Static output-feedback control for interval type-2 discrete-time fuzzy systems

摘要

This article investigates the problem of reliable mixed H2/H control for discrete-time interval type-2 (IT2) fuzzy model-based systems via static output-feedback (SOF) control method. The number of fuzzy rules and the membership functions for the SOF controller are different from those for the plant. A sufficient criterion of reliable stability with mixed H2/H performance is derived for the closed-loop system with sensor failure. The SOF controller is designed for two different cases (known sensor failure case and unknown sensor failure case) to guarantee the reliable stability with mixed H2/H performance. Moreover, novel criteria are presented to obtain the optical H2 performance for the closed-loop system. Finally, an example is used to verify the effectiveness of the proposed design scheme. (c) 2014 Wiley Periodicals, Inc.