Design of three-phase five-level cascaded H bridge inverter with boost converter

摘要

Multilevel inverters (MLI) are the most dependable and suitable inverters for high power applications that lessens the Total Harmonic Distortion (THD). The significant difficulty of these MLIs is the use of an excessive amount of switches, which introduces the in-system losses, the complexity of the circuit, size, and cost, etc. This paper suggests a design of three-phase five-level-cascaded H-bridge (CHB) inverter with a boost converter (BC). The proposed methodology provides the novel cascaded multilevel inverter with six switches for avoiding the loss, cost, and improve the voltage stability. A comprehensive process for computing the necessary voltage level on each phase has been analysed. The boost converter improves the output voltage with a reduction in THD. The mode of operation for suggested inverter topology has been described. The design of the proposed 3-phase 5-level CHB inverter and simulation outcomes are performed by the MATLAB/Simulink. It is comparing to existing methods, and the proposed method is using a few amounts of power components.