Optimal Sensorless Four Switch Direct Power Control of BLDC Motor

Journal of Operation and Automation in Power Engineering

卷:7

S. Hajiaghasi¹  M. R. Aghamohammadi¹  Z. Rafiee¹  A. Salemnia¹ 

[1] Department of Electrical Engineering, Shahid Beheshti University, Tehran, Iran.;

关键词: Brushless DC motor;    Direct power control;    Four-switch inverter;    Sensorless;    Torque ripple;   

DOI  :  10.22098/joape.2019.4859.1374

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown