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Method for compositely controlling attitudes and orbits of in-orbit dragging combination spacecrafts

A composite control and combination technology, which is applied in three-dimensional position/channel control and other directions to achieve the effects of satisfying attitude control accuracy and orbital error, improving service life and saving fuel.

Inactive Publication Date: 2014-08-06
SHANGHAI XINYUE METER FACTORY
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

It is very necessary to design an attitude-orbit compound control method for the composite spacecraft towed in orbit, so the applicant provides an existing method

Method used

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  • Method for compositely controlling attitudes and orbits of in-orbit dragging combination spacecrafts
  • Method for compositely controlling attitudes and orbits of in-orbit dragging combination spacecrafts
  • Method for compositely controlling attitudes and orbits of in-orbit dragging combination spacecrafts

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Embodiment Construction

[0025] Such as figure 1 Shown is a schematic diagram of the in-orbit towing of the serving spacecraft to the target spacecraft.

[0026] The serving spacecraft takes over control of the assembly, using the serving spacecraft's body coordinate system As a combined body system, that is, during the in-orbit towing process axis pointing in the direction of flight, axis pointing to the center of the earth, Determined by the right-hand rule.

[0027] Method steps of the present invention are described as follows:

[0028] Step 1: On-orbit identification of mass characteristic parameters of the combined spacecraft

[0029] Such as figure 2 Shown is the schematic diagram of the combination parameter identification method. The quality characteristic parameter identification of the assembly is to use the system input (control moment) and output (attitude measurement) measured during the operation of the spacecraft attitude control system, and establish a mathematical model m...

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Abstract

The invention discloses a method for compositely controlling attitudes and orbits of in-orbit dragging combination spacecrafts. The method includes steps of identifying mass property parameters of the combination spacecrafts in an in-orbit manner; determining composite control on the attitudes and the orbits of the combination spacecrafts in orbit maneuver periods. The method has the advantages that abandoned spatial targets can be deorbited and maneuvered under the conditions of high disturbance torque and uncertain parameters; the method can be used for cleaning abandoned satellite or space debris in the earth orbit, and accordingly clean running environments can be provided for satellites which run normally.

Description

[0001] technical field [0002] The invention relates to the on-orbit service technology of spacecraft, in particular to a method for realizing the on-orbit towing of abandoned satellites by a combination attitude-orbit compound control method. Background technique [0003] Abandoned satellites or space debris occupy limited space resources and pose a threat to orbiting spacecraft. Capture and drag it to the graveyard orbit by the service spacecraft to restore a clean space environment, and the service spacecraft can be reused many times to clean up multiple abandoned satellites. [0004] After the service spacecraft captures the target, the assembly is completely controlled by the service spacecraft, and its quality characteristics have changed greatly compared with before: the mass and moment of inertia increase, and the center of mass shifts. The problems caused by the thrust asymmetry, torque distribution, and quality characteristic parameters cannot be obtained accur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
Inventor 卢山刘超镇武海雷贺亮韩飞李剑
Owner SHANGHAI XINYUE METER FACTORY
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