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Dynamics and control of the distributed tethered solar power satellite system on the geo-synchronous orbit

2015年04月08日 18:58  点击:[]

The National Natural Science Foundation of China, No.11272071, 2013-2016

Zhiqin CAI

The solar power satellite (SPS) system offers the fabulously applied potentiality for the future power generation/transmission, so the dynamics and control of distributed tethered-SPS on the geo-synchronous orbit are the new and interesting scientific field at home and abroad. In this science foundation, the dynamics and control of the system will be investigated. Firstly, Based on the flexible tether model and the flexible composite laryer panel, a new dynamical formulation will be developed, which can be utilized to describe the coupling dynamics of the orbital and attitude motion of the bus system, the attitude motion and the vibration of the tethered-subpanel and the vibration of the tethers. Secondly, in order to deeply investigate the dynamical characteristics of the system , the key parameters relevant to the system stability will be studied by structure-preserving geometric numerical integration of the uncontrolled dynamics. Finally, in order to carry out the integration control on the orbital motion, stationkeeping, and vibration of tethers, simultaneously, a fast, precise, real-time and easyoperation nonlinear controller will be designed by combining the independent control methods on the orbital and attitude control of the bus system, the attitude and vibration control of the tethered-subpanel and the vibration control of tethers. Furthermore, the dynamics and control during reconfiguration stage can be considered. The above work will not only provide the reliably theoretic and practical foundation for the sustainable development of our nation’s power generation and space exploration, but also facilitate the fundamental theories and applications of dynamics and control.

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