Sliding Mode Variable Structure Control Based
 on Multimodel Online Identification

Abstract

Abstract: In order to improve the control effect of traditional sliding mode variable structure control system for nonlinear uncertain systems, a new control scheme was proposed, which combines the multimodel online identification with sliding mode variable structure. Firstly, based on the inputoutput data, multiple local models was constructed by online clustering, and the local models are updated. Then, the model of the nonlinear system is given by the combination of all weighted local models. Finally, a sliding mode controller based on reaching law is designed according to the online indentificated system model. The simulation results show the robustness of the proposed scheme to the uncertainty of system model.

Key words: variable structure control, online identification, multimodel, nonlinear system

CLC Number:

TP 273

DUAN Chao-Yang, ZHANG Yan, SHAO Lei, LEI Hu-Min, CHEN Zong-Ji. Sliding Mode Variable Structure Control Based
on Multimodel Online Identification[J]. Journal of Shanghai Jiaotong University, 2011, 45(03): 403-407.

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