高压电器2017，Vol.53Issue(3)：119-125,7.DOI:10.13296/j.1001-1609.hva.2017.03.019
直流微网混合式直流断路器电流转移特性研究
Current Transfer Characteristics of the Hybrid DC Circuit Breaker in DC Micro-grid
摘要
Abstract
The current transfer characteristics of the hybrid DC circuit breaker is very important for its fast breaking and control strategy.In this study,the structure and principle of the hybrid DC circuit breaker were analyzed.Based on the Mayr arc model,IGBTs,RCD snubber circuit and MOV model,a simulation model of the hybrid DC circuit breaker was established to analyze the current transfer characteristics with different parameters of external circuit and transfer branch.And a test platform for the self-designed prototype of hybrid DC circuit breaker was designed to simulate DC short-circuit fault under the micro-grid voltage level of 400 V and to conduct breaking test under different fault current(below 200 A)and different line inductance.The current transfer characteristics obtained from the test were in good agreement with the simulated ones,verifying the effectiveness and accuracy of the present simulation model.This study may provide a reference for design of faster micro-grid hybrid DC breakers.关键词
混合式直流断路器/电流转移特性/开断特性/直流微网Key words
hybrid DC circuit breaker/current transfer characteristic/breaking characteristic/DC micro-grid引用本文复制引用
黄金强,廖敏夫,葛国伟,王善军,卢刚,段雄英,赵琦..直流微网混合式直流断路器电流转移特性研究[J].高压电器,2017,53(3):119-125,7.基金项目
国家自然科学基金资助项目(51277020,51477024,51337001) （51277020,51477024,51337001）
中央高校基本科研业务专向基金资助项目(DUT13YQ102,DUT15ZD234).Project Supported by National Natural Science Foundation of China(51277020,51477024,51337001),Fundamental Research Funds for Central Universities(DUT13YQ102,DUT15ZD234). （DUT13YQ102,DUT15ZD234）
