一种低压无功补偿主电路与触发控制方法  

A Main Circuit of Low-voltage Reactive Power Compensation and Trigger Control Method

作　　者：金杰 周灵江 王林挺 陈鑫 JIN Jie;ZHOU Lingjiang;WANG Linting;CHEN Xin(State Grid Zhejiang Linhai Power Supply Company,Linhai 317000,China;Taizhou Power Supply Company,State Grid Zhejiang Province Power Supply Company,Taizhou 318000,China)

机构地区：[1]国网浙江临海市供电公司,浙江临海317000 [2]国网浙江省电力有限公司台州供电公司,浙江台州318000

出　　处：《电工技术》2019年第22期79-81,83,共4页Electric Engineering

摘　　要：低压系统无功补偿多采用晶闸管投切电容器(TSC),文章对TSC装置的投切过程进行了分析,指出应采用晶闸管电压过零点与电源峰值点相结合的方式进行TSC投入控制。对三相TSC的电路进行了分析,提出了一种采用三晶闸管元件的简化TSC方案,并给出了其触发控制方法。该方案接线简单,控制方便,可适用对称补偿的应用场所。The thyristor switching capacitor(TSC)is mostly used in the reactive power compensation of low voltage system.The switching process of the TSC device was analyzed.It was pointed out that the TCS input control should be carried out by combining the thyristor voltage zero-crossing point with the power supply peak point.Through the analysisof the three-phase TSC circuit,a simplified TSC scheme using triode thyristor wasproposedand the trigger control method wasgiven.The scheme had simple wiring and convenient control,and could be applied to a symmetric compensation application place.

关 键 词：低压无功补偿 过零投切 电源峰值点 三晶闸管 

分 类 号：TM7[电气工程—电力系统及自动化]