基于交交变频的静止进相器研究

Research of static phase-advancers controlled by AC-AC frequency converter

阐述了异步电动机无功补偿的原理,提出了通过交交变频实现异步电动机无功功率补偿的方法。系统采用单片机控制,能够实现自动跟踪、自动补偿以达到提高电动机功率因数、降低电机定子电流、电机温升等目的。

The prineiple of the reactive power compensation for windings rotor induction motor is described. A way of the reactive power of induction motor compensated by AC - AC frequency converter is proposed. Using single chip processor to control, the compensator can realize automatic tracing and automatic compensation so as to increase power factor of the motor, reduce stator current and temperatures of the motor.