Seven Level Inverters

This book has provided a brief summary and comparison of different multilevel inverter circuit topologies. The THD with respect to the number of switches is compared in this book. Simulation results of three seven level inverter topologies are discussed. The THD of cascaded seven level inverter is lower than that of diode clamped seven level inverter and flying capacitor seven level inverter. Simulation study shows that by using pulse width modulation (PWM) for pulse generation the THD can be further be reduced. The seven level diode clamped inverter, flying capacitor seven level inverter and cascade multilevel inverter has 12 switches in its topology therefore switching losses are reduced.