Optimal Release Control of Companion Satellite System Using Electromagnetic Forces
Zengwen Xu, Peng Shi,Yushan Zhao
(School of Astronautics, Beihang University, Beijing 100191, China)
Abstract:
Electromagnetic forces generated by the inter-action of component satellites can be used to release companion satellites. Optimal release trajectories for companion satellite system using inter-electromagnetic forces were investigated. Firstly, nonlinear relative motion dynamic equations of a two-craft electromagnetic companion satellite system were derived in spatial polar coordinates. Then principles of electromagnetic satellite formation flying were introduced. Secondly, the characteristics of the electromagnetic companion satellites release were analyzed and optimal release trajectories of companion satellites using electromagnetic forces were obtained using Gauss pseudospectral method. Three performance criteria were chosen as minimum time, minimum acceleration of the separation distance and minimum control acceleration. Finally, three release examples including expansion along separation distance, rotation in orbital plane and stable formation reconfiguration were given to demonstrate the feasibility of this method. Results indicated that the release trajectories can converge to optimal solutions effectively and the concept of release companion satellites using electromagnetic forces is practicable.
Key words: companion satellites electromagnetic formation flying optimal release trajectory Gauss pseudospectral method
DOI:10.11916/j.issn.1005-9113.2015.04.004
Clc Number:V412.4
Fund:
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Optimal Release Control of Companion Satellite System Using Electromagnetic Forces
本站小编 哈尔滨工业大学/2019-10-23
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