Finite-time control for permanent magnet synchronous motor with prescribed performance

被引:0
|
作者
Chen Z.-Y. [1 ]
Lin Z. [1 ]
Jia H.-M. [2 ]
Wang P. [3 ]
机构
[1] Beijing Institute of Space Mechanics and Electricity, China Academy of Space Technology, Beijing
[2] College of Information Engineering, Sanming University, Sanming
[3] School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing
关键词
Command filtered backstepping; Disturbance observer; Finite-time control; Finite-time prescribed performance; Permanent magnet synchronous motor (PMSM);
D O I
10.7641/CTA.2020.00218
中图分类号
学科分类号
摘要
To achieve high transient and steady-state tracking performance for angular servo control of permanent magnet synchronous motor (PMSM) under disturbance, this paper proposes a finite-time control method with prescribed performance. Firstly, the disturbance observer is introduced to estimate and compensate the load torque. Secondly, a finitetime prescribed performance function is designed to guarantee the dynamical performance for angular tracking error, by utilizing an invertible transformation, the angular tracking error that subjects to inequality constraint can be transformed into an equivalent unconstrained one. Thirdly, the finite-time command filtered backstepping is applied for the controller design which not only can avoid the "differential explosion" phenomenon, but also can ensure the tracking errors converge in finite-time. Finally, the simulation results are presented to verify the effectiveness of the proposed method and the robustness against the disturbance. © 2021, Editorial Department of Control Theory & Applications South China University of Technology. All right reserved.
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页码:479 / 488
页数:9
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