高压电器2017，Vol.53Issue(3)：147-153,159,8.DOI:10.13296/j.1001-1609.hva.2017.03.023
真空断路器开断35kV并联电抗器的三相建模仿真与过电压抑制研究
Three-phase Modeling of the Vacuum Circuit Breaker Switching off 35 kV Shunt Reactors and Overvoltage Suppression
摘要
Abstract
To explore the generation mechanism of overvoltage when a vacuum circuit breaker(VCB) switches off 35 kV shunt reactors and to improve the existing simulation model,a general review of simulation researches on vacuum circuit breakers switching off small reactive current is firstly given.Fortran language is used to write the control program in MODELS module,an arc reignition three-phase simulation model of a 40.5 kV VCB switching off shunt reactors is established in ATP-EMTP to simulate the field tests.The VCB and the cable's three-phase parasitic parameters are considered in the simulation.In the case of no protection for the researched loop,the load-side voltage of the VCB is 235 kV (7.1 p.u.),and the ground voltage reaches 145 kV (4.4 p.u.).Simulation results show that the multi-reignitiion of three phases and the virtual closure phenomenon mainly cause such overvoltage accidents.Finally,some suppression measures against the overvoltage induced by switching off the shunt reactors are presented.关键词
真空断路器/ATP-EMTP/并联电抗器/多次重燃/虚拟截流/过电压Key words
vacuum circuit breaker(VCB)/ATP-EMTP/shunt reactor/multi-reignition/virtual closure/overvoltage引用本文复制引用
彭庆军,姜雄伟,司马文霞,杨庆,张照辉,杨鸣..真空断路器开断35kV并联电抗器的三相建模仿真与过电压抑制研究[J].高压电器,2017,53(3):147-153,159,8.基金项目
中国南方电网有限责任公司科技项目(K-YN2014-104) （K-YN2014-104）
国家重点实验室重点研究项目(2007DA10512714104).Project Supported by the Science and Technology Project of China Southern Power Grid Co.,Ltd.(K-YN2014-104),Key Research Project of the State Key Laboratory of Power Transmission Equipment & System Security and New Technology(2007DA10512714104). （2007DA10512714104）
