一类附件有大角度跟踪机动卫星的动力学建模与控制

采用三刚体七自由度模型来研究带两个大角度跟踪机动附件卫星的动力学与控制问题．通过引入一些新的张量定义，在慢速机动假设下，首先运用Newton-Eular方法导出了该系统的矢量动力学方程，将其转化为标量动力学方程，并讨论了两个附件之间的耦合问题、随后设计出卫星姿态，天线跟踪的PID 前馈控制器，并对控制方法进行了讨论．几组算例表明，该方法控制效果良好．

Dynamical modeling and control of satellite with appendages tracking big angles

Dynamical modeling and control of a satellite with two antennae tracking big angles were studied by an three-rigid-body model with seven degrees. Through defining several new tensors and based on the assumption that the antennae track objects slowly, the vector dynamical equations were derived by Newton-Eular Method,and the corresponding scalar equations were obtained. The coupling effect between the two antennae was discussed. The PID adding forward feedback controller of the satellite attitudes and the antennae tracking were designed, and the control methods were discussed. Several numerical simulations show that the controller is successful.