Abstract:Adaptive incremental sliding mode control(AISMC)method was proposed for permanent magnet linear synchronous motor(PMLSM)direct-drive servo system which is vulnerable to influence of the uncertainties,such as parameter variations,external disturbances,end effect and so on.Incremental sliding mode controller was designed by utilizing previous state information and control action,and adopting the saturated function to replace the switching function.The proposed controller can reduce chattering and improve tracking performance of the system.Then,adaptive control was used to observe and compensate influence of the uncertainties,such as parameter variations,external disturbances and so on,while estimating the bound of uncertain parameters instantly.Adaptive incremental sliding mode controller was investigated.From the theoretical analysis,the proposed controller was proved to guarantee the convergence of the system and have high convergence speed,which can improve the tracking performance of the linear servo system.The system experimental results confirmed effectiveness and feasibility of the proposed AISMC scheme.Compared with sliding mode control(SMC),the system based on AISMC has stronger robustness and more accurate tracking performance,meanwhile,chattering phenomenon is obviously reduced.
赵希梅, 王晨光. 永磁直线同步电机的自适应增量滑模控制[J]. 电工技术学报, 2017, 32(11): 111-117.
Zhao Ximei, Wang Chenguang. Adaptive Incremental Sliding Mode Control for Permanent Magnet Linear Synchronous Motor. Transactions of China Electrotechnical Society, 2017, 32(11): 111-117.
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