摘要
针对偏置动量卫星偏航滚转回路的姿态控制问题,考虑外干扰力矩及转动惯量参数不确定性的影响,采用基于干扰观测器的方法设计了鲁棒控制器。同时,为降低挠性帆板振动对姿态控制系统的影响,使用LQR方法设计了主动振动抑制控制律。通过数字仿真结果表明,提出的控制器能有效的估计出卫星所受的外干扰并对其进行补偿,可显著的提高姿态控制精度,方法的有效性得到了验证。
For the presence of external disturbances and uncertainties of moment of inertia in a biased momentum satellite, the robust roll and yaw controllers based on disturbance observer, are presented in this paper. Then, the LQR method is used to design the control law for suppressing the vibration of the flexible solar array. Finally, numerical simulations show that the proposed method can estimate and attenuate the external disturbances for improving the performance of the attitude control and the effectiveness of the method is validated.
出处
《现代电子技术》
2013年第3期125-129,共5页
Modern Electronics Technique
基金
哈尔滨市优秀学科带头人基金项目(2012RFXXG029)
关键词
偏置动量卫星
姿态控制
振动抑制
干扰观测器
biased momentum satellite
attitude control
vibration suppression
disturbance observer
