Switched reluctance motor drive for full electric vehicles - Part I: Analysis

This paper describes a control approach to reduce the torque ripple of the switched reluctance motor (SRM) employed as a prime mover in a full electric vehicle (FEV). The SRM drive, which was originally installed in the prototype electric vehicle was facing significant torque ripple at low speeds. The implemented control solution allowed to overcome this problem. The presented approach is based on the extensive mathematical modeling of the SRM drive. The nonlinear characteristics of the SRM have been obtained with the finite element method (FEM) software. The obtained FEM results have further been used in a transient lumped-parameter Matlab/Simulink model of the SRM drive, where the so-called Torque Sharing Function control technique with optimized control parameters was implemented to reduce the torque ripple and also to increase efficiency.