3390/en11081978.

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Microgrids can be used for securing the supply of power during network outages. Underground cabling of distribution networks is another effective but conventional and expensive alternative to enhance the reliability of the power supply. This paper first presents an analysis method for the determination of microgrid power supply adequacy during islanded operation and, second, presents a comparison method for the overall cost calculation of microgrids versus underground cabling. The microgrid power adequacy during a rather long network outage is required in order to indicate high level of reliab

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16

Miao, Huiquan, Ya'nan Liu, Zilan Zhong, Junyan Han, Benwei Hou, and Xiuli Du. "Seismic Reliability Evaluation of Interdependent Water and Power Supply Networks." Earthquake Engineering and Resilience 4, no. 1 (2025): 41–60. https://doi.org/10.1002/eer2.108.

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ABSTRACTSeismic reliability assessments of water and power supply networks are typically conducted under the assumption of system independence. This article introduces a novel framework for evaluating the seismic reliability of interdependent water and power supply networks, grounded in a comprehensive analysis of their interdependence mechanisms. The proposed framework integrates network flow theory and the Monte Carlo simulation method, leveraging network flow theory to determine the functional status of various system nodes and employing Monte Carlo simulations to account for random factors

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Chen, Duanyun, Yuanjiu Li, Jie Bai, et al. "Dynamic regulation method of distributed generation in distribution network under 5G network." Journal of Physics: Conference Series 2195, no. 1 (2022): 012015. http://dx.doi.org/10.1088/1742-6596/2195/1/012015.

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Abstract Aiming at the problem of uneven power flow distribution caused by distributed power supply access, which leads to high voltage deviation and active network loss, a dynamic control method of distributed power supply in 5G network is proposed. The distributed topology structure of the distribution network under 5G network is generated, and the static topology information is extracted to establish the power partition. The distribution network in each area is connected to its own bus through different feeders. The distribution network reconstruction period is divided in the partition, and

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18

Levon, Olena, and Igor Domnin. "Active power filter for reactive power compensation for the powerful sounding pulses shapers." PHYSICS OF ATMOSPHERE AND GEOSPACE 1, no. 1 (2020): 21–30. http://dx.doi.org/10.47774/phag.01.01.2020-2.

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The expediency of using a power active filter in the mode of reactive power compensation of the supply network for the powerful sounding pulses shaper power supply system of the Institute of ionosphere NAS and MES of Ukraine is shown. An analysis of the literature has been carried out, which shows the effectiveness of solving the problem of reactive power compensation, filtering higher harmonics of the power supply network using active filtering of higher harmonics of current or voltage using an additional energy source to obtain a compensating signal in the form of current or voltage. The cho

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Varentsov, V. M., A. I. Bur’Yanovatyy, and M. A. Ivanov. "Energy accounting in AC substations in case of transit currents flowing through the contact network." Vestnik of the Railway Research Institute 76, no. 5 (2017): 294–300. http://dx.doi.org/10.21780/2223-9731-2017-76-5-294-300.

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The purpose of the work is to clarify the methodology for determining the electric power consumption of traction substations of AC electric power for the transit of external power supply. The conditions for the emergence of significant transit through traction networks of external power supply are revealed. Using the example of the Ushaped scheme for the replacement of power transmission lines, it is shown that the intersystem power fluxes along the electric power transmission lines of the external power supply exert the greatest influence on the transit currents along the traction networks. F

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Zharkov, Yu I., N. A. Popova, and E. P. Figurnov. "Accounting power supply schemes for traction substations in the calculation of short circuits in the AC traction network." Vestnik of the Railway Research Institute 78, no. 1 (2019): 10–18. http://dx.doi.org/10.21780/2223-9731-2019-78-1-10-18.

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When calculating short-circuit currents in the AC traction network, it is assumed that each of the traction substations receives power from uncoupled external power supply sources with known resistances. In some cases, especially when powering a group of traction substations from a high-voltage power line of a longitudinal power supply, the external power supply system affects not only the magnitude of short-circuit currents, but also their redistribution between adjacent traction substations of the interstation area where this circuit is considered. Such unrecorded redistribution can have a n

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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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Nebesniuk, V. O., O. Y. Nebesniuk, Z. A. Nikonova, and A. A. Nikonova. "Uninterrupted Power Supply System for Network Equipment." Journal of Nano- and Electronic Physics 16, no. 6 (2024): 06027–1. https://doi.org/10.21272/jnep.16(6).06027.

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Kovernikova, L. I., and Ngoc Hung Bui. "Additional Power Losses Under Non-Sinusoidal Conditions in a 22 kV Overhead Power Line." Energy Systems Research 7, no. 1(25) (2024): 31–36. http://dx.doi.org/10.25729/esr.2024.01.0003.

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Non-sinusoidal conditions in the electrical networks cause active power losses at the fundamental frequency, corresponding to the first harmonic, and at harmonic frequencies, which are a multiple of the fundamental frequency. Non-sinusoidal currents flow through network components and create additional active power losses. One of the non-sinusoidal current sources is electronic equipment used in industrial plants to control process equipment. In Vietnam, coal mines use frequency-controlled induction motors when processing coal. The induction motors consume non-sinusoidal current, which creates

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Jerzy, Wojciechowski, Syc Józef, Perzyński Tomasz, and Łukasik Zbigniew. "Diagnostics of the 3 Kv DC Traction Power Network." International Journal of Engineering & Technology 7, no. 4.3 (2018): 201. http://dx.doi.org/10.14419/ijet.v7i4.3.19735.

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The railway traction network line is one of the technical elements ensuring proper operation of railway traffic. Due to its technical function and specificity, it is an essential element of the railway infrastructure. That is, why diagnostics of traction networks is a very important issue. In the article, the authors presented issues related to the diagnostics of 3kVDC traction networks. An analysis of traction network faults for a group of power supply areas was also presented. Additionally, calculations of damage indicators in a selected, representative power supply area are presented. On th

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Zhang, Shi, Jun Wu, Kunmiao Li, and Hai Bao. "Loss Calculation of Single Power Supply to Single Load Based on Power Component Theory." Journal of Physics: Conference Series 2503, no. 1 (2023): 012083. http://dx.doi.org/10.1088/1742-6596/2503/1/012083.

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Abstract To calculate the loss in each power supply supplying power to different loads in a multi-power supply system, this paper proposes a complex proportional relationship between the power supply loss in the power transmission process to a specific load and the power injected by the power supply. And based on the circuit theory, the theoretical derivation is carried out. According to the known power flow results, this method uses the power component theory to track the network power flow forward and backward to construct a single power supply to a single load power supply network. It then

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Vinogradova, A. V., A. I. Psarev, A. V. Vinogradov, V. E. Bolshev, M. Jasinski, and R. R. Gibadullin. "Restoring normal network operation mode by automatically disabling network ATS." E3S Web of Conferences 178 (2020): 01072. http://dx.doi.org/10.1051/e3sconf/202017801072.

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Automatic sectionalizing and redundancy of power transmission lines is one of the conditions for network intellectualization and can significantly reduce the power supply interruption time for rural consumers. However, both sectionalizing and redundancy of power transmission lines in 0.4 kV electric networks are used extremely limitedly since there are no sufficiently effective methods and technical means for their implementation. This article presents a method to automatically deactivate the automatic load transfer switch when restoring the normal network operation mode. The paper considers t

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Li, Defang, Hao Zhang, Hui Yan, Xingjun Tian, Nanqing Wang, and Zexuan Yuan. "Research on Fault Location for Direct Traction Network." Journal of Physics: Conference Series 2215, no. 1 (2022): 012020. http://dx.doi.org/10.1088/1742-6596/2215/1/012020.

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Abstract In view of the low accuracy of existing fault location methods for traction networks with longer power supply lines, the equivalent model of the traction network for double-track electrified railways is calculated, and the power supply lines and contacts are introduced on the basis of traditional traction network fault location methods. The parameter of grid equivalent impedance ratio proposes a modified uplink and downlink current ratio ranging method, which effectively solves the problem of accurate fault location of the double-track electrified railway direct-supply traction networ

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Gu, Cailian, Yibo Wang, Weisheng Wang, and Yang Gao. "Research on Load State Sensing and Early Warning Method of Distribution Network under High Penetration Distributed Generation Access." Energies 16, no. 7 (2023): 3093. http://dx.doi.org/10.3390/en16073093.

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Aiming at the problems of power flow fluctuation and voltage exceeding standard caused by high permeability distributed power supply access, this paper proposes a load state perception early warning method for distribution networks. Firstly, the random behavior characteristics and voltage early warning mechanisms of power supply and load in distribution networks are analyzed, the dynamic model of distribution networks based on complex network theory is established, and the risk index of voltage exceeding limits under the conditions of high permeability distributed power supply access is put fo

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HANAI, Koichi. "Resilience of Power Network; About Disaster─resistant Power Supply System." Journal of The Institute of Electrical Engineers of Japan 140, no. 12 (2020): 762–65. http://dx.doi.org/10.1541/ieejjournal.140.762.

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Li, Ying, Xueying Zhang, Yue Zhang, Laiyuan Lai, and Chao Chen. "Research on Construction and Evaluation Method of Comprehensive Evaluation Index System for Investment Benefit of Distribution Network." E3S Web of Conferences 257 (2021): 02063. http://dx.doi.org/10.1051/e3sconf/202125702063.

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Under the new situation, the improvement of investment efficiency and efficiency will be the basic criteria for evaluating the quality of power supply enterprises’ investment activities in the distribution network. To this end, based on the characteristics of distribution network construction, combined with the internal and external development trends of power supply enterprises and development and promotion needs, this paper constructs a scientific comprehensive evaluation index system and evaluation method for the investment benefits of distribution networks, which is useful for scientifical

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Sychenko, Viktor G., Dmitry O. Bosiy, and Eugene M. Kosarev. "Improving the quality of voltage in the system of traction power supply of direct current." Archives of Transport 35, no. 3 (2015): 63–70. http://dx.doi.org/10.5604/08669546.1185193.

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Purpose of the work is improved approaches to ensure the required quality parameters of voltage in the traction network based on modern technologies and equipment in the application of power distribution system. Actuality. The introduction of high-speed traffic, increase weight standards Train necessitates increasing the carrying capacity of railways. Often the carrying capacity of existing sections electrified at 3.0 kV DC power supply unit limits. Such limitations include voltage decrease on the electric current collector below the allowable value for the normal operation of 2700 (2900 for h

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Fikrət oğlu Qurbanov, Elcan. "Improving the energy efficiency of reactive power compensated power supply systems in alternating current networks." SCIENTIFIC RESEARCH 09, no. 5 (2022): 138–42. http://dx.doi.org/10.36719/2789-6919/09/138-142.

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Dəyişən cərəyan şəbəkələrində reaktiv güc kompensasiyası elektrik təchizatı sisteminin enerji səmərəliliyini artırmağa imkan verir ki, bu da dəmir yolu hissəsinin çıxıntı və daşıma qabiliyyətinin artmasına gətirib çıxarır. Dartı yarımstansiyasında reaktiv güc şaquli kompensasiya cihazının keçid mərhələsinin seçilməsi dartıcının yükünün simmetrikləşdirilməsi zərurəti ilə müəyyən edilir. Reaktiv güc şaquli kompensasiya qurğularını dartı yarımstansiyasında faza geri qalma mərhələsinə daxil etmək tövsiyə olunur. Qeyd edək ki, RGK-nın quraşdırılması zamanı dartı güc təchizatı şəbəkəsinin kontakt şə

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Zhang, Zhan, and Jin Yang. "Power Supply Unit Planning of Distribution Network Including Energy Storage based on N-1 Criterion." Academic Journal of Science and Technology 11, no. 1 (2024): 155–60. http://dx.doi.org/10.54097/jer2wp15.

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In order to realize effective load transfer in medium voltage distribution network when N-1 fault occurs, a method of power supply unit division is proposed. Firstly, according to the content and characteristics of grid planning of distribution network, the principle of power supply unit division is proposed. Then, based on the grid planning of distribution network, the method of power supply unit division is established. Finally, the calculation results show that the division of power supply units based on the power supply grid and energy storage planning improves the line connection rate, me

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Sun, Xin, Qing Jie Zhou, Bo Wang, and Long Ming Fu. "Analysis and Suggestions for Power Supply Reliability Assessment Index of Distribution Network." Applied Mechanics and Materials 733 (February 2015): 726–29. http://dx.doi.org/10.4028/www.scientific.net/amm.733.726.

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The application of micro-grid affects distribution network, while the existing power supply reliability assessment index of distribution network cannot reflect its specific contribution. Based on an analysis of the shortages with the existing power supply reliability assessment index, a new index considering the time and power for evaluating the power supply reliability is proposed. The example indicates that the index proposed can be simply calculated and quantitatively measures the contribution to power supply reliability assessment of distribution network.

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Sun, Zhang, Yang, Liu, and Zhang. "Probabilistic Evaluation and Improvement Measures of Power Supply Capability Considering Massive EV Integration." Electronics 8, no. 10 (2019): 1158. http://dx.doi.org/10.3390/electronics8101158.

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Massive electric vehicle (EV) integration has been an inevitable trend for future power distribution networks. However, the spatial-temporal randomness of EV charging behavior may cause insufficiency of power supply capability. This paper simulates the charging loads with massive EV integration, proposes a probabilistic evaluation index to evaluate the probability of insufficient power supply capability, and gives improvement measures for power distribution networks without hardware upgrading. First, the spatial-temporal distribution of EV charging loads is simulated via Monte Carlo method, wh

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Shkrabak, Vladimir Stepanovich, Pavel Sergeevich Orlov, Vadim Vladimirovich Morozov, Roman Vladimirovich Shkrabak, and Olga Nikolaevna Krudu. "Engineering measures for accident reduction and electrotraumatism in elec-tric networks." Agrarian Scientific Journal, no. 10 (November 17, 2021): 117–23. http://dx.doi.org/10.28983/asj.y2021i10pp117-123.

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Until now, almost the only way to ensure symmetrical loading of AC networks with a voltage of up to 0.4 kV is to connect the load as uniformly as possible to the phases of the three-phase network. This technique does not provide constant symmetry of the load, which entails a decrease in the throughput of power networks and transformers, an increase in network losses, and a decrease in the reliability of power supply to consumers. The authors propose an innovative device for symmetric distribution of single-phase load over phases of a three-phase network. This allows us to solve a number of pro

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Lyutarevich, Alexander G. "Application of neural networks for prediction of power consumption parameters." Yugra State University Bulletin 19, no. 2 (2023): 124–32. http://dx.doi.org/10.18822/byusu202302124-132.

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Research was carried out within the framework of the state task of the Ministry of Science and Higher Education of the Russian Federation (topic Development of wavelet analysis models for non-stationary modes of electrical networks to improve the reliability and efficiency of power supply to consumers, topic code: FENG-2023-0005). Subject of research: predictive neural network model for a daily load schedule. Purpose of the study: prediction of power consumption based on the graph of electrical loads using a hybrid neural network. Object of research: methods for predicting th

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Liu, Yongming, Xiaokang Xu, and Zilong Song. "Optimal scheduling method of air source heat pump heating station considering optimal power flow of distribution network." Journal of Physics: Conference Series 2564, no. 1 (2023): 012007. http://dx.doi.org/10.1088/1742-6596/2564/1/012007.

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Abstract Participation of adjustable loads in demand response can alleviate power supply and demand challenges. As a typical adjustable load, this paper gives an optimal scheduling method considering optimal power flow in distribution networks of air source heat pumps, and studies adjustable load power allocation schemes for multiple distribution network nodes. The scheme with the goal of the lowest network loss determines the scheduling amount of the corresponding node heat supply stations to achieve optimal power flow dispatch, and the genetic algorithm is used to solve the model. Specific e

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39

Yang, Xiaona. "Power Flow Calculation of Distribution Network with Distributed Power Sources based on Improved Newton Method." International Journal of Energy 2, no. 3 (2023): 53–59. http://dx.doi.org/10.54097/ije.v2i3.9342.

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Aiming at the shortcomings of the existing power flow calculation methods in the distribution network with distributed power supply, a new power flow calculation method for the distribution network with distributed power supply is proposed. The processing methods of 4 different types of grid-connected nodes of distributed power supply are analyzed. The calculation rate of Jacobian matrix is increased by introducing two steps of predicted value and correction value in order to improve the sensitivity of Newton method to initial value. At last, IEEE33-node power distribution system is taken as a

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Xiao, Bai, Dianping Zhao, Qingbai Zhang, and Zhuo Jiang. "Evaluation of Power Supply Capability of Urban Distribution Network." Journal of Power Generation Technology 1, no. 1 (2023): 10. https://doi.org/10.61369/jpgt.0567.

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Abstract: Urban distribution network is an important&nbsp;link for users, and it is of great social and economic&nbsp;significance to carry out scientific evaluation on power&nbsp;supply capacity of urban distribution network. Firstly,&nbsp;this paper summarizes the concept of power supply&nbsp;capacity of urban distribution network, traditional&nbsp;evaluation method, and evaluation model. Secondly,&nbsp;the evaluation steps of power supply capability of&nbsp;urban distribution network are divided into three parts,&nbsp;which are building urban distribution

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Zhang, Ying, Ruibang Gong, Jiangbo Gu, and Yuchen Wang. "Construction of Marginal Effect Model for Reliability Improvement of Urban Distribution Network." Journal of Physics: Conference Series 2399, no. 1 (2022): 012025. http://dx.doi.org/10.1088/1742-6596/2399/1/012025.

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Abstract With the development of the social economy in China, China’s power grid is facing severe challenges. In addition to effective supply, the more important thing is to provide the reliability of the power supply for the existing distribution network. The power supply reliability of the distribution network directly affects the safety and reliability of power users, and also relates to the development of power supply enterprises. To realize the safer and more stable operation and development of urban distribution networks, this paper researches the construction of a reliability enhancemen

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Martinez, Raquel, Pablo Castro, Alberto Arroyo, et al. "Techniques to Locate the Origin of Power Quality Disturbances in a Power System: A Review." Sustainability 14, no. 12 (2022): 7428. http://dx.doi.org/10.3390/su14127428.

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The complexity in the power system topology, together with the new paradigm in generation and demand, make achieving an adequate level of supply quality a complicated goal for distribution companies. The electrical system power quality is subject to different regulations. On one hand, EN-50160 establishes the characteristics of the voltage supplied by public electricity networks, therefore affecting distribution companies. On the other hand, the EN-61000 series of standards regulates the electromagnetic compatibility of devices connected to the network, therefore affecting the loads. Power com

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Wang, Yikai, Xin Yin, Xianggen Yin, Jian Qiao, and Liming Tan. "A Petri Net-Based Power Supply Recovery Strategy for the Electric Power System of Floating Nuclear Power Plant." Applied Sciences 12, no. 18 (2022): 9026. http://dx.doi.org/10.3390/app12189026.

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Floating nuclear power plants contain sensitive loads of nuclear reactors. After equipment faults, fast and efficient power supply recovery should be realized. To realize the unified analysis of system topology and power flow distribution, a power supply recovery strategy based on Petri nets is proposed. Considering that systems of different voltage levels cannot be connected instantaneously, a two-stage power supply recovery mode is adopted. Emergency power supply is put in first, and then the whole network is reconstructed. In the network reconstruction process, load transfer is realized thr

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Derkachev, S. V. "Method for reducing time of backup power supply in power supply systems with motor load." Vestnik IGEU, no. 2 (April 30, 2023): 44–50. http://dx.doi.org/10.17588/2072-2672.2023.2.044-050.

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Nowadays fast-acting automatic transfer equipment is commonly applied in power supply systems with a motor load since it ensures uninterrupted power supply of critical consumers. However, their application requires the use of high-speed breakers. The implementation of a “high-speed” transfer to a backup power source when using vacuum switches may not be possible due to the long turn-on and turn-off times. Therefore, the purpose of the paper is relevant. The aim of the paper is to study the possibility to reduce the backup power supply time by improving the algorithm to control the vacuum switc

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Byk, F. L., Yu V. Kakosha, and L. S. Myshkina. "Reliability factor in the design of a distribution network." Power engineering: research, equipment, technology 22, no. 6 (2021): 43–54. http://dx.doi.org/10.30724/1998-9903-2020-22-6-43-54.

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Decision-making at the design stage of the distribution network significantly affects the change in the indices of uninterrupted power supply to consumers. The main ones are SAIDI and SAIFI. There is no methodological support for determining the predicted values of the power supply continuity indices. The purpose of the study is to develop a methodology for calculating the predicted values of indicators of uninterrupted supply during design. A feature of the technique is the account of the circuit-mode changes in the 0.4-10 kV distribution network section. The introduction of the developed met

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Grigoriev, A. S., D. V. Makolkin, and I. A. Tutnov. "Dependability of local power systems based on autonomous generation units." Dependability 24, no. 1 (2024): 41–50. http://dx.doi.org/10.21683/1729-2646-2024-24-1-41-50.

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Aim. The paper aims to create and verify methods for predicting the dependability of autonomous power supply to local low-power consumers. Methods. The work uses simulation tools, i.e., computational experiment for predicting the dependability and safe service life of autonomous cluster distributed energy networks that include various power generation installations, power transmission lines and an automated self-regulation system for the purpose of diversifying the risks of failure. Results. Using methods of probabilistic analysis of technical system safety, the dependability of power supply i

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Kuwałek, Piotr, and Grzegorz Wiczyński. "Problem of Supraharmonic Diagnostics in Power Networks." Electronics 14, no. 8 (2025): 1609. https://doi.org/10.3390/electronics14081609.

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The increasing number of power electronic devices in power networks causes a significant increase in supraharmonics in these networks. Supraharmonics are spectral components in the 2–150kHz bandwidth that cause high-frequency signal distortions that can disturb the operation of other supplied loads, including in the field of communication or control. In the case of an increase in the occurrence of supraharmonics, it is necessary to identify the source of the disturbance, taking into account, among others, the indication of its supply point. This article presents the results of observations of

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HONCHARENKO, YURII, OLEKSANDR KONOVALOV, IVAN POLESHCHUK, VOLODYMYR PRIADKO, and IRYNA HUNKO. "ONE ASPECT OF REACTIVE POWER COMPENSATION IN 0.4 kV RURAL NETWORKS." Herald of Khmelnytskyi National University 301, no. 5 (2021): 87–91. http://dx.doi.org/10.31891/2307-5732-2021-301-5-87-91.

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A sign of today is the development of powerful agro-industrial enterprises and sources of dispersed generation in rural areas. The issues of uninterrupted power supply and improvement of electricity quality indicators in such distribution networks are relevant. In rural electrical networks of alternating current, the total transmitted power S contains active P and reactive Q power of inductive nature, which is due to active – inductive load and therefore, respectively, the current in the power supply system has active and inductive components. The load consumption of active and reactive power

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Khalil, Umair, Muhammad Yousaf Ali Khan, Umer Amir Khan, and Shahid Atiq. "Power Flow Control by Unified Power Flow Controller." April 2020 39, no. 2 (2020): 257–66. http://dx.doi.org/10.22581/muet1982.2002.04.

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The demand of energy usage is increasing rapidly and to meet the energy requirements, best possible transmission systems should be adopted to avoid energy losses in our transmission systems. In Pakistan’s WAPDA (Water & Power Development Authority) system, the rapid increase in load and less generation capacity has increased load shedding thought the country. The government has planned to increase the generation capacity but the supply companies are facing line load-ability, environmental constraints, power limitations problems etc. Most of the supply companies prefer to extend the existin

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Salanga, Said Abdallah, Sosthenes Karugaba, and Respicius Kiiza. "Development of Maintenance Management System to Improve Reliability of Power Supply in Medium Voltage Distribution Network: A Case of TANESCO, Kinondoni North Region." International Journal of Advanced Research 8, no. 1 (2025): 75–94. https://doi.org/10.37284/ijar.8.1.2713.

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The reliability of the power supply in medium voltage distribution networks is crucial in the Kinondoni North region due to the growing demand for reliable electricity, increasing by approximately 20 MW per year. However, power supply reliability is compromised by several factors such as aging infrastructure, equipment failures, vandalism, natural disasters like storms and floods etc. These issues contribute to faults in the distribution feeders, causing power interruptions. Key challenges include identifying the location of faults, restoring power efficiently, and managing network maintenance

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