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NUIO/LMI based robust fault diagnosis for satellite attitude control system

Research output: Contribution to journalArticlepeer-review

Abstract

To solve the problem of robust fault diagnosis in satellite attitude control system, based on UIO, a nonlinear UIO(NUIO) is proposed to dealt with actuator and sensor faults. Considering the external disturbance and uncertainty of the nonlinear attitude control system, a new model for the system is established. By using H-infinity control and linear matrix inequality(LMI) approach, the NUIO matrix is obtained. At last, the diagnosis simulation of satellite attitude control system with actuator and sensor faults validates the feasibility of the proposed method.

Original languageEnglish
Pages (from-to)19-22
Number of pages4
JournalHarbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Volume43
Issue number3
StatePublished - Mar 2011

Keywords

  • Attitude control system(ACS)
  • H-infinity control
  • LMI
  • NUIO
  • Robust fault diagnosis

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