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Multilevel converter topology with reduced switching elements for Electric Vehicle

Power electronic researchers are more attracted to renewable energy sources for electric vehicles in future scientific world. An efficient power electronic converter is a main and common topic for research in this area. Multilevel inverters have proven to be a solid technology in electric drive application. In this proposal, an electrical part of a power-train for Electric Vehicles using an advanced multilevel converter topology is introduced, discussed and analysed. This paper presents the principle of operation of the topology where more output voltage levels can be obtained using less number of switching components. Reduction in the number of switching devices which also means reduction in the number of gate drivers results in smaller size and low implementation cost. A comparison between the advanced T-type converter and other multilevel converter topology is also discussed. This converter topology is designed for five levels and can be extended for more levels. A switch function model is derived and discussed for the proposed T-type converter topology. A mathematical model for the converter is implemented with Matlab/Simulink. The simulation results are analysed to evaluate the converter.