Current chopping control based on fuzzy logic rules for switched reluctance motor

Switched reluctance motor has its inevitable torque ripple problem due to its unique structure and severe saturation of magnetic circuit, which affects its industrial development. The traditional current chopping control cannot track the speed deviation well, and the effect of suppressing the torque ripple is not obvious. Therefore, this paper designs a current chopping controller based on fuzzy logic rules, which achieves the purpose of reducing torque ripple more effectively by controlling the PWM on/off duty cycle of each interrupt period. The effectiveness of this strategy is verified by MATLAB / SIMULINK simulation model and experimental platform with three-phase 6/4 SRM. Results show that the proposed strategy can effectively reduce torque ripple and output a constant torque.