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Updated: May 5, 2026

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Adaptive Sliding Mode Control for PMSM Drives with High-Order Disturbance Compensation.

Bingmin Ji1, Xin Mu1, Lingbo Kong2

  • 1School of Electrical and Electronic Engineering, Changchun University of Technology, Changchun 130012, China.

Sensors (Basel, Switzerland)
|May 4, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces a novel control strategy for permanent magnet synchronous motor (PMSM) speed regulation. The new method significantly improves dynamic response and robustness against load disturbances.

Keywords:
adaptive reaching lawhigh-order disturbance observerpermanent magnet synchronous motorsliding mode control

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Area of Science:

  • Electrical Engineering
  • Control Systems
  • Robotics

Background:

  • Permanent magnet synchronous motors (PMSMs) are widely used in industrial applications.
  • Effective speed regulation of PMSMs is crucial for performance and efficiency.
  • Load disturbances can significantly degrade PMSM speed control accuracy and stability.

Purpose of the Study:

  • To enhance the dynamic response and robustness of PMSM speed regulation.
  • To address challenges posed by load disturbances in PMSM systems.
  • To develop an advanced control strategy for high-performance PMSM drives.

Main Methods:

  • A composite control strategy integrating novel sliding mode control (NSMC) with an adaptive reaching law and a high-order disturbance observer (HDOB).
  • Design of an adaptive reaching law to accelerate convergence and an adaptive saturation function (ASF) to reduce chattering.
  • Development of HDOB for real-time estimation and feed-forward compensation of lumped disturbances.

Main Results:

  • The proposed NSMC reduced settling time by 43.1% and eliminated overshoot compared to conventional sliding mode control (SMC).
  • The NSMC + HDOB strategy reduced maximum speed deviation by 38.3% (load application) and 57.2% (load removal) versus SMC + HDOB.
  • Validated through simulations and real-time experiments on a Hall-sensor-based PMSM drive platform.

Conclusions:

  • The proposed NSMC + HDOB strategy offers superior speed tracking and robustness against load disturbances.
  • This composite control method provides an effective solution for high-performance PMSM drive systems.
  • The strategy achieves faster response, reduced fluctuations, and enhanced disturbance rejection capabilities.