期刊
IEEE TRANSACTIONS ON FUZZY SYSTEMS
卷 18, 期 5, 页码 919-934出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TFUZZ.2010.2052259
关键词
Nonlinear systems; output feedback; piecewise Lyapunov functions; Takagi-Sugeno (T-S) fuzzy systems; unreliable communication links
资金
- Research Grants Council of the Hong Kong Special Administrative Region of China [CityU/113209]
- National Natural Science Foundation of China [61004038]
- 973 Project [2009CB320600]
- Postdoctoral Science Foundation of China [20100471059]
- Overseas Talents Foundation of the Harbin Institute of Technology
This paper investigates the problem of robust H-infinity output-feedback control for a class of nonlinear systems under unreliable communication links. The nonlinear plant is represented by a Takagi-Sugeno (T-S) uncertain fuzzy model, and the communication links between the plant and controller are assumed to be imperfect, i.e., data-packet dropouts occur intermittently, which is often the case in a network environment. Stochastic variables that satisfy the Bernoulli random-binary distribution are adopted to characterize the data-missing phenomenon, and the attention is focused on the design of a piecewise static-output-feedback (SOF) controller such that the closed-loop system is stochastically stable with a guaranteed H-infinity performance. Based on a piecewise Lyapunov function combined with some novel convexifying techniques, the solutions to the problem are formulated in the form of linear matrix inequalities (LMIs). Finally, simulation examples are also provided to illustrate the effectiveness of the proposed approaches.
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