Journal of Astronautics ›› 2017, Vol. 38 ›› Issue (11): 1186-1194.doi: 10.3873/j.issn.1000-1328.2017.11.007

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Spacecraft Attitude Fault Tolerant Control with Actuator Fault

GENG Yun hai, JIN Rong yu, CHEN Xue qin, LI Dong bai   

  1. Research Center of Satellite Technology, Harbin Institute of Technology, Harbin 150001,China
  • Received:2017-07-03 Revised:2017-09-14 Online:2017-11-15 Published:2017-11-25

Abstract:

For spacecraft attitude control with actuator (flywheel) fault, robust gain-scheduled PID fault tolerant control is designed based on linear parameter varying (LPV) system. Considering the inertia changing and actuator multiplicative fault, the spacecraft attitude dynamics can be rewritten as an uncertain LPV system. The conservation of the controller algorithm is reduced by affine quadratic stability and the robust performance is ensured by guaranteed cost control. The simulation results show the effectiveness of the controller.

Key words: Spacecraft attitude control, Fault tolerant control, Actuator fault, Linear parameter varying (LPV), Robust gain scheduled control

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