Study of Combined Fault Current Limiting Equipment and Operation Strategy for DC Grid

被引：0
|
作者：
Guan E. [1 ]
Dong X. [1 ]
Wang H. [1 ]
机构：
[1] State Key Lab of Control and Simulation of Power Systems and Generation Equipments, Dept. of Electrical Engineering, Tsinghua University, Haidian District, Beijing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2019年 / 39卷 / 11期
基金：
国家重点研发计划;
关键词：
Converter; DC current limiter; DC grid; Operation strategy;
D O I：
10.13334/j.0258-8013.pcsee.181335
中图分类号：
学科分类号：
摘要：
The effective fault current limiting technology is an indispensable key technology for constructing DC grid. Based on the performance analysis of the existing fault current limiting technology, a combined fault current limiting equipment and its operation strategy were proposed. The combined fault current limiting equipment is a combination of DC current limiter and flexible DC converter with the ability of fault current clearance. The proposed operation strategy includes the startup criterion, action logic and timing sequence coordination, and the restart condition as well as timing sequence coordination. The action logic diagram and restart logic diagram of the combined fault current limiting equipment were also given. The proposed scheme was verified by simulation of a four-terminal DC grid as the scene. The simulation results show the effectiveness of the proposed operation strategy. © 2019 Chin. Soc. for Elec. Eng.
引用
收藏
页码：3222 / 3230
页数：8
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