Performance Evaluation of CMLI with Various Fault Conditions

Abstract

In this decade, Cascaded Multilevel Inverter (CMLI) industry claps the pledge with substantial progress and significant accomplishments to improve the performance, evaluation, development and establishment of inverters in renewable energy sources, electrical machine drives and mechanical drive applications and so on. Fault diagnosis in multilevel inverters has taken worthwhile attention into account in this era. This paper evaluates the performance of the five-level CMLI with various fault conditions. The performance evaluation of the CMLI has been done by considering the occurrence of single and multiple switch faults with RL load condition. In RL-Load condition, the current and voltage behavior of the IGBT module at each voltage level have been analyzed at different fault conditions.