Research on the cascaded inverter with hybrid control of step waveform and instantaneous feedback

This paper proposes a hybrid control method for cascaded inverter with step waveform and instantaneous current control. With this method, one part of the cascaded unit uses step waveform control, and the other part of the cascaded unit uses instantaneous control. The output voltage comes from the two parts in series. This method can decrease the switching time, reduce the switching loss. The structure of the system is very easy. The theory analysis and simulation is done, and the simulation results show the validity of the proposed method.