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The preview control of a class of linear systems and its application in the fault-tolerant control theory

Author

Listed:
  • Fucheng Liao
  • Chen Jia
  • Usman Malik
  • Xiao Yu
  • Jiamei Deng

Abstract

In the fault-tolerant control theory based on model following control, the desired signal of the control system is the output of a reference system. This paper is concerned with the design of the preview controller for a class of fault systems. A composite vector is introduced by including error vector, fault system state vector and reference system state vector. Then, we derived an augmented system from the known system equation, in which the reference input has equal status with the desired signal in the traditional preview control theory. Therefore, we can use the known theory to design the preview controller for the augmented system, then the preview controller of the original fault system can be obtained by the integration method. This paper strictly discusses the connection between stabilisation and detectability of the augmented system and the corresponding characteristics of the original system. Finally, by applying this theory to a real steam generator water level control system, it is found that the actions of the reference input preview and the fault signal preview can effectively eliminate the effect of the fault signal on the water level of the steam generator. The simulation shows the effectiveness of the controller designed.

Suggested Citation

  • Fucheng Liao & Chen Jia & Usman Malik & Xiao Yu & Jiamei Deng, 2019. "The preview control of a class of linear systems and its application in the fault-tolerant control theory," International Journal of Systems Science, Taylor & Francis Journals, vol. 50(5), pages 1017-1027, April.
    • Handle: RePEc:taf:tsysxx:v:50:y:2019:i:5:p:1017-1027
    DOI: 10.1080/00207721.2019.1587028
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