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Electrical Engineering

Speed sensorless control at low speed for bearingless synchronous reluctance motor based on improved Luenberger observer

  • 17-12-2024
  • Original Paper
Published in:
Authors
Enxiang Xu
Jiaxing Lu
Ruijie Zhao
Published in
Electrical Engineering | Issue 6/2025

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Abstract

The article presents a novel approach for sensorless control of bearingless synchronous reluctance motors at low speeds using an improved Luenberger observer method. Traditional control strategies rely on mechanical sensors, which are costly and have high environmental requirements. The proposed method uses current derivatives to estimate rotor angle and speed, avoiding the need for high-frequency signal injection or accurate motor models. Simulation and experimental results demonstrate the method's accuracy and reliability across various speed ranges and load conditions. This approach holds significant potential for improving the performance and applicability of bearingless motors in industries requiring precise control and high efficiency.
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Title
Speed sensorless control at low speed for bearingless synchronous reluctance motor based on improved Luenberger observer
Authors
Enxiang Xu
Jiaxing Lu
Ruijie Zhao
Publication date
17-12-2024
Publisher
Springer Berlin Heidelberg
Published in
Electrical Engineering / Issue 6/2025
Print ISSN: 0948-7921
Electronic ISSN: 1432-0487
DOI
https://doi.org/10.1007/s00202-024-02907-6
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