A Multilevel Inverter Fed High Speed Electric Drive Exhaust gas Energy Recovery Applications

Abstract

This paper deals with the solutions for developing the direct coupled electric drive to be used in combination with a radial turbo-expander for exhaust energy recovery in automotive applications. The descriptions of project realization of both the axial-flux permanent-magnet (PM) generator and the three-level boost-rectifier converter, which results as the preferred topology for the controlled rectifier, are given. The high rotational speed of the direct-driven PM generator results in high electric fundamental frequency also, which is challenging for the electric drive control issues.the proposed concept can be implemented for multilevel inverter fed high speed electric drive applications by using Matlab/Simulation software and the results are verified.