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

A technology for fault detection and recovery control, applied in the direction of aerospace vehicle guidance devices, etc., can solve problems such as large deviations in orbit control time, achieve the effects of ensuring timeliness, simplifying the ground operation process, and improving the reliability of orbit change

Inactive Publication Date: 2008-07-09
BEIJING INST OF CONTROL ENG
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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

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

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[0021] The autonomous fault detection and recovery control method of the present invention means that during the process of autonomous orbit change, if a certain fault occurs and the orbit control engine cannot perform ignition control according to a predetermined program, the satellite autonomously enters a transitional stage to perform system reset. Structure and re-establish the track control workflow. Then, according to the reset track control time, the track control task is completed. Among them, the process of autonomous orbital change includes two stages: preparation for orbital change and control for orbital change. The preparation phase for the orbit change starts from the star capture phase, and the satellite can enter the inertial attitude adjustment and star orientation phases according to the control of the program time, and finally enter the orbit control phase, that is, the orbit control and orientation, and complete the orbit control tasks autonomously without grou...

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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.

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Application Information

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Owner BEIJING INST OF CONTROL ENG
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