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

被引：0
作者：
Cui K. [1 ]
Duan G. [1 ,2 ]
机构：
[1] Center for Control Theory and Guidance Technology, Harbin Institute of Technology, Harbin
[2] Center for Control Science and Technology, Southern University of Science and Technology, Shenzhen
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2024年 / 45卷 / 01期
基金：
中国国家自然科学基金;
关键词：
anti-disturbance control; combined spacecraft; discrete-time step backward HOFA model; disturbance observer; parametric design;
D O I：
10.7527/S1000-6893.2024.28892
中图分类号：
学科分类号：
摘要：
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. © 2024 Chinese Society of Astronautics. All rights reserved.
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