一种电容器组串联电抗器谐波过载保护的实现方法  

Achievement Method on Harmonic Overload Protection for Series Reactor of Capacitor Bank

作　　者：俞永军 张帆 骆福权 蔡重凯 贾跟卯 姚建生 陈晓宇 YU Yongjun;ZHANG Fan;LUO Fuquan;CAI Chongkai;JIA Genmao;YAO Jiansheng;CHEN Xiaoyu(State Grid Shaoxing Power Supply Company,Zhejiang Shaoxing 312008,China;State Grid Zhejiang Power Co.,Ltd.,Hangzhou 310007,China;Zhuhai Lanruimeng Electric Co.,Ltd.,Guangdong Zhuhai 519000,China)

机构地区：[1]国网浙江省电力公司绍兴供电公司,浙江绍兴312008 [2]国网浙江省电力有限公司,杭州310007 [3]珠海蓝瑞盟电气有限公司,广东珠海519000

出　　处：《电力电容器与无功补偿》2019年第6期54-57,共4页Power Capacitor & Reactive Power Compensation

摘　　要：谐波背景条件下,电抗器的谐波敏感度远大于电容器,特别是铁芯电抗器。本文介绍一种有别于传统只单纯考虑谐波有效值的电容器组谐波保护,提出通过测量考虑谐波频率的工频等效电流及工频等效电压,实现电容器组用铁芯电抗器过电流保护和噪音控制的方法,并通过真型样机在实验室及现场投运验证。Under harmonic background conditions,the harmonic sensitivity of reactors is much greater thanthatofcapacitors,especially iron core reactors.In this paper,a new type of harmonic protection for capacitor bank,which is different from the traditional only considering the harmonic effective value is introduced.The method for over current protection and noise control of core reactor for capacitor bank by way of measuring power frequency equivalent current and voltage considering harmonic frequency is proposed and the real prototype passed the operation verification in the laboratory and site.

关 键 词：电容器组 谐波保护 等效电流 等效电压 

分 类 号：TM4[电气工程—电器]