Feasible protection strategy for HVDC system by means of SFCL and passive resonance DC breaker

Autor: Ho-Yun Lee, Mansoor Asif, Kyu-Hoon Park, Bang-Wook Lee
Jazyk: angličtina
Rok vydání: 2019
Předmět:
HVDC power convertors
power grids
HVDC power transmission
power convertors
fault currents
circuit breakers
superconducting fault current limiters
feasible protection strategy
HVDC system
passive resonance DC breaker
high-voltage direct current grid
power grid
effective DC circuit breaker
DCCB
HVDC grid
full-bridge voltage source converter
converter topologies
FB topology
reverse current
higher cost compared
HB technology
DC fault current
feasible fault protection strategy
passive resonance circuit breaker
HB system
suggested protection scheme
full-bridge modular multilevel converter protection
authors
interruption performance
FB-MMC protection scheme
half-bridge voltage source converter
VSC
superconducting fault current limiter
SFCL
PRCB
Engineering (General). Civil engineering (General)
TA1-2040
Zdroj: The Journal of Engineering (2019)
Druh dokumentu: article
ISSN: 2051-3305
DOI: 10.1049/joe.2018.9040
Popis: 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) voltage source converter (VSC). Among these two converter topologies, FB topology has an advantage of reverse current blocking at a much higher cost compared to HB technology and still requires a DCCB for isolating the faulty line. Therefore, HB technology is more realistic to implement HVDC grid economically if DC fault current could be controlled more effectively. In this respect, this article suggests feasible fault protection strategy based on superconducting fault current limiter (SFCL) and passive resonance circuit breaker (PRCB) which could be applied effectively to HB system. To evaluate the performance of suggested protection scheme, comparative study of full-bridge modular multilevel converter (FB-MMC) protection was performed. In addition, the process to determine the optimal range for quenching resistance of SFCL was also investigated. Consequently, the authors’ suggested protection scheme has shown remarkably improved fault current limiting and interruption performance compared to FB-MMC protection scheme.
Databáze: Directory of Open Access Journals
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