真空断路器开断并联电抗器的三相建模  

Three-phase Modeling of Vacuum Circuit Breakers Switching off Shunt Reactors

作　　者：杜宁[1] 关永刚[1] 张景升 牛继荣[3] 姚树华[3] 徐国政[1] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084 [2]内蒙古电力(集团)有限责任公司,呼和浩特010020 [3]内蒙古电力科学研究院,呼和浩特010020

出　　处：《高压电器》2010年第3期6-9,14,共5页High Voltage Apparatus

基　　金：国家自然科学基金(50907037)

摘　　要：针对40.5 kV真空断路器开断并联电抗器的工况,为了消除现有仿真模型的不足,笔者简单综述了真空断路器开断感性小电流的仿真研究的现状,对一种型号的40.5 kV真空断路器进行了试验,得到其触头间介质动态绝缘强度曲线、高频电流熄灭判据和截流数据,并建立了断路器开断并联电抗器的三相仿真模型,同时考虑了三相间的耦合。应用ATP-EMTP软件进行了该型号真空断路器开断并联电抗器的三相仿真研究,并与现场试验结果进行了比对,仿真结果与试验结果大致相符。Aiming at the operating conditions of 40.5 kV vacuum circuit breaker switching off shunt reactors, and in order to eliminate deficiencies in the existing simulation model, a general review of simulating researches on vacuum circuit breakers switching off small reactive current is given. A three-phase model of 40.5 kV circuit breakers switching off shunt reactors is set up based on the experimental results of a type of 4.5 kV vacuum circuit breaker, including the dielectric strength characteristics, high-frequency current quenching criteria and chopping current. And the interphase coupling is considered in the model. A three-phase simulation is conducted for the transient process of the vacuum circuit breaker switching off shunt reactors via ATP-EMTP, and the simulation results coincide almost with experimental results.

关 键 词：真空断路器 并联电抗器 三相建模 仿真 ATP-EMTP 

分 类 号：TM561.2[电气工程—电器]