A Fast DC Fault Detection Method Using DC Reactor Voltages in HVdc Grids
A Fast DC Fault Detection Method Using DC Reactor Voltages in HVdc Grids
复制标题
高压直流电网中利用直流电抗器电压的快速直流故障检测方法
DOI:
10.1109/tpwrd.2018.2825779
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发表时间:
2018-04
影响因子:
4.4
通讯作者:
Zhao Chengyong
中科院分区:
文献类型:
--
作者:
Li Chengyu;Gole Aniruddha M.;Zhao Chengyong
This paper proposes a fast dc short-circuit fault detection method for HVdc grids, which relies on the voltage across the dc fault-current-limiting reactor. In the proposed approach, primary detection uses only the single-terminal dc reactor voltage information and is shown to be able to identify the faulted line as well as the faulted pole within 1 ms. The backup detection is primarily required for high resistance faults and uses communication between the two sides of the line. Its speed is dependent on the travel time of signals between the two ends, but will operate, as shown in the paper, typically in 2 ms or less. The approach is justified using analytical calculations and exhaustively validated via electromagnetic transient simulation for pole-to-pole and pole-to-ground faults, different fault resistance, fault locations, and dc reactor values. The validation shows that the method is able to identify all genuine dc line faults, but is not prone to misoperation with ac line faults, different loading levels, and so on.
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影响因子:
4.4
作者:
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通讯作者:
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影响因子:
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作者:
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DOI:
--
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期刊:
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DOI:
10.1109/epe.2015.7309268
发表时间:
2015-09
期刊:
2015 17th European Conference on Power Electronics and Applications (EPE'15 ECCE-Europe)
影响因子:
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