西南交通大学学报2025，Vol.60Issue(4)：976-985,10.DOI:10.3969/j.issn.0258-2724.20240090
主动磁悬浮轴承非奇异快速终端滑模转子位置控制
Non-Singular Fast Terminal Sliding Mode Rotor Position Control of Active Magnetic Bearings
摘要
Abstract
In order to solve problems of slow system response speed and poor anti-interference ability in the position control of the rotor of active magnetic bearings(AMB),a position control method combining the non-singular fast terminal sliding function with the improved super-twisting reaching law was proposed to obtain fast and accurate control effects of dynamic responses.In addition,due to internal and external interference in the system,constant switching gain was added to the sliding mode reaching law,so as to ensure the robustness of the system,but it could exacerbate the system chattering.Therefore,the interference was observed and compensated by a nonlinear extended state observer,which alleviated the contradiction between chattering and anti-interference.Then,the stability of the proposed method was proven Lyapunov stability theory,and the proposed control method was verified by simulation and experiment.The results show that compared with the traditional sliding mode controller,the designed controller has faster response speed and stronger chattering suppression ability,and the time for the rotor to reach the target position is shortened by 56.4%.The dynamic performance of the system is improved,and the average control current is reduced by 68.5%.The chattering suppression ability of the system is enhanced,indicating that the proposed algorithm has strong robustness.关键词
主动磁悬浮轴承/非奇异快速终端/位置控制/扩张状态观测器Key words
active magnetic bearing/non-singular fast terminal/position control/extended state observer分类
机械制造引用本文复制引用
巩磊,何派,石勇,祝长生..主动磁悬浮轴承非奇异快速终端滑模转子位置控制[J].西南交通大学学报,2025,60(4):976-985,10.基金项目
国家自然科学基金项目(52407059) （52407059）
陕西省自然科学基础研究计划(2023-JC-QN-0441)陕西省教育厅一般专项(青年)(23JK0339)资助、海洋工程全国重点实验室(上海交通大学)专项经费号(GKZD010089). （2023-JC-QN-0441）
