Simulation Modeling and Performance Investigation of Cross switched T-type Multilevel Inverter

Abstract

This paper presents and evaluates the performance of Cross Switched T-type (CT-type) MLI, which uses fewer (Eight) power electronic switches. The cross switched configuration is implemented by connecting two T-type modules back to back with the help of cross-connected switches. The novel configuration can be developed for both symmetrical and unsymmetrical voltage ratings. The model can be expanded to obtain higher voltage levels by cascading to the simple T-type configuration. The major contribution of this novel configuration is that negative voltage levels can be generated with the same configuration. The evaluation and performance investigation of CT-type is carried out with the alternate phase opposition disposition (APOD). The configuration and control approach has reduced the total harmonic distortion with high efficiency of output more effectively than other pulse width modulation techniques. The configuration and its control approach are executed on MATLAB/Simulink and the results are validated