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A novel H∞ UIO design for actuator FDI in finite frequency domain

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Abstract

This paper proposes several design procedures for a class of novel unknown input observers (UIOs) to detect and isolate the actuator faults in finite frequency domain. Our approach dramatically reduces the number of UIOs required for multiple faults. Meanwhile, knowledge on the disturbance/ noise is embedded to enhance the performance. All the design conditions are formulated in terms of LMI/BMI problems, which enable to consider other design specifications in addition to the robustness and sensitivity requirements.

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Authors and Affiliations

  1. Temasek Laboratories, National University of Singapore, 5 Engineering Drive 1, Singapore, 117411, Singapore

    Kai Yew Lum & Jun Xu

  2. School of EEE, Nanyang Technological University, Block S1, Nanyang Avenue, Singapore, 639798, Singapore

    Lihua Xie

  3. Department of ECE, National University of Singapore, 4 Engineering Drive 3, Singapore, 117508, Singapore

    Ai Poh Loh

Authors
  1. Kai Yew Lum
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  2. Jun Xu
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  3. Lihua Xie
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  4. Ai Poh Loh
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Corresponding author

Correspondence to Jun Xu.

Additional information

Recommended by Editorial Board member Myotaeg Lim under the direction of Editor Young Il Lee.

Kai Yew Lum received his Diplôme d’Ingénieur from the Ecole Nationale Supérieure d’Ingénieurs Electriciens de Grenoble, France in 1988, and his M.Sc. and Ph.D. from the University of Michigan, in 1995 and 1997, respectively. His research interests include nonlinear dynamics and control, estimation and optimization, reduced-order modeling and control in aerodynamics.

Jun Xu received his B.S. degree in Applied Mathematics from Southeast University, China in 2001 and his Ph.D. degree in Electrical and Electric Engineering from Nanyang Technological University, Singapore in 2007. His research interests include fault detection and isolation, switched systems and multiple-agent systems.

Lihua Xie received his Ph.D. degree in Electrical Engineering from the University of Newcastle, Australia, in 1992, and his B.E. and M.E. degrees in Control Engineering from Nanjing University of Science and Technology in 1983 and 1986, respectively. His research interests include robust control, networked control, sensor networks, estimation theory and signal processing and delay systems.

Ai Poh Loh received her B.E. degree from the University of Malaya at Kuala Lumpur in 1983, and her Ph.D. in Control from Oxford University, in 1986. Her research interests include relay feedback systems, nonlinear control, auto-tuning and fault detection.

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Lum, K.Y., Xu, J., Xie, L. et al. A novel H∞ UIO design for actuator FDI in finite frequency domain. Int. J. Control Autom. Syst. 9, 601–605 (2011). https://doi.org/10.1007/s12555-011-0322-0

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  • DOI: https://doi.org/10.1007/s12555-011-0322-0

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