Results 51 to 60 of about 232 (148)
Integrated HVDC Circuit Breakers With Current Flow Control Capability [PDF]
IEEE Transactions on Power Delivery, 2018 Two key problems in meshed high-voltage direct current (HVDC) transmission grids are managing line power flows and protection against dc faults. Current flow controllers (CFCs) will be required to balance cable currents in meshed dc grids, in order to prevent individual line power capacity limits restricting overall power flow in the grid.
Cwikowski, Oliver +6 more
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Research on the Modification Plan of HVDC Transfer Switch Arrester
南方能源建设, 2022 [Introduction] During the earth return and metallic return mode conversion of China's HVDC transmission projects in operation, several MRTB (metallic return transfer breaker) or ERTB (earth return transfer breaker) oscillation platform arrester damage ...
LU Yuxin +5 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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.
openaire +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source