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Fault tolerant control for spacecraft assembled with SGCMGS based on the fault decoupling

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Abstract

A fault tolerant control method for rigid spacecraft assembled with SGCMGs as actuator is presented. First of all, considering partial failure of the SGCMG, the spacecraft model and the CMG model are described. In order to achieve the attitude stability of the spacecraft, the PD controller is designed to get the expected control torque without considering the fault of the SGCMGs firstly. Then, the Singular Robustness Escape/Avoidance steering law is adopted to obtain the expected gimbal rate. The fault tolerant control method for each SGCMG is designed to track the expected gimbal rate without knowing the prior information of the fault. The simulation results indicate the effectiveness of the algorithm for attitude control of the spacecraft.

Original languageEnglish
Title of host publicationSpaceflight Mechanics 2017
EditorsJon A. Sims, Frederick A. Leve, Jay W. McMahon, Yanping Guo
PublisherUnivelt Inc.
Pages2727-2742
Number of pages16
ISBN (Print)9780877036371
StatePublished - 2017
Event27th AAS/AIAA Space Flight Mechanics Meeting, 2017 - San Antonio, United States
Duration: 5 Feb 20179 Feb 2017

Publication series

NameAdvances in the Astronautical Sciences
Volume160
ISSN (Print)0065-3438

Conference

Conference27th AAS/AIAA Space Flight Mechanics Meeting, 2017
Country/TerritoryUnited States
CitySan Antonio
Period5/02/179/02/17

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