Volume 40, Number 2, April 2022
|Page(s)||316 - 322|
|Published online||03 June 2022|
Vector control of PMSM based on disturbance compensation and nonsingular terminal sliding mode
School of Automation, Northwestern Polytechnical University, Xi’an 710072, China
In order to enhance the global asymptotic stability of the system in sliding mode control for permanent magnet synchronous motor (PMSM), a nonsingular terminal sliding mode speed loop controller based on nonlinear sliding mode surface is designed in this paper, which ensures the finite-time convergence and improves the steady state precision of the system. Meanwhile, it avoids the singularity problem and reduces the chattering problem of the system. In order to improve the anti-interference ability and control precision of the system, a new disturbance observer is designed, which feeds the observed values back to the speed controller. Aiming at the safety and reliability of the position sensor, a sliding mode position observer is also designed which enable the real-time, fast and accurate tracking of the position signal to be realized. The simulation results show that the control strategy proposed in this paper can effectively improve the control precision and response speed of the system, and enhance the anti-interference ability of the PMSM control system.
Key words: permanent magnet synchronous motor (PMSM) / vector control / nonsingular terminal sliding mode controller / position observer
关键字 : 永磁同步电机 / 矢量控制 / 非奇异终端滑模控制器 / 位置观测器
© 2022 Journal of Northwestern Polytechnical University. All rights reserved.
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.