CASCADED MULTILEVEL INVERTER WITH MULTICARRIER PWM TECHNIQUES

Multilevel inverter has so many advantages than conventional two level inverter. As the number of level increases the output approaches to a pure sinusoidal wave.Multilevel inverter using both fundamental frequency switching and higher frequency switching. In this paper discuss only about higher frequency switching.In higher frequency switching we are using two signals, one is reference signal and the other one is carrier signal. For Sinusoidal PWM technique sinusoidal wave be the reference signal and triangular wave be the carrier signal. This paper discuss about SinePWM Techniques with multicarrier. Simulation done on 7 level cascaded HBridge inverter with multicarrier SinusoidalPWM technique.