摘要
基于建立的卫星姿态动力学模型,对高精度遥感卫星有效载荷工作时载荷运动产生的干扰力矩及其对卫星姿态的影响进行了研究。提出了反馈控制+力矩补偿的方法,给出了力矩补偿的设计。仿真结果表明:在补偿时延小、补偿精度高条件下利用补偿轮进行力矩补偿,可提高卫星的姿态稳定度,使其满足卫星成像时的姿态控制指标要求。
Based on the attitude dynamic model of the satellite established,the disturbance torque caused by the movements of the felixble components of the payloads in the high-accuracy remote sensing satellite and its influence on the attitude of the satellite were studied in this paper.The method of the feedback control plus torque companstation was put forward,and a torque compensation method was designed.The simulation results showed that the attitude stability of the satellite could be improved by the torque compensation of the compensation wheels when the compensation time-delay was short and compensation accuracy was high,which would meet the requirements of the attitude control for the target of imaging.
出处
《上海航天》
2011年第1期12-17,60,共7页
Aerospace Shanghai
关键词
三轴稳定卫星
干扰力矩
姿态稳定
力矩补偿
Three-axis stabilized satellite
Disturbance torque
Attitude stability
Torque compensation
