Energy distribution method of GEO satellite under evening launch window during transfer orbit

A technology of launch window and transfer orbit, which is applied in the field of transfer orbit energy distribution under the evening launch window of GEO satellites. Guarantee the whole star temperature and energy security and other issues, to achieve the effect of reducing labor and material costs, high reliability, and simple operation

Active Publication Date: 2019-06-07
CHINA ACADEMY OF SPACE TECHNOLOGY
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AI Technical Summary

Problems solved by technology

[0003] During the orbit transfer period of a GEO satellite, the satellite generally undergoes multiple orbit changes. During the orbit change period, the satellite attitude changes greatly, and the solar panels of the satellite are greatly affected by the sunlight. At present, there is no reasonable allocation of energy for the entire sta

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  • Energy distribution method of GEO satellite under evening launch window during transfer orbit

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Embodiment Construction

[0027] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0028] GEO satellites are launched under the launch window in the evening Beijing time. Compared with the launch window in the early morning, the illumination conditions of the solar panels become worse during the orbit change of the satellite, which leads to a larger discharge depth of the satellite battery pack, resulting in a decrease in the power margin of the whole star, and energy Risk of imbalance increases, endangering satellite security.

[0029] The present invention provides a transfer orbit energy allocation method under the launch window of GEO satellites in the evening. Aiming at the thermal control subsystem that consumes the most energy for the entire satellite during the transfer orbit change period of the satellite, the thermal control strategy during the orbit change period is adjusted. The specific method Yes: Before the firs...

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Abstract

An energy distribution method of a GEO satellite under an evening launch window during a transfer orbit relates to the field of geosynchronous orbit satellite energy distribution. The method comprises: step 1, switching on a communication cabin in the satellite to replace a heater; step 2, at reaching the moment t1 before the first orbit change of the satellite, raising the temperature value of the communication cabin replacing the heater to A2; step 3, at reaching the moment t2 before the first orbit change, reducing the temperature value to A3; step 4, raising the temperature value to A4 until the first orbit change of the satellite is completed; step 5, at reaching the moment t3 before the second orbit change of the satellite, raising the temperature value to A5; step 6, reducing the temperature value to A6 at reaching the moment t4 before the first orbit change; and step 7, raising the temperature value to A7 until the second orbit change of the satellite is completed. The method is applicable to the geosynchronous orbit satellite under the evening launch window, the satellite reasonably distributes the energy of the whole satellite during the transfer orbit, and the energy security for various missions of the satellite during the transfer orbit is ensured.

Description

technical field [0001] The invention relates to the field of geosynchronous orbit satellite energy distribution, in particular to a transfer orbit energy distribution method under the evening launch window of GEO satellites. Background technique [0002] After the GEO satellite is launched into the transfer orbit, the satellite relies on its own power to complete the orbit change and fixed point. The orbit that the satellite passes from the satellite-rocket separation point to the synchronous orbit working point is called the transfer orbit. The main tasks of the GEO satellite transfer orbit are to complete satellite sun capture, earth capture, engine ignition, pyrotechnics unlocking and extraterrestrial components deployment, etc. During the period, keep the satellite attitude, energy and temperature control within the normal working range. [0003] During the orbit transfer period of a GEO satellite, the satellite generally undergoes multiple orbit changes. During the orbi...

Claims

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Application Information

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IPC IPC(8): B64G1/24B64G1/44B64G1/42
Inventor 焦荣惠乔心全秦素然李峰王凤春王利然孙世卓司佳佳
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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