Fault diagnosis on Partial-Effect-Loss of nonlinear actuators in SACS

Zhaohui Cen, Wei Jiaolong, Jiang Rui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

For some control system with dynamics, actuators have generally nonlinearity and its output is difficult to measure. Especially, if a Partial-Effect-Loss fault occurs in the actuator, it becomes hard for Fault Diagnosis (FD) on these systems. In this paper, a nonlinear adaptive observer is proposed to solve this problem. By estimating the fault offset value, the actuator output is indirectly estimated and fault severity is estimated based on the fault offset value. The proposed FD scheme is finally validated by a FD case from the high-fidelity Reaction Wheel (RW) in Satellite Attitude Control System (SACS).

Original languageEnglish
Title of host publicationProceedings of the IASTED International Conference on Intelligent Systems and Control
Pages68-73
Number of pages6
DOIs
Publication statusPublished - 9 Nov 2011
Externally publishedYes
Event13th IASTED International Conference on Intelligent Systems and Control, ISC 2011 - Cambridge, United Kingdom
Duration: 11 Jul 201113 Jul 2011

Other

Other13th IASTED International Conference on Intelligent Systems and Control, ISC 2011
CountryUnited Kingdom
CityCambridge
Period11/7/1113/7/11

    Fingerprint

Keywords

  • Adaptive observer
  • Nonlinearity for actuator
  • Partial-effect-loss
  • Reaction wheel
  • SACS

ASJC Scopus subject areas

  • Software
  • Artificial Intelligence
  • Control and Systems Engineering
  • Modelling and Simulation
  • Theoretical Computer Science

Cite this

Cen, Z., Jiaolong, W., & Rui, J. (2011). Fault diagnosis on Partial-Effect-Loss of nonlinear actuators in SACS. In Proceedings of the IASTED International Conference on Intelligent Systems and Control (pp. 68-73) https://doi.org/10.2316/P.2011.744-065