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Simultaneous Estimation of Current and Speed of Permanent Magnet Synchronous Motor Based on an Improved Dual Second-Order Observer

Author

Listed:
  • Guorong Zhu

    (School of Automation, Wuhan University of Technology, Wuhan 430070, China)

  • Yihong Zheng

    (School of Automation, Wuhan University of Technology, Wuhan 430070, China)

  • Xiangtian Deng

    (School of Automation, Wuhan University of Technology, Wuhan 430070, China)

  • Jianghua Lu

    (School of Information Science and Engineering, Wuhan University of Science and Technology, Wuhan 430081, China)

Abstract

The third-order state observer implements the decoupled control and the accurate estimation of the d-axis current, q-axis current, and rotor speed of the permanent magnet synchronous motor (PMSM). Its complex calculation, however, is a challenge for most digital controllers in practical applications. The authors proposed an improved dual second-order observer based on the Kalman filter. A 0.88 Nm, 1500 rpm prototype was built. The simulation and experimental results prove the effectiveness and practicability of the proposed method.

Suggested Citation

  • Guorong Zhu & Yihong Zheng & Xiangtian Deng & Jianghua Lu, 2023. "Simultaneous Estimation of Current and Speed of Permanent Magnet Synchronous Motor Based on an Improved Dual Second-Order Observer," Energies, MDPI, vol. 16(20), pages 1-23, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:20:p:7096-:d:1259889
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