基于变耦电抗法的无功补偿系统理论研究  

The Research on a Novel Controllable Reactance in TCR-SVC System

作　　者：叶刚[1] 任士焱[1] 

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074

出　　处：《仪器仪表学报》2005年第z1期912-913,共2页Chinese Journal of Scientific Instrument

摘　　要：分析了TCR并联电容后其基波阻抗与晶闸管触发角之间的关系,对其存在的死区问题进行了具体讨论。利用变耦电抗法,即通过晶闸管开关装置控制的多种联结方式,改变二次侧的互感器的匝数,从而改变其磁耦合来调节互感器一次侧的等效电抗。在调节系统无功功率时可有效地避免死区,降低设备容量。The mathematical relationship between the fundamental impedance and the firing angle of the thyristor is derived,and the regulated dead-zone is discussed.It proposes the regulating principle of thyristor-controlled reactance series compensation by adjustable coupling,which can change the secondary number of turns and magnetic coupling of the mutual-inductor.Its equivalent reactance can be regulated.When reactive power is regulated,the dead-zone can be avoided and the capacity of compensating equipment can be obviously reduced.

关 键 词：晶闸管控制的串联补偿 变耦式可控电感 串联互感器 基波阻抗 

分 类 号：TH7-55[机械工程—仪器科学与技术]