Adaptive Harmonic Control against DC Input Voltage Fluctuation of PWM Inverter by Instantaneous Integration

순시적분에 의한 PWM인버어터의 직류 입력전압 맥동에 대한 고조파 적응제어

A PWM switching control strategy based on instantaneous integration concept for reducing hamonic components of inverter system with fluctuating input voltage is presented. Applying this strategy to single phase full bridge PWM inverter through bipolor switching method and unipolor switching method, reduction of hamonic components of output voltage and current is demonstrated through simulation. The system operation is examined and confirmed by experiments.