Finite Control-Set Predictive Power Control of BLDC Drive for Torque Ripple Reduction

Due to advantages as high efficiency and high power density, brushless direct current (BLDC) motor has been used in a wide variety of applications. However, in conventional 120º conducting drive operation it develops significant torque ripple as a result of phase commutation. To reduce torque undulations, in this paper is proposed a power control based on Finite Control-Set Model based Predictive Control (FCS-MPC). The relationship between the control of the power delivered to rotor and torque ripple reduction is presented. The effectiveness of commutation torque ripple reduction of proposed method is presented in comparison with conventional torque control strategy. The results of proposed predictive control approach demonstrate fast torque response with no adjustable gains needed and operates with model variables on stationary reference frame.