Results 41 to 50 of about 234 (147)
A capacitor-based DC circuit breaker for HVDC power grid
Frontiers in Energy Research, 2022 DC circuit breakers (DCCBs) are the critical equipment to isolate faults in high-voltage DC grids. The improvement of interruption performances of capacitor-based DCCBs (C-DCCBs) has been widely researched.
Zhuang Xu +4 more
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High Voltage, 2019 Mechanical circuit breakers (MCBs) are the limiting component for current injection HVDC circuit breakers. Improving their interruption performance reduces requirements for capacitance and inductance needed in the injection circuit and thus space use and
Tim Schultz +5 more
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DC Fault Analysis and Clearance Solutions of MMC-HVDC Systems
Energies, 2018 In this paper, the DC short-circuit fault and corresponding clearance solutions of modular multilevel converter-based high-voltage direct current (MMC-HVDC) systems are analyzed in detail.
Zheng Xu +3 more
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Feasible protection strategy for HVDC system by means of SFCL and passive resonance DC breaker
The Journal of Engineering, 2019 The key obstacle in implementing high-voltage direct current (HVDC) grid, which is considered as the future of power grid, is the absence of effective DC circuit breaker (DCCB). At present, HVDC grid could be based on half-bridge (HB) or full-bridge (FB)
Ho-Yun Lee +3 more
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A Review of HVDC Circuit Breaker
International Journal Of Engineering And Computer Science, 2016 The increasing interest in development, operation and integration of large amount of renewable energy resources like offshore wind farms and photovoltaic generation in deserts leads to an emerging demand on development of multiterminal high voltage direct current (MTDC) systems.
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Coordinated control of DC circuit breakers in multilink HVDC grid
CSEE Journal of Power and Energy Systems, 2021 High voltage DC grid is developing towards more terminals and larger transmission capacity, thus the requirements for DC circuit breakers (DCCB) will rise. The conventional methods only use the faulty line DCCB to withstand the fault stress, while this paper presents a coordination method of multiple DCCBs to protect the system.
Xibei Zhao +4 more
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The Journal of Engineering, 2019 Large offshore wind farms located far from shore, as are being planned or built in the North Sea, will require high-voltage DC (HVDC) transmission to shore, and multi-terminal HVDC could offer further benefits.
Max A. Parker +3 more
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Research on fast solid state DC breaker based on a natural current zero-crossing point
Journal of Modern Power Systems and Clean Energy, 2014 The DC fault characteristics of voltage source converter based high voltage direct current (VSC-HVDC) systems are analyzed in this paper. The phenomenon whereby the capacitor on DC side discharges quickly during a DC fault contributes to a large short ...
Wang Xiang +4 more
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Optimisation of commutation circuit parameters for DC vacuum circuit breakers
The Journal of Engineering, 2019 As the environmental problems caused by the consumption of the non-renewable fossil energy are getting increasingly serious, the new energy power generation has received wide attentions.
Deen Yu, Hai Chen, Wei Liu, Xiaoming Liu
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HVDC Circuit Breaker Development and Applications in VSC-HVDC Transmission Project
IOP Conference Series: Earth and Environmental Science, 2020 Abstract High voltage direct current (HVDC), especially voltage source based HVDC (VSC-HVDC), transmission technology has been expanding in recent decades. HVDC circuit breaker therefore attracts significant interest due to its abilities of current interruption and fault isolation.
Yuefeng Yang +5 more
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