Active-passive-combined rope net dragging safety orbit leaving control method

Abstract

An active-passive-combined rope net dragging safety orbit leaving control method includes: tethered system mass center acceleration is designed according to tethered satellite orbit leaving task, and a propelling system applies corresponding push force on a primary satellite so as to track the designed orbital maneuver path in real time; tension control quality is designed, a tethered winch mechanism generates corresponding tension to be applied to the primary satellite so as to actively control the in-plane swing angle of a tether, and orbital maneuver of the tethered system is achieved by dragging secondary satellites through the orbital maneuver of the primary satellite and tether tension control. The method has the advantages that the large vibration of the in-plane swing angle of the tether is avoided during dragging, the in-plane swing angle of the tether is stabilized in a constraint range, and collision is prevented; meanwhile, the in-plane swing angle is restrained by the appropriate orbital maneuver path design and the active tension control applied to a combined body, and safety orbit leaving control of a target is achieved.

Description

technical field [0001] The invention belongs to the field of control, and relates to an orbit control method of a spacecraft. Background technique [0002] During the deorbiting process of the non-cooperative target dragged by the rope net, the inward and outward swing of the tether surface is the main factor affecting the safe deorbiting of the consortium. When the in-plane swing angle or out-of-plane swing angle is too large, the extreme situation of collision between the dragged target and the mission star is likely to occur. Therefore, the primary goal of the rope net dragging non-cooperative target deorbiting task is to avoid collisions to ensure safe deorbiting. Considering that the tether tension control cannot effectively control the out-of-plane swing angle, the system will face greater danger when the out-of-plane swing angle is too large. [0003] In the past, only the active control method was considered in the de-orbit control of the tether assembly, that is, ...

AI Technical Summary

Problems solved by technology

However, since this control method does not consider the excitation of the tether during the orbital maneuver, the active control needs to pay a large price; , it is easy to stimulate a large in-plane and out-of-plane swing angle of the tether

Since the out-of-plane swing angle is difficult to suppress through tether tension control, it has a great impact on the safety of the joint

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