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Speed Control of Segmented PMLSM Based on Improved SMC and Speed Compensation Model

Author

Listed:
  • Tong Wen

    (Research Institute for Frontier Science, Beihang University, Beijing 100191, China
    Ningbo Institute of Technology, Beihang University, Ningbo 31500, China)

  • Biao Xiang

    (Department of Mechanical Engineering, Hong Kong Polytechnic University, Kowloon 999077, Hong Kong, China)

  • Zhongyi Wang

    (Research Institute for Frontier Science, Beihang University, Beijing 100191, China)

  • Silei Zhang

    (Research Institute for Frontier Science, Beihang University, Beijing 100191, China)

Abstract

A segmented control model including an improved sliding model control (SMC) and a speed compensation model is applied into the speed control of a segmented permanent magnet linear synchronous motor (PMLSM) to improve the speed precision during the drive process and reduce the speed loss during the switch process. During the drive process of segmented PMLSM, an improved SMC with a disturbance observer (DOB) is used to suppress the speed fluctuation, and a DOB is added to suppress the oscillation caused by the switch part of SMC. During the switch process of a segmented PMLSM, a speed compensation model based on the position feedback of permanent magnet (PM) actuator is designed to reduce the speed loss of a segmented PMLSM, so the speed of PM actuator could be kept at the reference speed when the PM actuator absolutely quits the stator windings. Finally, the simulation and experiment are conducted to verify the control performances of proposed control model, the results indicate that the speed fluctuation of PM actuator and the speed loss during the switch process are mitigated. Therefore, this proposed control model could satisfy requirements of high-stability and celerity of segmented PMLSM in a long-distance automatic transportation system.

Suggested Citation

  • Tong Wen & Biao Xiang & Zhongyi Wang & Silei Zhang, 2020. "Speed Control of Segmented PMLSM Based on Improved SMC and Speed Compensation Model," Energies, MDPI, vol. 13(4), pages 1-16, February.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:4:p:981-:d:323830
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    Cited by:

    1. Meizhu Luo & Jian Duan & Zhaoxi Yi, 2022. "Analysis and Comparison of Two Permanent-Magnet Width-Modulation Arrays for Permanent Magnet Linear Synchronous Motor," Energies, MDPI, vol. 15(16), pages 1-14, August.

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