电力系统及其自动化学报2018，Vol.30Issue(3)：98-105,8.DOI:10.3969/j.issn.1003-8930.2018.03.014
基于IGBT的新型混合式高压直流断路器及控制策略
Novel Hybrid HVDC Circuit Breaker Based on IGBT and Its Control Strategy
陶翔 1张艳霞 1杨国杰 1李莹1
作者信息
- 1. 天津大学智能电网教育部重点实验室,天津300072
- 折叠
摘要
Abstract
A practical and reliable HVDC circuit breaker is an important technical guarantee for the realization of HVDC power transmission,especially the flexible multi-terminal HVDC power transmission.In this paper,the work-ing principle,advantages and disadvantages of the mechanical,solid-state,and hybrid types of HVDC circuit breaker are illustrated.On this basis,a novel hybrid HVDC circuit breaker based on IGBT and its control strategy are put for-ward,which decrease the series number of IGBT substantially,reduce the breaking times of IGBT of solid-state switch, and improve the breaker's ability of breaking heavy current.By adding the RC buffer branch,the voltage rise rate at the two terminals of the circuit breaker is limited during the breaking process.The proposed control strategy has a cer-tain adaptability,which can adjust the conduction number of IGBT parallel branches with the predicted maximum short circuit current of solid-state switch.Finally,a simulation model is built in Matlab/Simulink,which verifies the feasibil-ity of the proposed scheme.关键词
高压直流断路器/IGBT/拓扑结构/控制策略/缓冲支路Key words
HVDC circuit breaker/IGBT/topological structure/control strategy/buffer branch分类
信息技术与安全科学引用本文复制引用
陶翔,张艳霞,杨国杰,李莹..基于IGBT的新型混合式高压直流断路器及控制策略[J].电力系统及其自动化学报,2018,30(3):98-105,8.
