姿态运动、结构振动和相对运动对空间太阳能电站姿态控制稳定性的耦合效应

IF 2.8 3区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Advances in Space Research Pub Date : 2025-06-11 DOI:10.1016/j.asr.2025.06.019

Xiangfei Ji , Guanheng Fan , Yiqun Zhang , Yang Yang , Jianhui Shi , Dengbo Zhang , Ruquan Liang

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引用次数: 0

摘要

空间太阳能电站在太空中获取太阳能，通过光电转换技术和微波无线能量传输将能量传输到地面供用户使用。它具有超大的结构尺寸、超大的结构柔性和大范围的子系统之间的相对运动三个特点，这使得空间太阳能电站的姿态运动、结构振动和相对运动之间存在耦合效应，影响姿态控制系统的稳定效果。充分考虑聚光器作为能量收集和转换载体的特点，建立了空间太阳能电站的耦合动力学模型，研究了耦合动力学模型中的耦合项，提取了影响耦合度的关键子系统结构参数和运动学参数。此外，推导了考虑耦合效应的状态空间模型，提出了一种姿态控制系统，并通过仿真验证了该系统的有效性。详细分析了关键参数对系统稳定性的影响。仿真结果表明，在姿态控制系统稳定后，耦合效应使姿态偏差角仍呈周期性变化。影响耦合效果的主要参数是子系统的相对角速度、旋转半径、子系统的质量和固有频率，它们分别对变化周期和变化幅度有不同程度的影响。

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The coupling effect of attitude motion, structural vibration and relative motion on the stability performance of attitude control of space solar power station

Space solar power station obtains solar energy in space, and transmits the energy to the ground for users to use through photoelectric conversion technology and microwave wireless energy transmission. It has three characteristics of super-large structure size, super-large structure flexibility, and a wide range of relative motion between subsystems, which makes the coupling effect between the attitude motion, structural vibration and relative motion of the space solar power station, affecting the stability effect of the attitude control system. By fully considering the characteristics of concentrator as the carrier of energy collection and conversion, the coupling dynamics model of space solar power station is constructed, the coupling terms in the coupling dynamics model is studied, and the key structural and kinematic parameters of the subsystems that affect the coupling degree are extracted. In addition, the state space model considering the coupling effect is derived, an attitude control system is proposed, which effectiveness is verified by simulation. The influence of key parameters on the stability of the system is analyzed in detail. The simulation results show that after the attitude control system is stabilized, the coupling effect makes the attitude deviation angle still change periodically. The main parameters affecting the coupling effect are the relative angular velocity of the subsystem, the rotation radius, the mass of the subsystem and the natural frequency, which have different degrees of influence on the change period and the change amplitude respectively.

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来源期刊

Advances in Space Research 地学天文-地球科学综合

CiteScore

5.20

自引率

11.50%

发文量

800

审稿时长

5.8 months

期刊介绍： The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc. NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR). All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.