时变状态反馈的定时航天器姿态控制

IF 1.3 4区工程技术 Q2 ENGINEERING, AEROSPACE

Journal of Spacecraft and Rockets Pub Date : 2023-07-01 DOI:10.2514/1.a35588

Vikram Kumar Saini, Dipak Kumar Giri, Renuganth Varatharajoo

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引用次数: 0

摘要

针对积分器链的任意时间稳定和跟踪问题，提出了一种基于反推的时变反馈控制律。规定的任意时间控制允许在不考虑初始条件或系统参数的情况下选择收敛时间。利用该充分条件证明了系统的Lyapunov稳定性。给出了收敛时间对最大所需控制转矩影响的分析结果和解释。滑模控制与时变反馈方法相结合，使控制律具有鲁棒性，能够抑制有界扰动。然后将该控制律应用于易受有界扰动影响的航天器姿态运动。采用基于四元数的姿态表示来避免数学奇点。控制律是用四个分量的全四元数而不是矢量部分的三个分量来写的。最后，给出了令人满意的数值模拟结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Prescribed-Time Spacecraft Attitude Control Using Time-Varying State Feedback

A time-varying feedback control law based on backstepping is proposed for the prescribed arbitrary time stabilization and tracking for a chain of integrators. Prescribed arbitrary time control permits the convergence time to be chosen regardless of the initial conditions or system parameters. The sufficient condition is used to demonstrate Lyapunov stability for the system. Analytical results and explanations are provided for the influence of convergence time on the maximum needed control torque. Sliding mode control is paired with the time-varying feedback approach to make the control law robust to reject the bounded disturbance. The control law is then applied to a spacecraft’s attitude motion that is susceptible to the bounded disturbance. A quaternion-based attitude representation is utilized to avoid mathematical singularity. The control law is written using a full quaternion with four components instead of only three in the vector part. Finally, promising numerical simulation results are presented.

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来源期刊

Journal of Spacecraft and Rockets 工程技术-工程：宇航

CiteScore

3.60

自引率

18.80%

发文量

185

审稿时长

4.5 months

期刊介绍： This Journal, that started it all back in 1963, is devoted to the advancement of the science and technology of astronautics and aeronautics through the dissemination of original archival research papers disclosing new theoretical developments and/or experimental result. The topics include aeroacoustics, aerodynamics, combustion, fundamentals of propulsion, fluid mechanics and reacting flows, fundamental aspects of the aerospace environment, hydrodynamics, lasers and associated phenomena, plasmas, research instrumentation and facilities, structural mechanics and materials, optimization, and thermomechanics and thermochemistry. Papers also are sought which review in an intensive manner the results of recent research developments on any of the topics listed above.