Modeling and Simulation of Switched Reluctance Motor Double Closed Loop Control System

Abstract

This paper presents the modeling, simulation, and speed control aspects of a 3-phase 6/4 switched reluctance motor (SRM) drives. Fourier series expression of phase self-inductance under the assumption of negligible mutual effect and various losses is introduced to describe the nonlinear dynamic model of SRM. By virtue of Matlab/Simulink, the models of various subsystems are achieved and the modeling procedure is described in detail. By the organic combination of subsystems, the whole simulation model of SRM drives is established. In addition, to improve the adjustable speed performance of SRM drives, the double closed loop control strategy based on a chopping controller in the current loop and a fuzzy+PI controller in the speed loop is proposed. Simulation results have shown the rationality of model and validity of control strategy. The model developed here can be widely used and is easy to modify, which offers a good platform for choosing the best control strategy