Observer Design and Residual Evaluation of System Actuators With Lipschitz Nonlinearity

Zhihao Zhang, Tong Yao, Yi Wang and Qinglong Lan

Complexity, 2026, vol. 2026, 1-13

Abstract: Summary: This paper studies observer design and residual evaluation of system actuators with Lipschitz nonlinearity. A fault detection observer for actuators that satisfies the Lipschitz nonlinearity condition is proposed in the finite-frequency domain to ensure its robustness to disturbances and sensitivity to faults under bounded fault amplitude conditions. On this basis, in order to improve the accuracy of fault detection, a redesign method of dynamic threshold for fault detection is proposed. The effectiveness of the proposed methods is illustrated by numerical simulations.

Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:hin:complx:1320989

DOI: 10.1155/cplx/1320989

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