Robust fault detection observer design under fault sensitivity constraints

Lee, Kee-Sang; Park, Tae-Geon

doi:10.1016/j.jfranklin.2014.10.002

Cited by 15 publications

(4 citation statements)

References 17 publications

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“…One category relies on the use of robust control techniques, for instance using H ∞ and H − norms (see e.g. [21,30,51,66]).…”

Section: Fault Diagnosismentioning

confidence: 99%

Advances in State Estimation, Diagnosis and Control of Complex Systems

Wang¹

2021

Springer Theses

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pressurizing me to carefully prepare any publication at a top level and sufficiently produce high-quality results. Fourth, I want to thank Prof. Florin Stoican from University Politehnica of Bucharest, in Romania and Prof. Cristina Nicoleta Maniu from CentraleSupélec, Université Paris Saclay, in France for having reviewed this thesis with providing valuable comments. Especially, Prof. Stoican did a fantastic review with very detailed comments for each chapter of this thesis. Besides, I would like to thank Prof. Ramon Costa-Castelló from Universitat Politècnica de Catalunya, in Spain for joining my Ph.D. thesis committee.

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“…One category relies on the use of robust control techniques, for instance using H ∞ and H − norms (see e.g. [21,30,51,66]).…”

Section: Fault Diagnosismentioning

confidence: 99%

Advances in State Estimation, Diagnosis and Control of Complex Systems

Wang¹

2021

Springer Theses

View full text Add to dashboard Cite

show abstract

“…One category relies on the use of robust control theory tools, for instance using H ∞ and H − norms (see e.g. [2,[7][8][9][10] ). Among robust approaches, a standard method is based on an adaptive threshold for the decision making of the FDI alarm.…”

Section: Introductionmentioning

confidence: 99%

Robust fault detection and isolation based on zonotopic unknown input observers for discrete-time descriptor systems

Wang

Puig

et al. 2019

Journal of the Franklin Institute

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In this paper, we propose a robust fault detection and isolation (FDI) strategy based on zonotopic unknown input observers (UIOs) for discrete-time descriptor linear time-varying (LTV) systems subject to uncertainties and additive actuator faults. System uncertainties including state disturbances and measurement noise are unknown but bounded by predefined zonotopes. The uncertain state estimations and constructed residuals for robust FDI are propagated in a sequence of zonotopes. Based on a defined performance criterion, the fault detection (FD) observer gain is designed to be robust against uncertainties and meanwhile sensitive to faults. The explicit computational method for the FD observer gain is derived. In addition to include fault isolation, a bank of zonotopic UIOs are employed. Finally, we apply the proposed method into two case studies to show its effectiveness.

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“…The concept of

H_{-}

index proposed in [12] is further improved in [14], where

H_{-}

index is defined as the minimum singular value of a transfer function matrix over a finite‐frequency domain. After the pioneering works in [12–14], many fault detection methods based on

H_{-} / H_{\infty}

fault detection observer have been proposed in the literature [15–19].…”

Section: Introductionmentioning

confidence: 99%

fault detection observer design in finite‐frequency domain for Lipschitz non‐linear systems

Zhou

Wang

Shen

et al. 2017

IET Control Theory & Applications

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This study is about H − /H ∞ fault detection observer design in finite-frequency domain for Lipschitz non-linear systems with actuator fault. To make the generated residual sensitive to fault while robust against disturbance, the authors derive design conditions for the fault detection observer to achieve H − fault sensitivity performance in finite-frequency domain and H ∞ disturbance attenuation performance. The authors further transform the design conditions as a set of linear matrix inequalities to facilitate the observer design. Besides, some extra design degrees of freedom parameters are provided in the proposed method to further reduce some conservatism. Numerical simulations of a single-link flexible joint robot are conducted to verify the effectiveness of the proposed approach.

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Robust fault detection observer design under fault sensitivity constraints

Cited by 15 publications

References 17 publications

Advances in State Estimation, Diagnosis and Control of Complex Systems

Advances in State Estimation, Diagnosis and Control of Complex Systems

Robust fault detection and isolation based on zonotopic unknown input observers for discrete-time descriptor systems

fault detection observer design in finite‐frequency domain for Lipschitz non‐linear systems

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