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1 Applied Mathematics and Computer Science

1 1998

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A robust tracking control scheme for a class of nonlinear systems with fuzzy nominal model

Mei F., Zhihong M., Yu X., Nguyen T.

Applied Mathematics and Computer Science

1998

Vol. 8, no 1

145-158

A novel robust tracking control scheme is proposed for a class of nonlinear systems. It is shown that a nonlinear system is first approximated by a fuzzy nominal model by aggregating a set of linearized local subsystems and then a conventional linear feedback controller is designed to stabilise the nominal system. In order to obtain good tracking performance for the controlled nonlinear system, a variable structure compensator is introduced to eliminate the effects or the approximation error and uncertainties between the fuzzy nominal model and the nonlinear system. A simulation example using a one-link rigid robotic manipulator is given in support of the proposed control scheme.