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This study aims to improve speed control in permanent magnet synchronous motors (PMSMs) using a sensorless sliding-mode strategy.

June 17, 2026ElectronicsOpen Access

Super-Twisting Algorithm-Based Sensorless Sliding-Mode Control for PMSM

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Randomized trial finds improved speed regulation in PMSMs, suggesting enhanced control strategies.

This study aims to improve speed control in permanent magnet synchronous motors (PMSMs) using a sensorless sliding-mode strategy.
Designed an advanced sliding-mode speed controller with the super-twisting algorithm (STA)
Developed a load torque observer to reduce sliding-mode chattering
Conducted variable-speed and variable-load tests on an experimental platform
Dynamic response improved by 58.33%
Disturbance immunity enhanced by 71.75%
Steady-state fluctuations reduced by 33.33%

Zuo et al. (2026) studied this question.

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