Robust Fuzzy Output Sliding Control without the Requirement of State Measurement |
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Authors: | Y. J. Huang S. H. Chang T. C. Kuo |
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Affiliation: | (1) Department of Electrical Engineering, Yuan Ze University, 135 Far-East Road, Chungli, Taiwan;(2) Department of Electrical Engineering, Ching Yun University, 229 Chien-Hsin Road, Chungli, Taiwan |
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Abstract: | A robust fuzzy output sliding control for nonlinear robotic arms is proposed in this paper. The proposed method not only retains the advantages of the conventional sliding mode control such as robustness against parameter variations and external disturbances, but also uses measurable output signals to define the sliding surface function. A fuzzy controller is developed to modify the control law to avoid state measurement. Control system stability is proved by using the Lyapunov stability theorem. The system robustness is guaranteed. Simulations results demonstrate the validity and effectiveness of the proposed method for uncertain nonlinear robotic arms. |
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Keywords: | Sliding mode control Fuzzy control Manipulators Robustness |
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