航天器工程2018，Vol.27Issue(2)：35-40,6.DOI:10.3969/j.issn.1673-8748.2018.02.006
倾斜轨道对地指向小卫星对日跟踪姿态控制算法
Sun-tracking Attitude Control Algorithm for Inclined-orbit Small Satellite with Nadir-pointing
摘要
Abstract
Solar array without yokes is widely used on the small satellite with nadir-pointing,but low sunlight efficiency is the main application constraint for inclined-orbit small satellites.In the paper the attitude tracking control problem of small satellite is analyzed,then a control algorithm is put forward.The relation between normal of solar array and the vector of sun direction is ana-lyzed,and the ideal yaw angle,yaw angular velocity and yaw angular acceleration are derived.The con-trol law for 3 vertically installed reaction wheels is developed based on the satellite attitude dynamics. Lyapunov stability theory is used to prove the asymptotic stability of the closed-loop control system. A small satellite is used to verify the control algorithm.The results show the validity of the control algo-rithm and the effectiveness of control law,and that the solar array can track to the sun effectively.关键词
倾斜轨道小卫星/太阳电池阵/光照条件/姿态跟踪/控制稳定性Key words
inclined-orbit small satellite/solar array/sunlight condition/attitude tracking/control stability分类
航空航天引用本文复制引用
刘燎,孙华苗,李立涛,张迎春..倾斜轨道对地指向小卫星对日跟踪姿态控制算法[J].航天器工程,2018,27(2):35-40,6.基金项目
国家自然科学基金(61473297) （61473297）
