Reduction of Common-Mode Voltage Using Novel T-Type Multilevel Inverter for EV Application

MLIs are very important and essential for controlling the power at medium voltage and very high power. A new T-type MLI based on the pulse width modulation method has been presented in this paper. A five-level voltage and a minimum common-mode voltage are the main circuit's objectives. A design layout and its corresponding output for the proposed system design are included in this article to test its effectiveness and feasibility. The proposed research seeks to enhance the implementation of a multistate switching cell in the PWM signals given to the gate signals of the MOSFETs. To obtain the five levels of voltage output with a lower common-mode voltage. Thus, the losses are reduced and the Efficiency is increased in the inverter. The total number of semiconductor switches is also reduced. This suggested inverter is simulated using Matlab/Simulink application software. The suggested architecture maintains excellent efficiency and dependable operation while reducing the number of switching components. Simulation findings verify the suggested inverter configuration, showing that it can accomplish reliable and effective power conversion for medium-voltage and high-power applications, the novel T-type MLI structure provides an affordable and scalable solution. The reduced common mode voltage will reduce the circulating bearing current problems in the application of induction motor drive.