【摘要】 针对低成本微小卫星的姿态控制问题,采用无飞轮设计,研究了在仅有磁力矩器作为控制执行器情况下的纯磁控算法。对多种微小卫星姿态控制算法进行了对比研究,提出一种新的适合工程应用的纯磁控算法。该算法能够在微小卫星较短工程寿命中,充分利用磁力矩器的最大控制力矩提高姿态的稳定控制效率。结合实测数据并加入重力梯度力矩等干扰对其进行仿真验证。结果表明,该算法可以满足在较短时间内卫星姿态的三轴稳定,具有控制精度高、重量轻、体积小、能耗低、易于工程化等优点,适用于低成本微小卫星。更多还原

【Abstract】 This paper is mainly focused on the research of magnetic attitude control algorithms for low-cost micro-satellites with only magnetic torque as the executor and no flywheel. First of all,a comparison is made to different attitude control algorithms for micro-satellites,then a new magnetic-only attitude control algorithm adaptive for engineering application is proposed. The new algorithm can improve the efficiency of satellite attitude control in its limited life cycle. At last,simulation is made based on the measured data and by introducing such disturbances as gravity gradient torque. The result indicates that the new algorithm can satisfy three-axis attitude stabilization of the satellite in short time,and has the advantages of high precisionlight weight,small volume,low energy consumption,and easy for engineering application,which make it applicable for low-cost micro-satellites.更多还原