Multilevel Inverters Based On Space Vector Pulse Width Modulation Technique

In this paper, a simplified space–vector pulse width modulation technique for multilevel inverters is proposed. This method is based on the simplification of the space–vector diagram of a five level inverter into that of a three level inverter. In turn, the three level inverter space vector diagram is simplified into that of two level inverter. Hence, the algorithm of five level space-vector pulse width modulation become very similar to that of conventional two level inverter If simplified by the proposed method, all the remaining procedures necessary for the three-level and five level inverter SVPWM are done like conventional two-level inverter and the execution time is greatly reduced. The dc-link neutral-point potential control algorithms are implemented more easily. And the proposed method can be applied to the multi-level inverters above three and five level. KeywordsMultilevel inverter, three level inverter, five level inverter, and space-vector PWM method