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Observer Design and Residual Evaluation of System Actuators With Lipschitz Nonlinearity

Author

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  • Zhihao Zhang
  • Tong Yao
  • Yi Wang
  • Qinglong Lan

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.

Suggested Citation

  • Zhihao Zhang & Tong Yao & Yi Wang & Qinglong Lan, 2026. "Observer Design and Residual Evaluation of System Actuators With Lipschitz Nonlinearity," Complexity, Hindawi, vol. 2026, pages 1-13, March.
    • Handle: RePEc:hin:complx:1320989
    DOI: 10.1155/cplx/1320989
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