Abstract:

The problem of reliable control of discretetime nonlinear systems with actuators faults was studied via developing a reliable controller based on the Takagi-Sugeno fuzzy model. As those existing reliable controllers are based on the parallel distributed compensation, the one given in this paper is with special control structures named as nonparallel distributed compensation. Therefore, more control gain matrices are introduced and the conservatis
m of existing results is reduced. Moreover, a method for introducing free matrix variables was also proposed in the proof of our main result, and hence the conservatism of the obtained results could be further reduced. Finally, the effectiveness of the proposed method is illustrated by means of a numerical experiment.

Key words: automatic control technology, actuators faults, reliable controller, nonlinear system, fuzzy model