ADAPTIVE FUZZY CONTROL OF A CLASS OF DECENTRALIZED NONLINEAR SYSTEMS AND UNKNOWN DYNAMICS

M. Benyakhlef and L. Radouane

Keywords

Decentralized control system, fuzzy controller, interconnected nonlinear system

Abstract

In this paper, a stable indirect adaptive controller is presented for a class of interconnected nonlinear systems with unknown dynamics and interconnections. The feedback and adaptive mechanisms for each subsystem depend only upon local measurements to provide asymptotic tracking of a reference trajectory. Based on the combination of H∞ optimal control and fuzzy logic control using a fuzzy identifier and fuzzy logic control, the proposed decentralized fuzzy control can easily tackle the output tracking control problem in a completely decentralized way. An example is given to illustrate the tracking performance of the proposed method.

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