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三相并联型有源电力滤波器主要由DSP芯片和主电路两部分所组成。其中主电路根据DSP控制芯片所给出的PWM脉冲信号,来控制逆变器中各个开关器件的导通时间,及时向电网发送符合控制要求的谐波补偿电流。
Three-phase shunt active power filter mainly consists of two parts: the DSP chip and the main circuit. The main circuit according to DSP control chip PWM pulse signal given to control the switching time of the various switching devices in the inverter, timely transmission to the grid in line with the control requirements of the harmonic compensation current.