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Extended state observer-based attitude fault-tolerant control of rigid spacecraft

Author

Listed:
  • Lijian Yin
  • Yuanqing Xia
  • Zhihong Deng
  • Baoyu Huo

Abstract

In this paper, a novel fault-tolerant attitude tracking control is proposed for a rigid spacecraft with uncertain inertia matrix, actuator faults, actuator misalignment and external disturbances. The uncertainty of the inertial matrix is caused by the rotation of solar panels, payload movement and fuel consumption, and actuator faults, which include partially failed and completely failed actuators. A novel extended state observer is proposed to estimate the total uncertainties and a fast nonsingular terminal sliding-mode control scheme is proposed to get a faster, higher control precision. Strict finite-time convergence and the concrete convergence time are given. Finally, all the states of the closed-loop system are guaranteed to converge to the corresponding region in a finite time by choosing appropriate parameters. Simulation and comparison results further show the effectiveness and advantages of this method.

Suggested Citation

  • Lijian Yin & Yuanqing Xia & Zhihong Deng & Baoyu Huo, 2018. "Extended state observer-based attitude fault-tolerant control of rigid spacecraft," International Journal of Systems Science, Taylor & Francis Journals, vol. 49(12), pages 2525-2535, September.
    • Handle: RePEc:taf:tsysxx:v:49:y:2018:i:12:p:2525-2535
    DOI: 10.1080/00207721.2018.1498556
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