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Acta Aeronautica et Astronautica Sinica ›› 2024, Vol. 45 ›› Issue (1): 628892-628892.doi: 10.7527/S1000-6893.2024.28892

• Special Topic: Fully Actuated System Theory and Its Applications in Aerospace Field • Previous Articles     Next Articles

High⁃order fully actuated anti⁃disturbance control for a type of combined spacecraft based on disturbance observer

Kaixin CUI1, Guangren DUAN1,2()   

  1. 1.Center for Control Theory and Guidance Technology,Harbin Institute of Technology,Harbin 150001,China
    2.Center for Control Science and Technology,Southern University of Science and Technology,Shenzhen 518055,China
  • Received:2023-04-20 Revised:2023-05-15 Accepted:2023-07-20 Online:2024-01-15 Published:2023-08-07
  • Contact: Guangren DUAN E-mail:g.r.duan@hit.edu.cn
  • Supported by:
    National Natural Science Foundation of China(62188101)

Abstract:

This paper investigates the High-Order Fully Actuated (HOFA) anti-disturbance control for a type of actual combined spacecraft, in which disturbances include input disturbances with unknown parameters and constant external disturbances. First, a generalized discrete-time step backward HOFA model is introduced, and the disturbances are estimated for each of the two disturbances. Then, based on the HOFA system framework, a composite controller based on the disturbance observer is designed, which can not only effectively suppress disturbances, but also obtain a closed-loop system with an arbitrarily assignable eigenstructure. Secondly, the complete parameterized forms of the observer gain matrix and the feedback control matrix are established by using the parameterization method. Finally, the proposed method is applied to a type of actual combined spacecraft simulator, and the simulation and experimental results fully demonstrate the effectiveness of the proposed method.

Key words: combined spacecraft, discrete-time step backward HOFA model, disturbance observer, anti-disturbance control, parametric design

CLC Number: