Hajiaghasi, S., Rafiee, Z., Salemnia, A., Aghamohammadi, M. (2019). Optimal Sensorless Four Switch Direct Power Control of BLDC Motor. Journal of Operation and Automation in Power Engineering, (), -. doi: 10.22098/joape.2019.4859.1374

S. Hajiaghasi; Z. Rafiee; A. Salemnia; M. R. Aghamohammadi. "Optimal Sensorless Four Switch Direct Power Control of BLDC Motor". Journal of Operation and Automation in Power Engineering, , , 2019, -. doi: 10.22098/joape.2019.4859.1374

Hajiaghasi, S., Rafiee, Z., Salemnia, A., Aghamohammadi, M. (2019). 'Optimal Sensorless Four Switch Direct Power Control of BLDC Motor', Journal of Operation and Automation in Power Engineering, (), pp. -. doi: 10.22098/joape.2019.4859.1374

Hajiaghasi, S., Rafiee, Z., Salemnia, A., Aghamohammadi, M. Optimal Sensorless Four Switch Direct Power Control of BLDC Motor. Journal of Operation and Automation in Power Engineering, 2019; (): -. doi: 10.22098/joape.2019.4859.1374

Optimal Sensorless Four Switch Direct Power Control of BLDC Motor

^{}Department of Electrical Engineering, Shahid Beheshti University, Tehran, Iran.

Abstract

Brushless DC (BLDC) motors are used in a wide range of applications due to their high efficiency and high power density. In this paper, sensorless four-switch direct power control (DPC) method with the sector to sector commutations ripple minimization for BLDC motor control is proposed. The main features of the proposed DPC method are: (1) fast dynamic response (2) easy implementation (3) use of power feedback for motor control that is much easy to implement (4) eliminating the torque dips during sector-to sector commutations. For controlling the motor speed, a position sensorless method is used enhancing drive reliability. For reference speed tracking, a PI control is also designed and tuned based on imperialist competition algorithm (ICA) that reduces reference tracking error. The feasibility of the proposed control method is developed and analyzed by MATLAB/SIMULINK®. Simulation results prove high performance exhibited by the proposed DPC strategy.

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