Modeling and nonlinear control of a switched reluctance motor to minimize torque ripple

This paper proposes a nonlinear model to characterize a 10/8 switched reluctance motor (SRM) in terms of Fourier series expression of phase self-inductance under the assumption of negligible mutual effect and various losses. It introduces a torque ripple minimization method by means of indirect dynamic torque control, then describes the corresponding control conception based on a torque controller (for regulating phase reference current) and a fuzzy logic controller (for adjusting turn-on and turn-off angles). Simulation results have shown the feasibility of the developed approach to minimize the torque ripple.