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

Mengji Zhao, Quntao An (), Changqing Chen, Fuqiang Cao and Siwen Li
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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

Energies, 2022, vol. 15, issue 16, 1-14

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.

Keywords: permanent magnet synchronous motor; Hall-effect sensors; speed and position estimation; dual observer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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