Model Based Flux Weakening Control Strategy of Permanent Magnet Synchronous Motor with Voltage Feedback Compensation

Flux weakening (FW) control is applied to offer the optimal torque/current trajectory once the rotation speed of the permanent magnet synchronous motor (PMSM) exceeds its rated speed. The voltage feedback method is one of the most commonly used FW control strategy because it is independent of the mo...

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Bibliographic Details
Published in2024 IEEE 10th International Power Electronics and Motion Control Conference (IPEMC2024-ECCE Asia) pp. 933 - 939
Main Authors Zhang, Hengbin, Li, Hui, Wu, Yingzhe, Wang, Lisheng, Xue, Yuxiang
Format Conference Proceeding
LanguageEnglish
Published IEEE 17.05.2024
Subjects
Bandwidth
Flux weakening control
model-based method
Noise
Permanent magnet motors
permanent magnet syn-chronous motor (PMSM)
Power electronics
Robustness
Surface mount technology
Target tracking
voltage feedback compensation
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Summary:Flux weakening (FW) control is applied to offer the optimal torque/current trajectory once the rotation speed of the permanent magnet synchronous motor (PMSM) exceeds its rated speed. The voltage feedback method is one of the most commonly used FW control strategy because it is independent of the motor parameters and exhibits strong robustness. It is noted that the voltage feedback method requires sufficient bandwidth to track the target current. However, the increased bandwidth causes enhanced noise. To achieve a balance between bandwidth and noise, a novel FW control strategy combining model-based method and voltage feedback compensation has been proposed in this paper, which can guarantee both dynamic and static performance of the motor operating in FW region with sufficient robustness. Finally, the experimental verification has confirmed the validity of the proposed FW control strategy.
DOI:10.1109/IPEMC-ECCEAsia60879.2024.10567249