电网技术2016，Vol.40Issue(5)：1320-1325,6.DOI:10.13335/j.1000-3673.pst.2016.05.005
一种新型混合式直流断路器
A New Hybrid Circuit Breaker for DC-Application
摘要
Abstract
A novel hybrid breaker topology with forced commutation is proposed in this paper to achieve fast breaking of DC line short-circuit current in DC transmission and distribution system. By adding forced commutation circuit in the conduction branch, the breaker is able to interrupt the DC fault current in several milliseconds. Furthermore, zero-current switch of mechanical switchgear is achieved in the topology. And the breaker could be maintained in conducting state even if the gate driver of the semiconductor devices suddenly experiences blackout, so the reliability of the breaker is improved. The operation and design principles of the proposed hybrid breaker are presented, and the simulation is carried out which verifies the breaker is able to break DC short circuit current in a short time.关键词
直流断路器/直流电网/高压直流断路器/混合式断路器/开关装置/电网分布式保护Key words
DC circuit breakers/DC grid/HVDC circuit breakers/hybrid circuit breaker/switchgear/power distribution protection分类
信息技术与安全科学引用本文复制引用
高阳,贺之渊,王成昊,魏晓光,杨兵建,客金坤,陈龙龙..一种新型混合式直流断路器[J].电网技术,2016,40(5):1320-1325,6.基金项目
国家能源应用技术研究及工程示范项目(NY20140301A)；国家电网公司科技项目“大电流直流断路器应用可行性研究及样机研制”。Project Supported by National Energy Application Technology Research and Engineering Demonstration Project (NY20140301A)) and Science and Technology Foundation of the State Grid Corporation of China, Feasibility Study and Prototype Development of DC Circuit Breaker” （NY20140301A）
