A configuration of multi-circuit HVDC transmission system for offshore wind power plants and its protection scheme for DC line faults

被引：0
作者：
Nakayama H. [1 ]
Sano K. [1 ]
机构：
[1] Department of Electrical and Electronic Engineering, Tokyo Institute of Technology, NE-11, 2-12-1, O-okayama, Meguro-ku, Tokyo
来源：
IEEJ Transactions on Power and Energy | 2020年 / 140卷 / 11期
基金：
日本学术振兴会;
关键词：
DC line fault; Fault clearance; HVDC transmission system; Modular multilevel converters; Protection scheme;
D O I：
10.1541/ieejpes.140.795
中图分类号：
学科分类号：
摘要：
This paper proposes a configuration of multi-circuit HVDC system and its protection scheme for DC line faults for improving reliability. The system consists of multiple DC lines connected in parallel to a DC bus through diodes. These diodes can instantaneously disconnect a faulted line, with the result that no fault current flow from the other non-faulted lines. It can immediately clear the DC fault current by shorting the submodules of the modular multilevel converter (MMC) in the supply side. Simulation results confirm the validity of the proposed protection scheme under a pole-to-ground fault (DC1LG) and a pole-to-pole fault (DC2LG). © 2020 The Institute of Electrical Engineers of Japan.
引用
收藏
页码：795 / 802
页数：7
相关论文
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