Stability analysis and stabilization of discrete-time switched Takagi-Sugeno fuzzy systems

摘要

We endeavor to investigate the H-infinity synthesis problem of switched fuzzy systems composed by several discrete-time subsystems. By designing a novel QTD-MD Lyapunov function, novel criteria assuring stability as well as an expected H-infinity performance are first developed. Based on these sufficient conditions, some other conditions for solving the fuzzy H-infinity controllers are derived subsequently. Furthermore, the criteria are given as LMIs, thus the implementations are easy to execute. Simulations are also provided to confirm the feasibility of the presented strategy. (C) 2020 ISA. Published by Elsevier Ltd. All rights reserved.