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Fault diagnosis using cascade H∞ observers with application to spacecraft attitude control

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper proposes a gyro and star sensor fault diagnosis architecture that designs two groups of cascade H∞ optimal fault observers using LMI for spacecraft attitude control systems and schemes a Compensation PD controller to achieve fault tolerant control. The basic idea of the approach is to identify the gyro fault to good effect first and then makes a further diagnosis for the star sensor based on the former. The H∞ optimal fault observers in design have the robustness with respect to model uncertainties, disturbance and diagnosis uncertainties. The Compensation PD controller ensures the attitude error maintains to a small set around the equilibrium point even though the gyro and star sensor faults occur simultaneously. Simulation results demonstrate the effectiveness and feasibility of the proposed control algorithm.

Original languageEnglish
Title of host publicationProceedings of the 2010 5th IEEE Conference on Industrial Electronics and Applications, ICIEA 2010
Pages1976-1981
Number of pages6
DOIs
StatePublished - 2010
Event5th IEEE Conference on Industrial Electronics and Applications, ICIEA 2010 - Taichung, Taiwan, Province of China
Duration: 15 Jun 201017 Jun 2010

Publication series

NameProceedings of the 2010 5th IEEE Conference on Industrial Electronics and Applications, ICIEA 2010

Conference

Conference5th IEEE Conference on Industrial Electronics and Applications, ICIEA 2010
Country/TerritoryTaiwan, Province of China
CityTaichung
Period15/06/1017/06/10

Keywords

  • Cascade observer
  • Fault diagnosis
  • Fault tolerant control
  • H∞
  • Optimal fault observer
  • Spacecraft attitude control systems

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