低压无功补偿中串联电抗器选择分析  

Choice Analysis on Series Connected Reactor in Low Voltage Reactive Power Compensation

作　　者：袁松林 郑凯 倪高俊 YUAN Songlin;ZHENG Kai;NI Gaojun(The Architectural Design&Research Institute of Zhejiang University Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]浙江大学建筑设计研究院有限公司,浙江杭州310000

出　　处：《现代建筑电气》2020年第3期14-16,共3页Modern Architecture Electric

摘　　要：在阐述并联电容器对谐波放大的原理基础上,分析了流入系统回路和并联电容器回路的谐波电流与谐波次数的关系,分析结果表明:电容器回路串联电抗器电抗率与谐波源的最低谐波次数满足条件时,可避免发生串联谐振,同时限制谐波源引起电容器或电容器组的过电流。The principle of harmonic amplification caused by the shunt capacitor was expounded.The relation between harmonic current which flowing into the system circuit and the shunt capacitor circuit,and harmonic number was analyzed.The results of analysis indicate that when the reactance ratio of capacitor circuit series connected with reactor,and the minimum frequency of the harmonic source meet the certain condition,the occurrence of series-resonant can be avoided,while the over current of capacitor or capacitor bank caused by harmonic source can be limited.

关 键 词：电容器 低压并联电容器装置 电抗器 电抗率 无功功率 

分 类 号：TM401[电气工程—电器]