【摘要】 为了提高偏置动量卫星姿态控制精度,针对三轴稳定偏置动量卫星滚动/偏航回路周期干扰力矩补偿问题,提出了一种基于反作用飞轮的滚动/偏航回路周期干扰力矩补偿方案。采用频率分离法,分析了周期干扰力矩对卫星滚动/偏航回路姿态控制精度的影响。设计了周期干扰力矩的飞轮补偿方案,该干扰力矩补偿方案由安装在卫星滚动/偏航轴上的反作用飞轮实现。仿真结果表明,所设计的飞轮补偿方案提高了滚动/偏航轴的控制精度,从而验证了飞轮补偿方案的可行性和有效性。更多还原

【Abstract】 Disturbance compensation problem of a three-axis stabilized momentum biased satellite is investigated.In order to improve pointing accuracy of momentum biased satellite,a compensation scheme of periodic disturbance torques is proposed for the roll/yaw loop of momentum biased satellite based on reaction wheels.Pointing accuracy affected by periodic disturbance torques of the roll/yaw loop is obtained by frequency separation method.A wheel compensation scheme is designed and implemented by reaction wheels that are equipped along the roll/yaw axes.The numerical simulation results show that pointing accuracy of roll axis and yaw axis is improved by the wheel compensation scheme,and the feasibility and validity of wheel compensation scheme is verified.更多还原