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The aim is to enhance the response speed and robustness of permanent magnet synchronous motors (PMSMs) through improved control strategies.

Enhanced sliding mode speed control for PMSM integrating novel composite reaching law and sliding mode disturbance observer

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Randomized trial demonstrates improved robustness and response speed in PMSMs, indicating better control strategies.

The aim is to enhance the response speed and robustness of permanent magnet synchronous motors (PMSMs) through improved control strategies.
Proposed a novel composite sliding mode reaching law (NCSMRL) using an arcsine function for adaptive control gain.
Decomposed traditional single switching term into two independently regulated components for better state response.
Integrated a sliding mode disturbance observer (SMDO) for real-time load disturbance estimation and feedforward compensation.
Fast convergence of the system was achieved without risking instability due to excessive gain.
Chattering suppression was effectively balanced against dynamic response speed.
Simulation and experimental results confirmed the proposed method's effectiveness.

Liu et al. (2026) studied this question.

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