Circuits, Systems, and Signal Processing

, Volume 31, Issue 1, pp 203–222 | Cite as

Sliding Mode Observer-Based Fault Detection of Distributed Networked Control Systems with Time Delay

  • Qun Zong
  • Fanlin Zeng
  • Wenjing Liu
  • Yuehui Ji
  • Yang Tao
Article
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Abstract

This paper considers the fault detection problem of distributed networked control systems (DNCS) with time delay. A sliding mode observer-based fault detection method for a two-level DNCS is presented and two different situations are considered. When all the states of the system are available for measurement, we convert the fault detection problem to a sliding motion stable and reachable problem. When some states of system are not available for measurement, we design a transformation matrix to separate the measurable states and the unknown states, and then different sliding mode observers for those unknown states are developed to achieve fault detection. Finally, a numerical example is provided to illustrate the effectiveness of the proposed method with simulation results.

Keywords

Fault detection Distributed networked control systems Sliding mode observer Residual evaluation 
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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Qun Zong
    • 1
  • Fanlin Zeng
    • 1
  • Wenjing Liu
    • 1
  • Yuehui Ji
    • 1
  • Yang Tao
    • 1
  1. 1.Department of Electrical Engineering and AutomationTianjin UniversityTianjinP.R. China

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