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An on-orbit realization method of fuel consumption balance in formation satellite system

An implementation method and satellite system technology, which is applied in the field of on-orbit realization of fuel balance in formation satellite systems, can solve problems such as complex algorithms and lack of on-orbit autonomous realizability, and achieve the effects of clear meaning, achievable algorithms, and fuel consumption

Active Publication Date: 2019-06-21
SHANGHAI AEROSPACE CONTROL TECH INST
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Problems solved by technology

According to the actual on-orbit formation tasks, there are shortcomings such as relatively ideal constraint conditions, complex algorithms, and lack of on-orbit autonomous realizability.

Method used

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  • An on-orbit realization method of fuel consumption balance in formation satellite system
  • An on-orbit realization method of fuel consumption balance in formation satellite system
  • An on-orbit realization method of fuel consumption balance in formation satellite system

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Embodiment Construction

[0022] The difference in fuel consumption between satellites not only affects the service life of formation satellites, but also affects the stability of formation configuration (the spatial relative relationship between formation satellites) and the precision of formation control by intensifying the perturbation effect of atmospheric drag. Therefore, the formation satellite system needs to manage the fuel balance between the satellites. Aiming at the deficiencies in the prior art, the technical problem solved by the present invention is to provide a method for on-orbit realization of formation satellite fuel balance, which can realize autonomous fuel balance management on the satellite.

[0023] Further to the working process of the present invention below, whole method flow process is as such figure 1 As shown, see the following description for details:

[0024] Step 1 After the formation control for the kth time (k≥1), the satellite autonomously calculates the volume of he...

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Abstract

The invention relates to an in-orbit fuel consumption balancing method of a formation satellite system. The method comprises the following steps that 1) after kth formation control, the fuel consumption Ek of the formation control is calculated; 2) after the kth formation control, a formation control parameter [delta]lk of two satellite orbit periods is determined; 3) the sum SEk of cumulative fuel consumption of formation control and a residual error [delta]lk of present formation control are substituted into a formula SEk>=k1&&[delta]lk>=k2 for determination; and 4) if the formula is valid, marks of main and auxiliary satellites are switched autonomous on the satellites, main and auxiliary satellite switching control is carried out via a ground annotation instruction or on satellites autonomously so that a new main satellite operates in a reference orbit, parameters are set as initial values, a new auxiliary satellite executes a formation control task, and the steps 1) to 3) are repeated; or if the formula is invalid, the original auxiliary satellite continues to carry out formation control. The method is high in engineering realization performance, can be used to save fuels, requirements of formation satellite tasks are taken into consideration, and the autonomous level of the satellites can be improved.

Description

technical field [0001] The invention relates to an on-orbit realization method of fuel balance in a formation satellite system. Background technique [0002] With the continuous development of satellite technology, more and more countries and organizations are more and more inclined to use multiple satellites to form a formation satellite system to achieve space mission goals. Therefore, the control task of the formation satellite system is becoming more and more complex, and it is also facing the pressure of high control accuracy, autonomy and long life. [0003] At present, the decisive factors affecting the life of satellites mainly include fuel and electric energy, and fuel consumption is irreversible. Therefore, since the relative relationship between formation satellites needs to be realized through formation control and fuel consumption, the smooth development of formation missions, service life, and control capabilities not only depend on the absolute formation cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 完备杜耀珂王文妍贾艳胜杨盛庆何煜斌汪礼成王禹刘美师陆智俊朱郁斐
Owner SHANGHAI AEROSPACE CONTROL TECH INST
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