基于干扰观测器的天基观测航天器姿态控制设计  

Design of Attitude Control System of Space-Based Observation Spacecraft Based on Disturbance Observer

作　　者：毕开波[1] 孙剑[2] 隋先辉[1] 

机构地区：[1]海军大连舰艇学院导弹系,辽宁大连116018 [2]西安交通大学航天航空学院,西安710049

出　　处：《海军航空工程学院学报》2016年第1期17-21,100,共6页Journal of Naval Aeronautical and Astronautical University

摘　　要：与地基空间目标监视系统相比,天基观测系统具有监视范围广,不受国界限制,观测精度高等优点,是未来空间目标观测技术的重要发展方向。但天基观测航天器工作时,相机转台的运动,太阳能帆板挠性部件的弹性振动与航天器的姿态运动相互影响,构成强耦合的非线性系统,传统的控制方案无法实现对这类天基观测航天器的高精度姿态控制。文章针对某一空间观测航天器的任务要求,设计了基于干扰观测器的前馈补偿航天器姿态控制系统,仿真实验结果表明:姿态角控制精度小于0.06°,姿态角速度精度小于0.03(°)/s,达到了精度要求。Compared with the target monitoring system of ground space, the advantages of space-based observation system is monitoring range, not limited by national boundaries and higher accuracy of observation, It is an important development direction of future space target observation technology. But when the space-based observing spacecraft work, strongly coupled nonlinear systems because of camera motion, attitude motion and elastic vibration of flexible spacecraft solar panel component interaction. The conventional control method cannot achieve the high precision of this kind of space-based observing spacecraft attitude control. In this paper, aiming at the mission requirements for a space observation spacecraft, the attitude control system of a feed forward compensator based on disturbance observer was designed. Simulation results showed that attitude angle control precision 〈0.06°, attitude angular velocity precision 0.03（°）/s, reached the design accuracy requirements.

关 键 词：天基观测航天器 姿态控制 干扰观测器 

分 类 号：TJ760[兵器科学与技术—武器系统与运用工程]