西南交通大学学报2025，Vol.60Issue(4)：803-811,9.DOI:10.3969/j.issn.0258-2724.20240499
基于模糊补偿的磁浮列车悬浮系统非奇异终端滑模控制
Fuzzy Compensation-Based Non-Singular Terminal Sliding Mode Control of Maglev Vehicle Levitation System
摘要
Abstract
To improve the degradation of high-precision dynamic levitation performance in electromagnetic suspension(EMS)maglev trains caused by time-varying system parameters,crosswind aerodynamic lift,and passenger load variations during actual operation,an adaptive fuzzy non-singular terminal sliding mode control(FNTSC)method was proposed.Firstly,a dynamics model of a single electromagnet levitation system considering system uncertainty and external disturbance was established.Secondly,a fuzzy logic system was employed to achieve online approximation and dynamic compensation for the unknown nonlinear function in the levitation system.Then,to address the singularity issue and chattering phenomenon inherent in conventional sliding mode control(SMC),a non-singular terminal sliding mode controller was designed,and the finite-time convergence of the tracking error was proved based on the Lyapunov stability theory without any linearization.Finally,the PID,SMC,and fuzzy PID control methods were simulated and compared with the FNTSC method,and further experimental comparisons of the PID and FNTSC methods were carried out to verify their effectiveness and robustness.The experimental results show that the FNTSC exhibits smaller steady-state errors and superior tracking performance under random external disturbances and irregular trajectories.Compared with the PID control method,the FNTSC reduces the root-mean-square(RMS)error of static levitation by 15.7%and constrains the tracking error for a sinusoidal irregular trajectory with a 2 mm amplitude within 0.05 mm.关键词
磁浮交通/悬浮系统/模糊控制/非奇异终端滑模控制/鲁棒性/自适应控制Key words
maglev transportation/levitation system/fuzzy control/non-singular terminal sliding mode control/robustness/adaptive control分类
机械制造引用本文复制引用
孙友刚,张丹丹,吉文,徐俊起..基于模糊补偿的磁浮列车悬浮系统非奇异终端滑模控制[J].西南交通大学学报,2025,60(4):803-811,9.基金项目
国家重点研发计划(2023YFB4302502) （2023YFB4302502）
国家自然科学基金项目(52232013,52272374)中央高校基本科研业务费专项资金(22120230311) （52232013,52272374）
高速磁浮运载技术全国重点实验室开放课题(SKLM-SFCF-2023-004)的资助. （SKLM-SFCF-2023-004）
