Method for detecting, recovering and controlling for independence trouble during orbital transfer course

Abstract

An autonomous fault detection recovery control method during the orbital transfer includes (1) the autonomous fault detection: firstly, setting fault judgment conditions at a star acquisition stage, an inertia attitude adjusting stage, a star directional stage and a rail control directional stage of an autonomous orbital transfer method; introducing judgment conditions during the orbital transfer process; (2) the autonomous recovery control: when a satellite autonomously detects out faults and enters the recovery control, the autonomous control satellite on the star enters a velocity damping stage; when the attitude angular velocity damping of the satellite is successful, the satellite autonomously enters the star acquisition stage; the rail control process is reinstalled, which means that the starting time of every stage during the subsequent orbital transfer process; the satellite transfers into the corresponding working stage to recover the orbital control according to the reinstalled time. The method of the invention improves the reliability of the orbital transfer, ensures the accurate implementation of the orbital control in time and can better ensure the realization of the only window for the orbital control.

Description

technical field [0001] The invention relates to a method for autonomous fault detection and self-restoration control during orbit change of a spacecraft. After system fault detection, the orbit change process is set independently, and the orbit control can be continued without ground support. Background technique [0002] The on-board autonomous fault detection during the satellite orbit control means that the satellite can judge the fault in a timely manner through the fault detection means set on the satellite without the intervention of the ground, and then take corresponding fault countermeasures. The self-recovery control on the star means that under certain circumstances, the star can restore control by itself after the control is interrupted. [0003] At present, the orbit change control of domestic geostationary orbit satellites mostly adopts the ground control method. If the attitude continues to oscillate during the orbit change process, and the tank pressure chang...

AI Technical Summary

Problems solved by technology

This kind of control strategy makes the actual implementation time of orbit control deviate greatly from the required orbit control time. It is more suitable for satellite orbit control that does not have strict requirements on the timing of orbit control implementation, but for satellites with unique orbit control window requirements (such as lunar Probe Satellite) is no longer applicable

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