Single Hall sensor based calibration method for solar panel rotation accuracy

Abstract

The invention provides a single Hall sensor based calibration method for solar panel rotation accuracy. The method comprises the following steps: powering up a satellite, powering up a solar panel driving mechanism and a Hall sensor, and starting the solar panel driving mechanism to rotate; reading a preset width value of a Hall sensor signal from a ROM, setting the zero position of the solar panel, and calibrating the position of the solar panel at the time when the Hall sensor is triggered; starting an on-orbit solar tracking operation mode of the solar panel, automatically scanning signal width of the Hall sensor in each tracking period, and updating width value of the Hall sensor signal in the ROM; jumping to step 2 and performing execution circularly. Rotation errors of a solar paneldriving motor and sensor detection errors caused by magnetic steel magnetic weakening of the Hall sensor are eliminated, the on-orbit rotation accuracy of the solar panel is improved, and the method can be applied to rotation control tasks of satellite solar panels in various models.

Description

technical field [0001] The invention relates to a new method for automatically calibrating the rotation precision of an in-orbit satellite solar wing sail, which can be applied to the drive control task of the satellite solar wing sail. Background technique [0002] The rotation or swing of the satellite solar wing sail is an important way to realize the solar wing battery array tracking the sun's trajectory and contacting the sun with the largest battery array area. In order to improve the motion accuracy of the solar wing sail The calibration method of motion accuracy of the plate puts forward higher requirements. [0003] At present, the commonly used position detection and calibration methods of satellite solar wing sails are: position detection method based on multi-Hall sensor and position detection and calibration method based on resolver. Among them, the position detection method based on multi-Hall sensors is to use the mutual position relationship between two or m...

AI Technical Summary

Problems solved by technology

Among them, the position detection method based on multi-Hall sensors is to use the mutual position relationship between two or more than two Hall sensors to determine the exact position of the solar wing sail, which has high reliability and can accurately correct the position of the solar wing sail. Rail rotation error, but this method does not take into account the sensor detection error caused by the weakening of the Hall sensor magnetic steel

The position detection and calibration method based on the resolver can accurately detect and calibrate the position accuracy of the solar wing sail, but the cost of the resolver to be applied on the satellite is relatively high

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