具有谐波抑制及功率因数校正的并联补偿电路

介绍在交流侧并联补偿电源的方法消除整流二极管加电容滤波电源电路中的电流谐波，提高电源交流侧的功率因数。文中用电压提升电路作为补偿电源，在补偿电源中用脉宽调制(PWM)和电流闭环的方法实现电流跟踪，使流入补偿电源的电流按给定的波形变化，从而使流入组合电源的总电流恢复成正弦波形，同时也使电源的功率因数近似为1。

A parallel compensator with harmonic reduction and power factor correction

In order to eliminate the current harmonic in the nonlinear circuit,such as diode bridge rectifier with capacitor filter,and boost power factor this circuit a convert,called compensator device,connected in parallel with AC source may be used to achieve these objectives.In this compensator device a PWM control strategy and current loop are used to ensure the input current flow into the compensator device is changing with the shape of current reference,and make the total current waveform flow into the system si-nusoidal,at the same time ,ensure the power factor in AC side approach to1.