International Journal of Automation and Computing

, Volume 7, Issue 4, pp 509–515

Guaranteed cost active fault-tolerant control of networked control system with packet dropout and transmission delay

  • Xiao-Yuan Luo
  • Mei-Jie Shang
  • Cai-Lian Chen
  • Xin-Ping Guan
Article

DOI: 10.1007/s11633-010-0534-4

Cite this article as:
Luo, X., Shang, M., Chen, C. et al. Int. J. Autom. Comput. (2010) 7: 509. doi:10.1007/s11633-010-0534-4

Abstract

The problem of guaranteed cost active fault-tolerant controller (AFTC) design for networked control systems (NCSs) with both packet dropout and transmission delay is studied in this paper. Considering the packet dropout and transmission delay, a piecewise constant controller is adopted. With a guaranteed cost function, optimal controllers whose number is equal to the number of actuators are designed, and the design process is formulated as a convex optimal problem that can be solved by existing software. The control strategy is proposed as follows: when actuator failures appear, the fault detection and isolation unit sends out the information to the controller choosing strategy, and then the optimal stabilizing controller with the smallest guaranteed cost value is chosen. Two illustrative examples are given to demonstrate the effectiveness of the proposed approach. By comparing with the existing methods, it can be seen that our method has a better performance.

Keywords

Networked control system (NCS)packet dropouttransmission delayactive fault-tolerant control (AFTC)guaranteed cost controller

Copyright information

© Institute of Automation, Chinese Academy of Sciences and Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Xiao-Yuan Luo
    • 1
  • Mei-Jie Shang
    • 1
  • Cai-Lian Chen
    • 1
    • 2
  • Xin-Ping Guan
    • 1
    • 2
  1. 1.Institute of Electrical EngineeringYanshan UniversityQinhuangdaoPRC
  2. 2.School of Electronic, Information, and Electrical EngineeringShanghai Jiao Tong UniversityShanghaiPRC