Stable adaptive control of fuzzy dynamic systems

This paper discusses fuzzy model reference adaptive control for a class of nonlinear systems. The system concerned is represented by a family of local transfer function models smoothly connected together by fuzzy membership functions. The model reference adaptive control law is first designed in each local region and then constructed in global domain. It is shown that the resulting fuzzy adaptive control system is globally stable based on a suitable piecewise differentiable Lyapunov function. A simulation example is given for demonstration of the application of the method. © 2002 Elsevier Science B.V. All rights reserved.