晶闸管串联调压电容无功补偿方法  

A Method for Capacitor Var Compensation of Thyristor Series Voltage regulation

作　　者：李民族[1] 李秦伟[1] 吴晓男[1] 熊洁[1] 

机构地区：[1]贵州工业大学,贵阳550003

出　　处：《电力电子技术》2000年第1期21-24,共4页Power Electronics

摘　　要：提出一种用晶闸管开关装置 串联变压器来改变电容端电压以调节无功的补偿方法。阐明了这种补偿装置的原理 ,分析了装置的功率特性 ,估计了晶闸管开关换接过程中的断态过电压和过电流大小 ,指出 :降低这种过电压和过电流的技术完全能实现。通过与TSC进行比较 ,证明这种装置成本要比TSC低得多 ,宜于在高压电网中使用。This paper proposes a method for Var compensation by use a device of thyristor switch series transformer to change the capacitor voltage.The principle of the compensation device is described and its power characteristics are analyzed.In the paper the off state voltage and over current during thyristor conversion are estimated.It is pointed that this technology for decreasing over voltage and over current can be realized absolutly.In comparision to TSC,the cost of this device is more lower,and it is suitble for applying to the high voltage net.

关 键 词：无功功率补偿 晶闸管 过电压 电网 

分 类 号：TM714.3[电气工程—电力系统及自动化]