A Coordinated Control Method for Active Power Feedforward of Dual PWM Converter

The dual PWM converter control strategy is mainly divided into direct control and power coordination control. This paper introduces the dual PWM variable frequency speed regulation scheme of active power feedforward control, and adds the compensation amount corresponding to the active power of the inverter to the given value of the active current on the rectifier side, then when the operating state of the asynchronous motor changes, it will not directly change the size of the capacitor voltage on the DC side, but directly change the size of the active current on the rectifier side, thereby reducing the fluctuation of the DC bus voltage, improving the dynamic response performance of the system, and making it possible to reduce the size of the DC bus capacitance. Finally, Matlab/Simulink simulation of the control scheme is carried out to verify its correct feasibility.