Effect of Pulse Width Modulation on the Performance of Hybrid Cascaded Five Level Inverter

For industrial applications medium power and medium voltage ac drives are more attractive. In order to reduce high dv/dt and to minimize the ripple in torque Multi Level Inverter (MLI) s are proposed. For the realization of Multi Level Inverters, different topologies have been emerging. Among these topologies, hybrid topologies are proven to be better than the conventional topologies. This paper compares the performance of a hybrid cascaded five level inverter with and without using the pulse width modulation technique. The frequency spectrum of the output voltage and currents are compared. For the simulation MATLAB software Simulink is used.