On-off magnetic moment time series control method for microsatellite

Abstract

The invention provides an on-off magnetic moment time series control method for a microsatellite. The method comprises the following steps: (1) calculating a three-axis magnetic moment; (2) confirming the relationship between each magnetic measurement / control cycle and each satellite control cycle according to the magnetic control precision; (3) comparing the relationships between the calculated magnetic moment and the maximum output magnetic moments of on-off type magnetic torquers, so as to confirm the time series outputs in all the satellite control cycles; (4) completing magnetic measurement twice at the magnetic measurement start time and the magnetic measurement end time in each magnetic measurement / control cycle, so as to complete the on-off magnetic moment time series control. The method has the advantages that a satellite magnetic measurement / control cycle can be acquired according to the magnetic control precision, and pulse width control is converted into an instruction sequence for determining whether a magnetic moment is output in a plurality of control cycles in each magnetic measurement / control cycle or not, so that the magnetic control efficiency is improved, and in-orbit real-time magnetic control of the microsatellite is realized.

Description

Technical field [0001] The invention relates to the technical field of satellites, and in particular to a time sequence control method of switched magnetic moments for micro-satellites. Background technique [0002] The satellite attitude control system generally consists of sensors, actuators and attitude control processing units. In the process of capturing the sun by the magnetron of the micro-satellite, the switch-type magnetic torque device is used as the satellite actuator for magnetron control, the magnetometer is used as the satellite sensor for magnetic measurement, and the satellite computer is used as the attitude control processing unit for calculation. [0003] The magnetic torque device assembly is an important executive component of the carbon satellite attitude control sub-system. It is generally formed by permalloy rods as the magnetic core on which a certain specification and number of enameled wires are wound. The magnetic torque device passes a certain current ...

AI Technical Summary

Problems solved by technology

[0014] The advantage of the present invention is that it provides a time-series control method for the pulse width control deviation of the micro-satellite magnetotorque. Whether multiple control cycles in the magnetic control cycle output the instruction sequence of the magnetic moment solves the problem of time conflicts caused by the lack of time precision of pulse width modulation control and the need for data management of the star computer at the same time, which simplifies the control complexity and improves The efficiency of magnetic control is improved, and the real-time magnetic control of micro-satellites in orbit is realized.

Images