Abstract

The purpose of this paper is to design an adaptive reliable H ∞ controller for multirate sampled-data systems. Sampled-data systems are widely adopted in the industrial process and multirate sampling is abundant in such systems. Sensor failure is one of the faults exist in the control systems, which can result in the instability. A reliable controller is proposed in this article to guarantee the stability and H ∞ performance of the multirate sampled-data systems when sensor failures happen. The lifting technique is used to convert a multirate system to an equivalent discrete system and the idea of the substitution is utilized to address the controller design problem based on adaptive mechanism. With the use of the mathematical model of the practical F-404 engine, an example is illustrated to prove the applicability of the proposed method.

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