混合式高压直流断路器关键技术研究  

Research on Key Technology of Hybrid High Voltage DC Circuit Breaker

作　　者：祝友成 ZHU Youcheng(State Grid Hubei Electric Power Co.,Ltd.,Ultra High Voltage Company,Wuhan 430000,China)

机构地区：[1]国网湖北省电力有限公司超高压公司,湖北武汉430000

出　　处：《通信电源技术》2023年第10期34-36,41,共4页Telecom Power Technology

摘　　要：高压直流断路器(Direct Current Circuit Breaker,DCCB)需承载直流线路正常工作时的工作电流,且需在规定时间内接通分断直流线路正常工作时的电流,以及分断直流线路短路故障电流。高压DCCB是确保高压直流输配电网安全、可靠运行的基础。混合式高压DCCB既具备机械式高压DCCB的优点,也具备固态高压DCCB的优点。在分析了各类混合式高压DCCB的拓扑、工作原理基础上,总结了混合式高压DCCB的设计关键技术,如电弧数学模型、串联均压、并联均流等问题。The high voltage Direct Current Circuit Breaker(DCCB)must carry the working current of the DC line in normal operation.In addition,the current in the normal operation of the DC line and the short-circuit fault current of the DC line should be connected within the specified time.High voltage DC circuit breaker is the basis of ensuring the safe and reliable operation of high voltage DC transmission and distribution network.Hybrid HVDC circuit breaker combines the advantages of mechanical HVDC circuit breaker and solid HVDC circuit breaker.On the basis of analyzing the topology and working principle of various types of HVDC circuit breakers,this paper summarizes the key design technologies of hybrid HVDC circuit breakers,such as arc mathematical model,series voltage balancing,parallel current balancing and so on.

关 键 词：混合式高压DCCB 电弧 串联均压 并联均流 

分 类 号：TM561[电气工程—电器]