A Hybrid Multilevel Inverter by Using Diode Clamped And Cascaded H-Bridge Inverter Topologies

Abstract

A novel multilevel inverter topology with reduced number of power switches is proposed. A multilevel inverter is a power electronic device that is used for high voltage and high power applications of low switching stresses and lower total harmonic distortion, hence reduces the size and bulk of passive filters. This new topology is based on a combination of conventional diode clamped and H-bridge topologies. The proposed idea has not only achieves high power ratings but also enables the use of renewable energy source .It dramatically reduces the switching losses; cost and low order harmonics and thus effectively improves total harmonic distortion. A 15 level inverter will be simulated with the implementation of PWM techniques and its effects on the harmonics spectrum will bez. The system will be modified with the help of MATLAB/Simulink.