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An energy balance method taking into account multiple descending node locations

A technology of energy balance and descending node, applied in the fields of instruments, complex mathematical operations, informatics, etc., can solve the problem of increasing the cost of satellite constellations

Active Publication Date: 2018-12-21
AEROSPACE DONGFANGHONG SATELLITE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solar arrays in multiple states of technology leading to increased cost of satellite constellations

Method used

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  • An energy balance method taking into account multiple descending node locations
  • An energy balance method taking into account multiple descending node locations
  • An energy balance method taking into account multiple descending node locations

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Experimental program
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Embodiment

[0129] For a satellite constellation with a total of three satellites, the local time of the descending node is 9:00 am, 13:30 pm and 15:00 pm orbit design respectively. The parameter configuration (bias angle selection, solar array area and power subsystem configuration) obtained according to the calculation method of the present invention is as shown in Table 1:

[0130] Table 1 Constellation parameter configuration

[0131]

[0132] In the case of selecting the above parameter configuration, the energy balance calculation results of the three satellites in the constellation are shown in Table 2-Table 4:

[0133] Table 2 Calculation results of satellite 1 energy balance

[0134]

[0135] Table 3 Calculation results of satellite 2 energy balance

[0136]

[0137] Table 4 Calculation results of satellite 3 energy balance

[0138]

[0139] According to the above calculation results, the configurations of the power subsystems of the three satellites in the constel...

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Abstract

Provided is an energy balancing method taking descending nodes into consideration. The method is used for selecting different deviation angles at places of different descending nodes in order to improve the illuminative condition of a solar cell array. Under the deviation condition, the area estimation of the solar cell array, the output power calculation of the solar cell array and energy balancing analyses can be made so that energy balancing analyses of a satellite power system at places of s of different descending nodes is achieved. The method has following beneficial effects: through uniform planning, descending nodes can be taken into consideration at different deviation angles on the condition that the solar cell array is same in area. During the process of selecting deviation angles, selections of the deviation angles are optimized so that the area of the solar cell array is optimized and the state of the solar cell array is uniform. Therefore, development cost is greatly saved.

Description

technical field [0001] The invention relates to an energy balance method taking into account multiple descending node positions, which is applicable to a multi-satellite network constellation, and when each satellite in the constellation adopts a different descending node position, it belongs to the field of overall satellite design. Background technique [0002] The traditional satellite energy balance analysis method is to calculate the energy balance for a specific satellite and give the satellite power system design results. In the design stage, computer simulation of power flow and energy calculation is used to determine whether the satellite is in a balanced state within one or more orbital periods by assuming a set of solar cell array and battery pack parameters under known load distribution through computer programs. When it cannot be balanced, modify the parameters of the solar cell array and the battery group, and perform calculation again. The energy balance anal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/10
CPCG16Z99/00
Inventor 贾晓冬张勇鄢婉娟李琳琳于鑫
Owner AEROSPACE DONGFANGHONG SATELLITE
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