The invention provides a method for driving a solar wing to face the sun through a low-inclination-angle orbit uniaxial SADA. The method comprises the following steps: S1, determining coordinates of asolar vector in an orbit system by an on-board sensor; S2, calculating a satellite yaw angle according to the projection of the sun vector on the XoOYo plane of the orbit; S3, calculating expected yaw angle and angular velocity information in satellite attitude motion; S4, calculating the rotation angle of a solar wing driving device according to an included angle between the normal coordinate ofthe solar panel and the solar vector when the solar wing driving device is in a zero position; and S5, controlling the satellite to maneuver by the on-board actuating mechanism, and rotating the solar wing driving device in a matching mode to ensure that the solar wing points to the sun. The invention further provides a system for driving the solar wing to face the sun through the low-inclination-angle orbit single-shaft SADA. The method has the advantages that the single-axis SADA is used for replacing the double-axis SADA in the low-inclination-angle orbit to achieve sun orientation of thesolar wing, cost is reduced, reliability is improved, and control is easy.
本发明提供了一种低倾角轨道单轴SADA驱动太阳翼对日的方法,包括以下步骤:S1、星上传感器确定太阳矢量在轨道系中的坐标;S2、根据太阳矢量在轨道XoOYo平面的投影,计算卫星偏航角;S3、计算卫星姿态运动中期望的偏航角及角速度信息;S4、根据太阳翼驱动装置零位时太阳帆板法线坐标与太阳矢量夹角计算太阳翼驱动装置转角;S5、星上执行机构控制卫星机动,同时太阳翼驱动装置配合转动,以保证太阳翼指向太阳。本发明还提供了一种低倾角轨道单轴SADA驱动太阳翼对日的系统。本发明的有益效果是:在低倾角轨道使用单轴SADA替代双轴SADA实现太阳翼对日定向,具有减少成本,提高可靠性,控制简单等优点。
Method and system for driving solar wing to face the sun through low-inclination-angle orbit single-shaft SADA
一种低倾角轨道单轴SADA驱动太阳翼对日的方法与系统
2020-10-20
Patent
Electronic Resource
Chinese
IPC: | B64G Raumfahrt , COSMONAUTICS |
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