Support vector machine optimal control for mobile wheeled inverted pendulums with unmodelled dynamics

Authors:
Zhijun Li;Yunong Zhang;Yipeng Yang
Affiliations:
Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China;School of Information Science and Technology, Sun Yat-Sen University, Guangzhou 510275, China;Department of Automation, Shanghai Jiao Tong University, Shanghai 200240, China
Venue:
Neurocomputing
Year:
2010

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Abstract

The dynamic balance and motion control based on LS-SVM (least squares support vector machine) are considered for mobile wheeled inverted pendulums (WIP), in the presence of parametric and functional dynamics uncertainties. Based on Lyapunov synthesis, the proposed control mechanisms use the advantage of LS-SVM combined with on-line parameters estimation strategy in order to have an efficient approximation. Under the controller designed, we can ensure that the outputs of the system track the given bounded reference signals within a small neighborhood of zero, and guarantee semi-global uniform boundedness of all the closed loop signals. Simulation results are presented to verify the effectiveness of the proposed control.