摘要
在PSCAD/EMTDC中搭建发电机断路器开断试验用的威尔合成试验回路,针对回路中辅助断路器和被试断路器在开断过程中承受的瞬间恢复电压(TRV)条件进行仿真计算。计算结果表明,辅助断路器承受的TRV参数远低于标准中规定的TRV参考值,被试断路器的TRV参数满足标准中规定的TRV参考值。进一步,仿真计算了回地母线对试验参数影响,结果表明随着回地母线电感值的增大,时延减小,但峰值电压和峰值时间基本无变化。
The Weil synthetic test circuit for generator circuit breaker breaking test is built in PSCAD/EMTDC,and the simulation calculation is carried out for the TRV conditions of the auxiliary circuit breaker and the tested circuit breaker during the breaking process.The calculation results show that the TRV parameters of the auxiliary circuit breaker are far lower than the TRV reference value specified in the standard,and the TRV parameters of the tested circuit breaker meet the TRV specified in the standard reference value.Furthermore,the simulation results show that the delay time decreases with the increase of inductance,but peak voltage and peak time are basically unchanged.
作者
杜炤鑫
周德生
邹晓峰
冯倩
DU Zhaoxin;ZHOU Desheng;ZOU Xiaofeng;FENG Qian(State Grid Shanghai Municipal Electric Power Company,Shanghai 200437,China)
出处
《电器与能效管理技术》
2021年第3期57-60,共4页
Electrical & Energy Management Technology
