Stability Analysis of Fuzzy Controllers Using the Modified Popov Criterion
نویسنده
چکیده
Abstract. This paper deals with the stability analysis of fuzzy logic control (FLC) systems. The output characteristic of this class of controllers is nonlinear, thus it is necessary to use stability analysis methods for nonlinear systems. Here we use the Popov criterion. The systems analysed have a FLC with two input variables and one output variable, resulting in a surface as the nonlinear output characteristic. Using algebraic and graphic manipulation of the control system state equations and of the nonlinear output characteristic of the FLC, we can apply the Popov criterion to systems with this configuration.
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تاریخ انتشار 2003