Results 41 to 50 of about 34,212 (146)

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, Mansoor Asif, Kyu-Hoon Park, Bang-Wook Lee   +3 more
doaj   +1 more source

HVDC Circuit Breaker Development and Applications in VSC-HVDC Transmission Project

IOP Conference Series: Earth and Environment, 2020
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 ...
Yue-Feng Yang, M. Ren, Junzheng Cao, Wang Liu, Xiong Zhan, Cai-Ping Zhao   +5 more
semanticscholar   +1 more source

A novel HVDC circuit breaker for HVDC application

International Journal of Electrical Power & Energy Systems, 2019
Hybrid high voltage direct current circuit breakers (DCCBs) are capable of interrupting fault current within a few milliseconds, but this technology has high capital cost, especially in a meshed HVDC grid.
Meng Zhou, W. Xiang, Wen-Ping Zuo, Wei-Xing Lin, Jinyu Wen   +4 more
semanticscholar   +1 more source

DC protection for a multi-terminal HVDC network including offshore wind power, featuring a reduced DC circuit breaker count

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, Derrick Holliday, Derrick Holliday, Stephen J. Finney   +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, Yu Hua, Jinyu Wen, Meiqi Yao, Naihu Li   +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

A Novel Topology of Hybrid HVDC Circuit Breaker for VSC-HVDC Application

Energies, 2017
The use of high voltage direct current (HVDC) circuit breakers (CBs) with the capabilities of bidirectional fault interruption, reclosing, and rebreaking can improve the reliable and safe operation of HVDC grids.
Van-Vinh Nguyen, Ho-Ik Son, Thai-Thanh Nguyen, Hak-Man Kim, Chan-Ki Kim   +4 more
doaj   +1 more source

Study on a Novel Energy-Dissipation Branch for 600 kV DC Circuit Breakers Based on Ga–In–Sn Liquid Metal

Electricity
With the increase in voltage levels, higher requirements are imposed on the energy-dissipation capability of high-voltage direct current (HVDC) networks. Existing energy-dissipation schemes cannot satisfy the demands of future HVDC systems. In this paper,
Yaguang Ma, Zhitan Liu, Zongbao Gao, Sheng Yang, Ke Zhuang, Zheng Li, Guangning Wu, Aozheng Wang, Yanyu Chen, Yuehong Dong, Guoqiang Gao, Lei Qiao   +11 more
doaj   +1 more source

Parameterization of Circuit Breakers for HVDC Transmission Line Between Egypt and the Kingdom of Saudi Arabia Toward Restriking Voltage

IEEE Access
The high voltage direct current (HVDC) transmission lines represent the prospective way for long-distance transmission between countries, remote areas, and offshore wind farms to decrease power loss.
Tamer Eliyan, Mahmoud Elsisi, Mamdouh L. Alghaythi, Meshari S. Alshammari, Fady Wadie   +4 more
doaj   +1 more source

Research and experiment of a current-limiting HVDC circuit breaker

The Journal of Engineering, 2019
Existing mechanical HVDC circuit breakers (CB) are capable of interrupting HVDC currents within several tens of milliseconds, but this is too slow to satisfy the requirements of a reliable HVDC grid.
Yi Du, Junpeng Deng, Hongyang Lin, Huan Zheng, Kangli Xiang, Yu Shen   +5 more
doaj   +1 more source