Minimization of Torque Ripple in the Brushless Dc Motor Using Direct Torque Control
نویسندگان
چکیده
ermanent Magnet Brushless DC Motor (PMBLDC) is one of the best electrical drives that have increasing popularity, due to their high efficiency, reliability, good dynamic response and very low maintenance. Due to the increasing demand for compact & reliable motors and the evolution of low cost power semiconductor switches and permanent magnet (PM) materials, brushless DC motors become popular in every application from home appliances to aerospace industry. The conventional techniques for controlling the stator phase current in a brushless DC drive are practically effective in low speed and cannot reduce the commutation torque ripple in high speed range. This paper presents the direct torque control PI and Fuzzy controller for minimizing torque ripples of BLDC motor. The BLDC motor is fed from the inverter where the rotor position and current controller is the input. Effectiveness of the proposed control method is verified through MATLAB/SIMULINK Keywords— Terms—Brushless direct current (BLDC) motor, electromagnetic torque ripple, position sensor drive, variable-speed drive.
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