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Electromagnetic force-based cluster spacecraft magnetic moment optimal allocation method

An optimal allocation and spacecraft technology, applied in the direction of constraint-based CAD, instrumentation, electrical digital data processing, etc., can solve the problems of simple introduction and no consideration of the impact of spacecraft systems, etc., and achieve the effect of energy consumption balance

Active Publication Date: 2018-08-03
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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Problems solved by technology

Ahsun et al. ("Control of electromagnetic satellite formations in near-earth orbits") and Lian Kefei et al. ("Electromagnetic Spacecraft Formation Position Tracking Adaptive Cooperative Control") both transformed the control assignment problem into An optimization problem, which optimizes the disturbance torque of the geomagnetic field, but the introduction is relatively brief
Abbott et al. ("Computing minimum-power dipole solutions for interdipole forces using nonlinear constrained optimization with application to electromagnetic formationflight") used the sequential quadratic programming method to solve the magnetic moment to minimize the power consumption of the coil, but this method did not consider the geomagnetic field and the distance between the spacecraft. The influence of the disturbance torque on the spacecraft system

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  • Electromagnetic force-based cluster spacecraft magnetic moment optimal allocation method
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  • Electromagnetic force-based cluster spacecraft magnetic moment optimal allocation method

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Embodiment Construction

[0046] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0047] combine figure 1 , the present invention provides a method for optimal allocation of magnetic moments of cluster spacecraft based on electromagnetic force, comprising the following steps:

[0048] Step 1: Analyze the nature of the magnetic moment distribution problem;

[0049] The problem of magnetic moment distribution of cluster spacecraft based on electromagnetic force is essentially a nonlinear mapping process from the desired control quantity to the current in the three-axis coil of each spacecraft. On the basis of the required electromagnetic force given by the control law, the magnetic moment of each axis of the spacecraft is controlled by rationally distributing the current in each coil, and finally the ...

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Abstract

The invention provides an electromagnetic force-based cluster spacecraft magnetic moment optimal allocation method. A magnetic moment allocation problem is converted into an optimization problem; by establishing an objective function, calculating interference moments and analyzing constraint conditions, currents in axial coils of two spacecrafts are calculated by adopting a simulated annealing algorithm; optimal allocation of magnetic moments is realized; and the speed is higher. The proposed magnetic moment optimal allocation method enables a total interference moment of an interference moment of a geomagnetic field and an interference moment between the spacecrafts to be minimal; and through simulation analysis of magnetic moment allocation of two situations that the magnetic moments ofthe two spacecrafts are not restrained and assumed to be same, a conclusion is obtained that enabling the magnetic moments of the two spacecrafts to be same is more favorable for realizing better allocation, and the energy consumption is balanced.

Description

technical field [0001] The invention belongs to the technical field of magnetic moment distribution method research, in particular to an electromagnetic force-based optimal magnetic moment distribution method for cluster spacecraft. Background technique [0002] Cluster spacecraft refers to a group of spacecraft composed of multiple modular satellites with specific functions, which can use satellite self-organization capabilities to replace manual operations, realize the functions of a whole star, and complete space missions more efficiently. Spacecraft control based on electromagnetic force generally uses three orthogonal coils to achieve relative control of satellite formation. Researches on electromagnetic control, electromagnetic rendezvous and docking, electromagnetic formation, and electromagnetic drag of swarm spacecraft can learn from each other. The optimal distribution of magnetic moments of cluster spacecraft based on electromagnetic force is to study how to dist...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F2111/04G06F30/15
Inventor 胡敏杨茗棋宋俊玲郭光衍徐家辉潘显俊赵玉龙张学阳
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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