光学精密工程2024，Vol.32Issue(19)：2921-2932,12.DOI:10.37188/OPE.20243219.2921
基于改进指数趋近律和自适应龙伯格观测器的PMSM速度环滑模控制
Sliding mode control strategy for PMSM speed ring based on improved exponential convergence law and adaptive Lunberger observer
摘要
Abstract
To enhance the speed control of permanent magnet synchronous motor(PMSM)drive sys-tems,this paper introduces a new sliding mode control(NSMC)strategy with an improved exponential convergence law and an adaptive Lunberger observer.Firstly,to overcome the slow convergence of tradi-tional exponential laws,a nonlinear adaptive function-based law is proposed,enabling faster convergence and reduced jitter for the NSMC strategy.This adaptive function also resolves the discontinuity issue of the convergence law's exponential term.Secondly,addressing the limitations of the traditional Lunberger observer,an adaptive version is developed to estimate and compensate system perturbations,offering quicker response without affecting steady-state performance,thus enhancing the system's disturbance resis-tance and speed tracking.Simulations and experiments demonstrate that for step speed commands at 500 r/min and 750 r/min,the system's settling times are 0.44 s and 0.71 s,respectively.When loads sudden-ly increase by 5,10,and 20,the settling times are 1.16 s,1.79 s,and 1.99 s.The proposed sliding mode control strategy significantly improves both dynamic and steady-state system performance.关键词
永磁同步电机/滑模控制/趋近律/龙伯格观测器Key words
Permanent Magnet Synchronous Motor(PMSM)/sliding mode control/approach rate/Lunberger observer分类
计算机与自动化引用本文复制引用
唐腾宇,邓永停,刘京,康寓新,徐一凡,伏佳,张智敏..基于改进指数趋近律和自适应龙伯格观测器的PMSM速度环滑模控制[J].光学精密工程,2024,32(19):2921-2932,12.基金项目
国家自然科学基金资助项目(No.12122304,No.12303083,No.12473085) （No.12122304,No.12303083,No.12473085）
中国科学院青促会优秀会员资助项目(No.Y2023060) （No.Y2023060）
吉林省重点研发计划资助项目(No.20220203036SF) （No.20220203036SF）
吉林省科技创新平台项目(No.20230505007ZP) （No.20230505007ZP）
