Double-shaft solar panel driving control method

Abstract

The invention relates to a double-axis solar panel driving control method, which comprises the following steps of: calculating an orbit illumination condition, namely an included angle beta between an orbit system sun vector So and an orbit surface, through an attitude and orbit control system according to a time module and an orbit determination module; according to the feedback SADA rotation angle and the solar vector of the system measured by the satellite platform, calculating the included angle between the normal of the sailboard and the solar vector of the system in real time; different control mode states of the sailboard driving mechanism are determined according to the solar vector of the orbital system and the included angle beta of the orbital plane; and performing control instruction distribution on each axis of the double-axis SADA according to each refined control mode. According to the method, on the basis of ensuring on-satellite energy when the SADA controls the sailboard to face the sun, vibration coupling caused by double-shaft rotation in an existing design can be reduced as much as possible, and satellite attitude stability is ensured; secondly, the load working loss time and the working attitude stability are reduced, and the effective working life of the satellite is guaranteed; in addition, on-satellite shunting pressure and heat dissipation pressure can be reduced.

Description

technical field [0001] The invention relates to the field of satellite technology research, in particular to a dual-axis solar panel drive control method. Background technique [0002] With the introduction of new tasks and new requirements, satellite Internet has been listed as a "new infrastructure" category, and the construction of satellite Internet has risen to the level of national construction. The advantages of low loss and low requirements for satellites and user terminals have become an important part of the "new infrastructure" construction. [0003] Among them, the inclined orbit of non-polar low orbit (the orbit angle is greater than 0° and less than 90°) has become the main force in constellation construction due to the advantage of the number of return visits by the main target users. Looking at the international scope, SpaceX and Boeing have also Constellation construction is carried out on the orbital planes of multiple inclined orbits with inclination angl...

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Problems solved by technology

[0013] In view of the above defects, the present invention provides a dual-axis solar panel drive control method, which is used to solve the conflict between the satellite’s active sun alignment and the attitude requirements of the load in the existing design, reduce the working time of the load and bring attitude disturbances at the same time, and the dual-axis Real-time rotation of SADA in two directions leads to real-time changes in inertia, which is not conducive to the attitude of the whole star. The two-axis SADA sailboard rotation control is prone to coupling and increases the disturbance of satellite attitude, and does not consider the change of illumination time, which leads to excessive energy surplus at a specific time end. Issues such as shunt flow and heat dissipation pressure

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