Modeling simulation and performance analysis of switched reluctance motor operating with optimum value of fixed turn-on and turn-off switching angles

The value of turn-on and turn off angles are important factors in developing positive or negative, high or low electromagnetic torque in switched reluctance motor (SRM) and lead to stable or unstable operation of the drive. This paper presents the performance of a 4 kW 8/6-pole configuration SRM drive through modeling and simulation for optimum and fixed value of switching-on and -off angles. Normally, these switching angles depend upon the motor speed and are varied with acceleration. In this paper, the analysis is conducted to arrive at an optimum pair of switching angle for full-load starting and stable operation of the drive. The simulated performance of SRM drive system is presented to analyze the effect of switching angles on transient and steady state performance of the drive in terms of speed, current and torque response. The merit of fixed switching angle control schemes is highlighted.