Dynamic Event-Triggered Disturbance Rejection Control for Speed Regulation of Networked PMSM

• Published in: IEEE transactions on industrial informatics Vol. 20; no. 4; pp. 6436 - 6445
• Main Authors: Dai, Bin, Sun, Jiankun, Yang, Jun, Li, Shihua
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.04.2024; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Control methods; Digital computers; Disturbance rejection control; dynamic event-triggered control; Estimation; Feedback control; Informatics; Observers; permanent magnet synchronous motor (PMSM); Permanent magnets; predictor-based generalized proportional integral observer (GPIO); Proportional integral; Regulation; Rejection; Robust control; Synchronous motors; Torque; Vehicle dynamics
• ISSN: 1551-3203; 1941-0050
• DOI: 10.1109/TII.2023.3342898

This article investigates the robust control problem for speed regulation of networked permanent magnet synchronous motor subject to the limited communication bandwidth. To handle this, a new sampled-data disturbance rejection control method is developed via a well-designed discrete-time dynamic event-triggered mechanism (DETM). First, a predictor-based generalized proportional integral observer is introduced to estimate the lumped disturbances, when only the sampled-data output is available. Then, a composite proportional feedback controller is formed by fully utilizing disturbance estimation. The composite controller updates only when the designed discrete-time DETM is violated, resulting in remarkable communication and computation resource savings while maintaining the desirable disturbance rejection ability. The designed DETM can be applied to digital computers easily due to the discrete-time detection. Simulations and experiments are carried out to validate the feasibility and effectiveness of the proposed control scheme.