Results 11 to 20 of about 1,047,159 (304)
Analysis of contact ablation of circuit breaker after short circuit current breaking
AIP Advances, 2023 During the opening and closing process of the contact, it will undergo repeated arc ablation and wear. After each ablation and wear, the composition, performance, and shape of the contact surface constantly change, leading to cracks, slag drop, melting ...
Xiaopo Mao +6 more
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Optimal short‐circuit current control of the grid‐forming converter during grid fault condition
IET Renewable Power Generation, 2021 A considerable amount of rotating synchronous machines are being replaced by the increasing capacity of converter-based resources, which has stimulated a demand for grid-forming converters (GFCs) for grid supporting.
Chang Liu, X. Cai, Rui Li, Renxin Yang
semanticscholar +1 more source
Energy Reports, 2020 The flexible DC transmission system needs a DC circuit breaker to remove and isolate the bipolar short-circuit fault to prevent the excessive short-circuit current from damaging the DC transmission system.
Can Ding +3 more
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Energy Reports, 2022 Large number of photovoltaic (PV) power plants connected to a power grid can bring significant impacts to fault currents and the operation of protection systems.
Shuai Yuan +2 more
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Predicting Early EVA Degradation in Photovoltaic Modules From Short Circuit Current Measurements
IEEE Journal of Photovoltaics, 2021 One of the common failures in photovoltaic modules is the degradation of the ethylene-vinyl acetate (EVA) encapsulant due to prolonged ultraviolet exposure and other environmental stress factors, such as temperature and humidity.
H. Mahdi, P. Leahy, A. Morrison
semanticscholar +1 more source
Short-Circuit Fault Current Parameter Prediction Method Based on Ultra-Short-Time Data Window
Energies, 2022 The prediction of short-circuit current parameters is essential for the adoption of short-circuit fault limiting techniques and the reliable cut-off of circuit breakers.
Mengjiao Wang, Xinlao Wei, Zhihang Zhao
doaj +1 more source
The Renewable Energies and Power Quality Journal (RE&PQJ), 2021 To substantially increase the efficiency of photovoltaic (PV) systems, it is important that the Maximum Power Point Tracking (MPPT) system has an output close to 100%.This process is handled by MPPT algorithms such as Fractional Open-Circuit Voltage ...
C. B. N. Fapi, P. Wira, M. Kamta
semanticscholar +1 more source
Gong-kuang zidonghua, 2020 The existing zero-crossing point prediction algorithms of short-circuit current have some problems, such as complex calculation and big error. For three-phase short-circuit fault of coal mine power supply system, a zero-crossing point prediction ...
YU Shuohang +3 more
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Active Reduction of Short-Circuit Current in Power Distribution Systems
Energies, 2020 In this paper, a new concept of short-circuit current (SCC) reduction for power distribution systems is presented and analyzed. Conventional fault current limiters (FCLs) are connected in series with a circuit breaker (CB) that is required to limit the ...
Esteban Pulido +3 more
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Energies, 2022 In this study, genetic programming (GP) is used for optimizing bus and line separation methods to reduce the short-circuit current. Expanding power systems led to intensive electric power and more transmission lines, reducing the grid impedance.
Dabin Son, Sangwook Han
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