Results 11 to 20 of about 10,256 (232)
Switching overvoltages in offshore wind power grids [PDF]
, 2011 Koblingstransienter i møller, opsamlingsnet, transmissionssystem samt i det eksterne net i havmølleparker både under normal og uregelmæssig drift er de vigtigste fænomener i isolationskoordineringsstudier. De modeller og metoder, som internationale standarder og retningslinjer anbefaler, er dog mangelfulde i relation til de specielle forhold, der gør ...
Arana Aristi, Ivan
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Modeling and enhanced control of hybrid full bridge–half bridge MMCs for HVDC grid studies [PDF]
, 2020 Modular multilevel converters (MMCs) are expected to play an important role in future high voltage direct current (HVDC) grids. Moreover, advanced MMC topologies may include various submodule (SM) types. In this sense, the modeling of MMCs is paramount
Forner, Jaume, Vidal-Albalate, Ricardo
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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
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Insulation stresses of power equipment exposed to non-standard overvoltage waveforms [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2022 During its operation, electrical equipment is constantly exposed to overvoltages of various waveforms, such as lightning discharges, switching operations, faults, etc.
Jasika Ranko +2 more
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Battery choice and management for New Generation Electric Vehicles [PDF]
, 2005 Different types of electric vehicles (EVs) have been recently designed with the aim of solving pollution problems caused by the emission of gasoline-powered engines.
Affanni, A. +4 more
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Energy Reports, 2022 Since the Electromagnetic Transient (EMT) process of the high-voltage submarine cable has a great influence on the safe and stable operation of the transmission system, it is necessary to analyze its EMT process under actual engineering.
Han Li +3 more
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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
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Novel method for restraining 35 kV shunt reactor switching overvoltage – phase controlled breaker
The Journal of Engineering, 2019 Phenomena such as current chopping, arc reignition and equivalent current chopping might appear when cutting off shunt reactor. Overvoltage caused by switching will lead to interphase fault in related equipment and inter-turn insulation damage in the ...
Yiming Zheng +5 more
doaj +1 more source
Electromagnetic transient suppression for thyristor switch‐based auto‐passing neutral section system
IET Power Electronics, 2023 The auto‐passing neutral section (ANS), applied in the traction substation or section post (SP), is one of the effective methods to improve the continuity of power supply, and the electromagnetic transient is the key issue impacting its application value.
Wu Liran +3 more
doaj +1 more source
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
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