A novel FPGA based off-line control strategy for SRM integrated vehicle propulsion system

Much attention has been recently drawn towards switched reluctance machine (SRM) based vehicle propulsion systems. This is especially due to the excellent extended speed features of SRMs for electric/hybrid electric vehicle propulsion applications. However, the inherently large torque ripple and highly nonlinear characteristics of SRMs present significant challenges from the controller design standpoint. Appropriate design of a control smart scheme is critical, in order to enhance overall performance. This paper proposes a novel field programmable gate array (FPGA) based off-line control strategy, to minimize the overall torque ripple and deal with the nonlinearities. However, due to its ¿off-line¿ feature, the precise inductance model of SRM ought to be determined. For this purpose, this work also involves usage of a suitable current saturation method. Suitable simulation test results are discussed and in-depth analyses, inferences, as well as future research directions are presented.