电力系统自动化2017，Vol.41Issue(4)：105-112,8.DOI:10.7500/AEPS20160712003
多端直流系统分区协调保护策略
Coordinated Partition Based Protection Strategy for Multi-terminal DC Systems
吴婧 1姚良忠 2王志冰 2Md Habibur RAHMAN 2LieXU 3鲁宗相3
作者信息
- 1. 清华大学电机工程与应用电子技术系,北京市100084
- 2. 新能源与储能运行控制国家重点实验室(中国电力科学研究院),北京市100192
- 3. 斯克莱德大学电子与电气工程学院,格拉斯哥G1 1XQ,英国
- 折叠
摘要
Abstract
In view of the problems of fault protection for the multi-terminal DC system,the DC fault characteristics and the challenges that multi-terminal DC system protection are facing are analyzed,and the existing fault protection methods for multi-terminal DC system are summarized.Based on a typical topology of the multi-terminal DC system,the partition principles of DC zones and a coordinated partition-based protection strategy are proposed,with the objective of using a minimum number of DC breakers.The method uses the DC breakers to separate the faulted DC zone from the healthy DC zones.Thus the healthy DC zones can be restored to normal operation quickly after the fault,and the faulted zone can be protected by AC breakers and DC switches which are already installed at the AC and DC side of modular multilevel converters (MMC).Finally,the simulation results based on MATLAB/Simulink platform show that the coordinated partition based protection strategy is effective and economical.关键词
多端直流系统/直流故障特性/直流断路器/直流区域划分Key words
multi-terminal DC system/DC fault characteristics/DC breaker/DC zone partition引用本文复制引用
吴婧,姚良忠,王志冰,Md Habibur RAHMAN,LieXU,鲁宗相..多端直流系统分区协调保护策略[J].电力系统自动化,2017,41(4):105-112,8.
