Finite-Time Convergence ESO-Based Nonsingular Fast Terminal Sliding Mode Control for PMSM with Unknown Parameters and Time-Varying Load

In this paper, an extended state observer (ESO)-based nonsingular fast terminal sliding mode (NFTSM) control method is proposed for the speed tracking system of permanent magnet synchronous motor (PMSM) in the present of unknown parameters and time-varying load. Firstly, three finite time convergenc...

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Bibliographic Details
Published in:Mathematical problems in engineering 2022-11, Vol.2022, p.1-13
Main Authors: Gao, Chong-yi, Dai, Jun, Li, Jing, Li, Jian-xiong
Format: Article
Language:English
Subjects:
Closed loop systems
Closed loops
Control algorithms
Control methods
Control systems design
Controllers
Convergence
Design
Engineering
Feedback control
Methods
Parameters
Permanent magnets
Sliding mode control
State observers
Synchronous motors
Tracking systems
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Summary:In this paper, an extended state observer (ESO)-based nonsingular fast terminal sliding mode (NFTSM) control method is proposed for the speed tracking system of permanent magnet synchronous motor (PMSM) in the present of unknown parameters and time-varying load. Firstly, three finite time convergence ESO (FTCESO) are employed to estimate the lumped disturbances in one speed loop and two current loops, respectively, and the estimates are fed forward to controllers for compensation. Secondly, a NFTSM controller is designed, which can drive the speed of PMSM track in desired speed in finite time. The stability of resulting closed-loop system is proved by using Lyapunov theory. Finally, the simulation and experimental results are compared with the existing methods, and the results show that the proposed method has better performance in tracking different kind of desired speed curves, and also performs better in reducing the chattering phenomenon.
ISSN:1024-123X
1563-5147
DOI:10.1155/2022/9080445