中压配电网消弧线圈分布式补偿的仿真研究  

Simulation Study on Distributed Compensation of Arc Suppression Coil in Medium Voltage Distribution Network

作　　者：严倚天 赵志刚[1] 严浩军 YAN Yitian;ZHAO Zhigang;ZHAO Zhigang(Shenyang Institute ofEngineering,Shenyang 110000,China;State Grid Ningbo Power Supply Company,Ningbo Zhejiang 315000,China)

机构地区：[1]沈阳工程学院,沈阳110000 [2]国网浙江省电力有限公司宁波供电公司,浙江宁波315000

出　　处：《浙江电力》2018年第3期42-47,共6页Zhejiang Electric Power

摘　　要：随着中压配电网电缆线路的增多,系统对地电容电流不断增大,致使消弧线圈变电站内集中补偿产生了一些问题。根据消弧线圈补偿原理,对其在变电站外的分布式补偿进行了仿真和分析,结合现场实际应用证明:消弧线圈的站外分布式补偿,其电感电流能抵消系统对地电容电流,有效降低接地点残流,解决了变电站内消弧线圈集中配置或增容困难的问题。With the increase of the cable outlet in the medium voltage distribution network,the earth capaci-tance current of the system is increasing,which causes some problems in the centralized compensation of the arc suppression coil substation.According to the principle of arc suppression coil compensation,the distribut-ed compensation outside the substation is simulated and analyzed.The field application shows that the induced current can effectively cancel the earth capacitance current of the system and reduce the ground residual flow,by which centralized configuration of arc suppression coil and capacity increase difficulties are solved.

关 键 词：中压配电网 中性点 对地电容电流 消弧线圈 分布式补偿 

分 类 号：TM862[电气工程—高电压与绝缘技术]