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Proceedings Paper

A fault-tolerant attitude control system for a satellite based on fuzzy global sliding mode control algorithm
Author(s): Jinjin Liang; Chaoyang Dong; Qing Wang
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Paper Abstract

The structures and missions of modern satellites are very complicated, so the reliability of satellites is becoming increasingly important. This paper proposed a fault-tolerant attitude control system for a satellite based on Fuzzy Global Sliding Mode Control (FGSMC) algorithm. We designed a controller for the nonlinear model of a satellite. By designing a global sliding surface, this controller can ensure that the response of the system has global robustness against the uncertainties of system and external disturbances. In this paper attitude control is performed by four reaction flywheels. The attitude control system distributed the three control torques to the four reaction flywheels according to the distribution matrix. We deduced the formula to calculate the distribution matrix. Paper proved the stability of the designed control law, and simulated the attitude control system. The simulation results show that the attitude control law has high accuracy and robustness.

Paper Details

Date Published: 13 October 2008
PDF: 9 pages
Proc. SPIE 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment, 712827 (13 October 2008); doi: 10.1117/12.806863
Show Author Affiliations
Jinjin Liang, Beijing Univ. of Aeronautics and Astronautics (China)
Chaoyang Dong, Beijing Univ. of Aeronautics and Astronautics (China)
Qing Wang, Beijing Univ. of Aeronautics and Astronautics (China)


Published in SPIE Proceedings Vol. 7128:
Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment

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