带双轴太阳帆板驱动器的卫星建模与姿态控制

摘要

The attitude dynamic model of the satellite with dual axis solar array drive actuator was established with dual axis solar array drive mechanism. Feedback control law of satellite attitude maneuver and solar array rotation was designed by combining the feedback linearization approach with PD control. The simulation was achieved for the synchronized and continuous maneuver strategy of the rigid body and solar arrays. The Matlab simulation result of the roll maneuver control, pitch and yaw stabilization control is presented to validate the proposed control law. The result demonstrates that dual axis solar array mechanism works well in the flexible vibration suppression and attitude stability precision.%针对具有双轴太阳帆板驱动器的卫星,建立了卫星动力学模型.应用反馈线性化原理结合经典PD控制方法设计了卫星姿态机动和太阳帆板旋转的非线性反馈控制律,并采用卫星本体与太阳帆板分步连续机动的策略进行仿真.Matlab软件对卫星滚转通道的姿态机动控制和俯仰通道与偏航通道的姿态稳定控制的数学仿真说明了所提出控制律的有效性.结果表明太阳帆板双轴驱动器有效抑制了帆板挠性振动,有利于提高卫星姿态角和角速度的稳定性.