Optimal Sensorless Four Switch Direct Power Control of BLDC Motor

Document Type : Research paper

Authors

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.

Keywords

Main Subjects

References

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Journal of Operation and Automation in Power Engineering
Volume 7, Issue 1
May 2019
Pages 78-89

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History

  • Receive Date: 04 June 2018
  • Revise Date: 27 October 2018
  • Accept Date: 09 December 2018

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