500kV母线串联电抗器对瞬态恢复过电压的影响及限制措施  

Effects of 500 kV Bus Sectionalizing Reactor on Transient Recovery Voltage and Countermeasures

作　　者：李金忠[1] 李芳 韩晶[3] 汤浩[1] 范川[4] 丁卫东[4] 

机构地区：[1]中国电力科学研究院,北京100192 [2]青岛供电公司,山东青岛266000 [3]国家电力监管委员会西北监管局,西安710075 [4]西安交通大学电力设备电气绝缘国家重点实验室,西安710049

出　　处：《高压电器》2014年第10期63-69,共7页High Voltage Apparatus

摘　　要：采用母线串联电抗器可以有效地限制500 kV系统的短路电流,但同时会对断路器的瞬态恢复过电压产生一定的影响。笔者以荆门500 kV母线串联电抗器工程项目为背景,利用电磁仿真软件EMTP-ATP研究了在不同故障情况下串联电抗器对断路器瞬态恢复过电压的影响。仿真结果表明,串联电抗器的引入,使得断路器瞬态恢复过电压的陡度远超过标准规定值,在串联电抗器上并联0.1μF以上的电容时,可以将断路器瞬态恢复过电压的陡度限制到标准规定值以内。Bus sectionalizing reactor is used to hmit the magnitude of system. The effects of the bus sectionalizing reactor on transient recovery fault current voltage （TRV） circuit current are investigated in this paper. Taking the 500 kV Bus Sectionalizing Jingmen for example, the effects EMTP-ATP. The results show that of the bus sectionalizing reactor on TRV and connecting a capacitor of more of TRV. the gradient of TRV is higher than the than 0.1 μF in parallel with the serial in 500 kV power while limiting short Reactor Project in are analyzed in detail by using specified value in the standard, reactor can reduce the gradient of TRV.

关 键 词：500 kV母线串联电抗器 瞬态恢复过电压 并联电容 

分 类 号：TM47[电气工程—电器]