电工技术学报2017，Vol.32Issue(11)：87-95,9.
三阶段电流转移混合型无弧直流断路器
Hybrid Arc-Less DC Circuit Breaker Based on Three Stage Current Commutation
张国军 1宋飞凡 1李绍明 1代国印1
作者信息
- 1. 辽宁工程技术大学电气与控制工程学院 葫芦岛 125105
- 折叠
摘要
Abstract
In order to solve the switching problem in HVDC circuits,a novel topology structure of arc-less DC breaker is proposed.High-speed mechanical switches generates strong reversal voltage at the moment of disconnecting phase and additional charging is needed for the pre-charging capacitor.To avoid the limitation of the traditional hybrid breaks,we proposed the three-stage current commutation design.We also developed the equivalent mathematical model of the topology structure to analyze the critical commutation moments of several working-phases to obtain the correctness proof.The results show that the new DC breaker ensures arc-less disconnection of mechanical switches and speed up the disconnection.关键词
无弧直流断路器/拓扑结构/混合型断路器/三阶段电流转移/分断时间Key words
Arc-less DC breaker/topology structure/hybrid circuit breaker/three stage current commutation/break time分类
信息技术与安全科学引用本文复制引用
张国军,宋飞凡,李绍明,代国印..三阶段电流转移混合型无弧直流断路器[J].电工技术学报,2017,32(11):87-95,9.
