Abstract— This method deals with an accurate control process of BLDC motor by reducing torque ripple. The reduction technique of torque ripple is achieves by suppressed error between the command and estimated torques. The conduction and controller control the torques instantaneously. The instant control achieves with the torque controller and torque estimate. The PI controller and back EMF has feed forward controller method controls the high torques in conduction region and outgoing torque ripple are reduced in commutation regions. To avoid ripple high frequency to be set as during commutation. To regulates BUCK BOOST Converter during commutation output of commutation ripples controller has used. The sensorless control applied to detect position of the rotor through optimizing current and reducing torque pulsation. This is the advanced method of Field Oriented Control (FOC) of BLDC motor for non sinusoidal back EMF rotor speed achieved by Simulink. The Back EMF feed forward control is applied to control torque with current dynamics.

Index Terms— Brushless DC motor (BLDC), FOC, Back EMF, BUCK BOOST Converter, PI controller, Sensorless control, Instantaneous torque control, Torque ripple reduction

Cite: A Uma Siva Naga Prasad, "TORQUE CONTROL IMPLEMENTATION SCHEME AND BACK EMF RIPPLE REDUCTION USING BLDC MOTOR," International Journal of Electrical and Electronic Engineering & Telecommunications, Vol. 4, No. 3, pp. 76-84, July 2015.