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2024-01-28
Sensorless Control of Permanent Magnet-Assisted Synchronous Reluctance Motor Based on Adaptive Sliding Mode Observer
By
Aide Xu,

    Professor Aide Xu

    College of Information and Science Technology

    Dalian Maritime University

    China

    Homepage

Xinyu Li,

    Mr. Xinyu Li

    College of Marine Electrical and Engineering

    Dalian Maritime University

    China

    Homepage

Shimai Hu,

    Dr. Shimai Hu

    College of Information and Science Technology

    Dalian Maritime University

    China

    Homepage

Xin Liu

    Dr. Xin Liu

    College of Marine Electrical and Engineering

    Dalian Maritime University

    China

    Homepage

Progress In Electromagnetics Research Letters, Vol. 117, 33-40, 2024
doi:10.2528/PIERL23103001 | Google Scholar

Abstract
To solve the issue of chattering that occurs during the estimation of the rotor position in the permanent magnet-assisted synchronous reluctance motor using the conventional sliding mode observer (SMO), the saturation function is used in this paper instead of the original sign function to reduce its jittering effect; to solve the problem of phase delay caused by the low-pass filter (LPF), the adaptive law is implemented as a substitute for the LPF. This allows for a smoother back electromotive force and eliminates the need for position compensation caused by phase delay; finally, the phase-locked-loop (PLL) technique is used to extract more accurate rotor position information. A 3 kW permanent magnet-assisted synchronous reluctance motor is taken as the control object, and a simulation model of the control system is established. The results show that the improved saturation function adaptive SMO has higher level of accuracy in estimating rotor position information than the conventional SMO.
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Citation
Aide Xu, Xinyu Li, Shimai Hu, and Xin Liu, "Sensorless Control of Permanent Magnet-Assisted Synchronous Reluctance Motor Based on Adaptive Sliding Mode Observer," Progress In Electromagnetics Research Letters, Vol. 117, 33-40, 2024.
doi:10.2528/PIERL23103001
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