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| Hauptverfasser: | , , , |
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| Format: | Artículo Open Access |
| Veröffentlicht: |
Wiley
2025
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| Schlagworte: | |
| Online-Zugang: | https://onlinelibrary.wiley.com/doi/10.1002/cta.4591 |
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Inhaltsangabe:
- A Second‐Order Nonlinear Disturbance Observer–Based Nonsingular Terminal Sliding Mode Control for PMSLM System Yuyi Pang Haitao Yu Yao Wang Jiahui Zhang International Journal of Circuit Theory and Applications ABSTRACT In this paper, a speed–current single‐loop control strategy for permanent magnet synchronous linear motors (PMSLMs) with load variations is investigated. First, a second‐order model of the PMSLM is developed by combining the speed and q ‐axis current. Then, a speed regulation strategy consisting of a nonsingular terminal sliding mode control and second‐order nonlinear disturbance observers is designed for the developed second‐order model to improve the response and disturbance rejection performance of the PMSLM. The matched and mismatched disturbances of the second‐order model are estimated by second‐order nonlinear disturbance observers. The convergence of the studied control strategies is analyzed by the Lyapunov theory. Finally, the simulation and experimental results show the advantages of the studied control strategy in terms of response and robustness compared with the PID and SMC based on cascade structure. 10.1002/cta.4591 http://onlinelibrary.wiley.com/termsAndConditions#vor