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Zbl 1141.93346
Wang, Zhanshan; Zhang, Huaguang
Design of a bilinear fault detection observer for singular bilinear systems. (English)
[J] J. Control Theory Appl. 5, No. 1, 28-36 (2007). ISSN 1672-6340

Summary: A bilinear fault detection observer is proposed for a class of continuous time singular bilinear systems subject to unknown input disturbance and fault. By singular value decomposition on the original system, a bilinear fault detection observer is proposed for the decomposed system via an algebraic Riccati equation, and the domain of attraction of the state estimation error is estimated. A design procedure is presented to determine the fault detection threshold. A model of flexible joint robot is used to demonstrate the effectiveness of the proposed method.

MSC 2000:: *93C05 Linear control systems

Keywords: singular bilinear systems; bilinear observer; fault detection; state estimation

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