Satellite cluster control method based on artificial potential field method containing dynamic avoidance and damping characteristics

Abstract

The invention discloses a satellite cluster control method based on an artificial potential field method including dynamic avoidance and damping characteristics, and the method comprises the steps: taking a main satellite as a center, dividing a communication region of the main satellite, and employing different artificial potential fields in different regions, thereby maintaining the configuration stability of a satellite cluster; according to the relative positions and the relative speeds of the members in the satellite cluster, designing an artificial potential field method controller which takes each member satellite as a center and contains dynamic avoidance, thereby ensuring that the member satellites in the cluster do not collide in a task period. Aiming at the conditions that the space task requirement is increased and the number of the existing satellites is not enough to complete the task, the artificial potential field method controller containing the damping characteristic is designed, so the newly added satellites can be effectively ensured to be safely and reliably added into the current cluster to form a new cluster. The method is suitable for configuration maintenance, collision avoidance and cluster recombination of the satellite cluster under the space perturbation condition.

Description

technical field [0001] The invention relates to the technical field of satellite control, in particular to a satellite cluster control method based on an artificial potential field method including dynamic avoidance and damping characteristics. Background technique [0002] With the continuous development of aerospace technology, a group composed of multiple intelligent small satellites can share information and tasks. Although the functions of small satellites are relatively simple, they can completely realize some complex functions of traditional large satellites through networking and flight, and can Greatly reduce the cost and risk borne by satellites, and significantly enhance the flexibility and robustness of the system. The main challenge of the satellite cluster comes from the dynamic coupling between the satellite and the environment. When the satellite cluster moves in space, it will face environmental disturbances, such as J2 perturbation, air resistance and solar...

AI Technical Summary

Problems solved by technology

[0004] In the control process of the satellite cluster, not only the integrity of the cluster must be maintained, but also the collision avoidance between the cluster members should be considered. The collision avoidance strategy based on the artificial potential field method purely based on the relative position cannot meet the task requirements under some special conditions.

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