Universal fuzzy controllers for a class of nonlinear systems (Q5947547)

The authors address the problem of universal fuzzy controllers. The basic idea of the methods is to design a feedback controller for each local model and to construct a global controller from the local controllers in such a way that global stability of the closed-loop fuzzy control system is guaranteed. However, there is still an important question to be answered, that is, whether there is a fuzzy control law which can stabilize a given complex nonlinear system if the system can be stabilized. This is the universal fuzzy controller problem. After presenting dynamic fuzzy models and a universal fuzzy approximator, the authors give a new proof of the universal fuzzy controller and a constructive procedure to obtain the universal fuzzy controller, which is followed by some concluding remarks.