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This paper deals with the disturbance of nonlinear Takagi-Sugeno (T-S) fuzzy system. Based on piecewise fuzzy Lyapunov function and LMI method, the systematic design procedures were given and the sufficient conditions for closed-loop system stability were derived and the parameters design method of gamma-superior Hinfin controller for closed-loop system was provided. Simulation results show the effectiveness...
Based on Takagi-Sugeno fuzzy model, this paper adopts the piecewise fuzzy Lyapunov function into the analysis of nonlinear discrete systems with parametric uncertainties. Firstly, a new sufficient condition to check the stability of closed-loop discrete T-S fuzzy systems is proposed after the definition of a discrete piecewise fuzzy Lyapunov function. This condition only needs to satisfy the condition...
Considering the nonlinearity characteristic of buck-boost converter and combining with the fine part-linear characteristic of T-S fuzzy model, a novel T-S fuzzy model of buck-boost converter is proposed in this paper. Based on the constructed model, a parametrical design method of the buck-boost converter fuzzy controller is put forward via QLF method. And the parameters of controller can be obtained...
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