Results 1 to 10 of about 10,715 (249)
Analysis of the Zero Overvoltage Switching Phenomenon [PDF]
IEEE Access, 2022 In common understanding, the fast switching speed of wide-bandgap devices leads to high overvoltage and oscillations, if no countermeasures are taken. Those countermeasures were introduced in the past, and include methods such as build-in gate resistors ...
Nico Schmied, Stefan Matlok, Martin Marz
doaj +3 more sources
Analysis on switching overvoltage and suppression method of cable joint in 500 kV cable line
Energy Reports, 2021 The breakdown accident of cable joint occurs frequently when the sheath overvoltage cable line is closed, but the cable joint is ignored or simply treated in the previous overvoltage simulation of cable system.
Hongtao Ren, Ying Zhang
doaj +2 more sources
Analysis on switching overvoltage of 500 kV GIS disconnector
Energy Reports, 2022 The 500 kV GIS disconnector of a pumped storage power station is detected to have the risk of operating overvoltage breakdown of the gas chamber. In this paper, the causes of the operating overvoltage of the disconnector of GI equipment are analyzed, and
Hongtao Ren
doaj +2 more sources
High Voltage, 2022 The multiple reignitions of vacuum circuit braker (VCB) while switching off the shunt reactor in an offshore wind farm (OWF) would produce a high overvoltage. The post‐arc process of ion movement in the vacuum interrupter is analysed.
Zhi Zheng +5 more
doaj +2 more sources
Estimation of New Weighted Controlled Switching Overvoltage by RBFN Model [PDF]
Journal of Operation and Automation in Power Engineering, 2020 Mitigating switching overvoltages (SOVs) and conducting well-suited insulation coordination for handling stresses are very important in UHV transmission Lines. The best strategy in the absence of arresters is controlled switching (CS). Although elaborate
M. Hasanpour +2 more
doaj +2 more sources
Analysis of suppression switching overvoltage for CRAFT power supply
Energy Reports, 2022 In order to solve the problem of switching overvoltage for CRAFT, an optimal design is put forward to suppress overvoltage, which aims to enable the converter thyristor work normal.
Yalong Yang +4 more
doaj +2 more sources
Switching Overvoltages in Offshore Cable...
Kalpa Publications in Engineering, 2018 Switching overvoltages are the major concern with the cable system. For insulation coordination and design aspects one should know the range of this overvoltages. Different overvoltages and its effects on the system protection are described here. Some of mitigation techniques for switching transients are also listed.
Nidhi Parmar +3 more
openaire +3 more sources
IEEE Access, 2021 During the switching operation of the non-load power transmission lines, the undisired switching overvoltage issue is inevitable, causing grid voltage oscillations, waveform distortion and other phenomena at the end of the non-load power transmission ...
Bo Yang +4 more
doaj +2 more sources
Impact Factor Identification for Switching Overvoltage in an Offshore Wind Farm by Analyzing Multiple Ignition Transients [PDF]
IEEE Access, 2019 This paper investigates the impact factors of switching transient overvoltage (SOV) in an offshore wind farm (OWF) by analyzing multiple ignitions of a vacuum circuit breaker.
Jiujiang Zhou +4 more
doaj +2 more sources
IEEE Open Journal of Power ElectronicsZero Overvoltage Switching (ZOS) is a method that enables transistors to perform turn-off transitions at maximum speed, thereby minimizing switching losses, while simultaneously preventing overvoltage oscillations despite the high switching speed ...
Nico Schmied +3 more
doaj +2 more sources