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Robust adaptive fuzzy-neural control of nonlinear dynamical systems using generalized projection update law and variable structure controller

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3 Author(s)
Wei-Yen Wang ; Dept. of Electron. Eng., Fu-Jen Catholic Univ., Taipei, Taiwan ; Tih-Guang Leu ; Chen-Chien Hsu

In this paper, a robust adaptive fuzzy-neural control scheme for nonlinear dynamical systems is proposed to attenuate the effects caused by unmodeled dynamics, disturbance, and modeling errors. A generalized projection update law, which generalizes the projection algorithm modification and the switching-σ adaptive law, is used to tune the adjustable parameters for preventing parameter drift and confining states of the system to the specified regions. Moreover, a variable structure control method is incorporated into the control law so that the derived controller is robust with respect to unmodeled dynamics, disturbances, and modeling errors. To demonstrate the effectiveness of the proposed method, several examples are illustrated in this paper

Published in:

IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics)  (Volume:31 ,  Issue: 1 )