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Observer Based Improved Position Estimation in Field-Oriented Controlled PMSM with Misplaced Hall-Effect Sensors

Author

Listed:
  • Mengji Zhao

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Quntao An

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Changqing Chen

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Fuqiang Cao

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

  • Siwen Li

    (School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China)

Abstract

Low resolution Hall-effect sensors have been commonly applied in PMSM drives for the reason of cost and volume. Generally, rotor speed and position are estimated inaccurately due to the installation error of the sensors. The inaccurate position degrades the performance of current control and also increases torque ripples, which aggravates mechanical vibration and noise. An improved dual observer is proposed in this paper to suppress the impact of misplaced Hall-effect sensors and improve estimation accuracy. By a cascading dual Luenberger observer and combining feedback decoupling control, the low-order noises produced by the deviation of Hall signals are effectively suppressed. The effectiveness of the proposed method is verified by experimental results.

Suggested Citation

  • Mengji Zhao & Quntao An & Changqing Chen & Fuqiang Cao & Siwen Li, 2022. "Observer Based Improved Position Estimation in Field-Oriented Controlled PMSM with Misplaced Hall-Effect Sensors," Energies, MDPI, vol. 15(16), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:16:p:5985-:d:891664
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