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Sensorless Control of PMSM Based on Fuzzy Full-order Sliding Mode Observer
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Hui YU1, Shigui ZHOU1, Feihong MA1, Kecheng ZHANG2
Electric Drive | 2024, 54(7) : 3 - 10
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Electric Drive | 2024, 54(7): 3-10
Sensorless Control of PMSM Based on Fuzzy Full-order Sliding Mode Observer
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Hui YU1, Shigui ZHOU1, Feihong MA1, Kecheng ZHANG2
Affiliations
  • 1 College of Engineering，Qufu Normal University，Rizhao 276800，Shandong，China
  • 2 Rizhao Oriental Motor Limited Company，Rizhao 276800，Shandong，China
Published: 2024-07-20 doi: 10.19457/j.1001-2095.dqcd24866
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Permanent magnet synchronous machines（PMSM）has serious chattering problem when traditional sliding mode observer（SMO）is applied to low-speed operation with fixed sliding mode gain. To solve this problem，a full-order sliding mode observer（FSMO）with fuzzy adaptive adjustment of sliding mode gain was proposed，which can improve the chattering suppression performance in a wide speed range. First，a FSMO was constructed with stator current and extended back-EMF as observation objects. In addition，the fuzzy control rules were constructed by using the error and error change-rate of the actual and observed values of the stator current as the input，and the adaptive adjustment of the sliding mode gain was realized according to the different speed of the motor. Then，the soft switching continuous sliding mode control was realized by using hyperbolic tangent function instead of traditional sign function. Moreover，in order to eliminate the influence of variable speed，the normalized orthogonal phase-locked loop was used to obtain the accurate rotor position from the extended back-EMF. Finally，the PMSM drive test platform was built，and the performance of low speed and medium-high speed was tested. The experimental results show that the proposed algorithm has significant advantages in wide speed range over traditional algorithms.

permanent magnet synchronous machines（PMSM）  /  full-order sliding mode observer（FSMO）  /  fuzzy adaptive control  /  sensorless control  /  hyperbolic tangent function
Hui YU, Shigui ZHOU, Feihong MA, Kecheng ZHANG. Sensorless Control of PMSM Based on Fuzzy Full-order Sliding Mode Observer[J]. Electric Drive, 2024 , 54 (7) : 3 -10 . DOI: 10.19457/j.1001-2095.dqcd24866
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Year 2024 volume 54 Issue 7
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Article Info
doi: 10.19457/j.1001-2095.dqcd24866
  • Receive Date：2022-12-21
  • Online Date：2025-12-09
  • Published：2024-07-20
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History
  • Received：2022-12-21
  • Revised：2023-03-11
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Affiliations
    1 College of Engineering，Qufu Normal University，Rizhao 276800，Shandong，China
    2 Rizhao Oriental Motor Limited Company，Rizhao 276800，Shandong，China
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