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June 13, 2026SensorsOpen Access

Sensorless Speed Control of PMSMs Based on an Improved Fast Power Reaching Law

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Authors

WLWei LiJinan UniversityYLYufei LiuUniversity of AlbertaMZMinghui ZhangWeichai Power (China)

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Overview

Randomized trial demonstrates improved speed control in PMSMs, indicating enhanced performance and reliability.

Key Points

  • The aim is to develop a sensorless speed control strategy for PMSMs that enhances reliability and reduces system complexity.
  • Proposed a novel sensorless speed control strategy using an improved fast power reaching law (IFPRL).
  • Developed a non-singular terminal sliding mode observer (NTSMO) and non-singular terminal sliding mode controller (NTSMC).
  • Validated the proposed method through numerical simulations and experimental tests.
  • Achieved a 2.7% reduction in root mean square error (RMSE) of speed control compared to traditional methods.
  • Demonstrated superior dynamic response and higher control accuracy with the proposed method.
  • Exhibited stronger robustness against disturbances in sensorless speed control.

Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/6a2cf62dfaef96ed7f058074https://doi.org/10.3390/s26123737
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Also Consider

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  1. 1Research on a Sensorless Control Strategy for Permanent Magnet Synchronous Motors Based on Non-Singular Fast Terminal Sliding Mode Theory2026
  2. 2The sliding-mode observer for PMSM field-oriented sensorless control with adaptive filter and PLL2024
  3. 3Research on Speed Control of Permanent Magnet Synchronous Motor Based on Improved Fast Terminal Sliding Mode with Adaptive Control Law2025 · 3 citations
  4. 4Sensorless Control for a Permanent Magnet Synchronous Motor Based on a Sliding Mode Observer2024 · 11 citations
  5. 5Sensorless control of PMSM based on IF start and sliding mode observer2025