Autonomous control method suitable for solar wing position safety in Mars detection

Abstract

The invention relates to an autonomous control method suitable for solar wing position safety in Mars detection and belongs to the technical field of solar wing control in Mars detection. The method comprises the following steps that: S1, the safe position of a solar wing in an orbit control period can be determined, then the solar wing is biased towards the safe position; S2, the maximum durationrequired for biasing the solar wing to the safe position before orbit control is calculated, and serve as a time threshold of solar wing fault diagnosis; S3, whether the solar wing has a biasing fault or not is judged according to the time threshold of the solar wing fault diagnosis, orbit control is cancelled if the biasing fault occurs, and closed-loop tracking sun alignment is performed on thesolar wing, otherwise, after orbit control is normally executed, the solar wing adopts closed-loop tracking to face the sun. With the method adopted, the safety and reliability of a solar wing systemin a whole Mars detection process are improved.

Description

technical field [0001] The invention relates to an autonomous control method suitable for the safe position of a solar wing for Mars exploration, in particular to an autonomous control method for the safe position of a solar wing for Mars exploration under high-thrust orbit control, and belongs to the technical field of solar wing control for Mars exploration. Background technique [0002] my country will carry out its first Mars exploration mission in 2020; the solar wing is the key to the energy guarantee of the probe. Under high-thrust orbit control, there are constraints on the safe position of the solar wing. Ordinary near-Earth satellites bias the solar wings to a safe angle through ground control before orbit control. Considering the satellite-ground delay, it is necessary to bias the solar wings to a safe position by ground control several hours in advance, which may threaten the energy security of the star. Therefore prior art is not suitable for Mars exploration mi...

AI Technical Summary

Problems solved by technology

Ordinary near-Earth satellites bias the solar wings to a safe angle through ground control before orbit control. Considering the satellite-ground delay, it is necessary to bias the solar wings to a safe position by ground control several hours in advance, which may threaten the energy security of the star. Therefore existing technology is not suitable for Mars exploration missions

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