Asymmetric Drive for Switched Reluctance Motor (SRM)

Abstract

Switched Reluctance Motors (SRM’s) with the attributes of lite weight, high torque inertia ratio and winding-less rotor design are considered suitable motors for Electric Vehicles (EV’s). But complex drive design, lack of voltage regulation and torque ripples are the limitations of SRM’s caused by conventional asymmetric-half-bridge drive and gate drive signal used to fed power. In this research the drive design is simplified by suitable modifications in asymmetric-halfbridge drive. Ripple torque and voltage regulation problem is eliminated by implementation of variable-frequency-drive (VFD) for modified asymmetric half-bridge drive (MAHD) to enhance SRM performance. In MAHD switches are minimized and utilized efficiently to boost economic gain and reduce complexity to make its design appealing for EV’s and high-power applications. MAHD is simulated in MATLAB-Simulink environment and tested on SRM hardware drive setup to presents the results effectiveness.