Topology of Current-limiting and Energy-transferring DC Circuit Breaker for DC Distribution Networks  

作　　者：Song Tang Min Chen Guanlong Jia Chenghao Zhang 

机构地区：[1]School of Electrical Engineering,Zhejiang University,Hangzhou,China

出　　处：《CSEE Journal of Power and Energy Systems》2020年第2期298-306,共9页中国电机工程学会电力与能源系统学报（英文）

基　　金：This work is supported by National Key R&D Program(2018YFB0904600).

摘　　要：With the development of power electronic technologies and distributed power generation,DC distribution networks attract increasing attention due to their various advantages compared with traditional AC distribution networks.However,DC fault protection is one of the major issues in DC distribution networks.To improve their reliability and protect the semiconductor devices under DC faults,a current-limiting and energy-transferring DC circuit breaker topology is proposed in this paper.By applying passive components and thyristors,the proposed topology is capable of quickly limiting the fault current and transferring the faulty energy.The working principle,mathematical model and parameter designing method of the proposed topology are presented in this paper.The simulation results verify that the proposed DC circuit breaker could effectively limit the fault current and quickly interrupt the fault current.Cost and conduction power loss evaluation proves the practicality of the proposed topology in medium-voltage DC distribution networks.

关 键 词：DC distribution network energy transfer fault current limiting hybrid DC circuit breaker passive components 

分 类 号：TM571[电气工程—电器] TM561