论文部分内容阅读
针对控制力矩受限的卫星大角度姿态机动控制问题,设计了一种基于特征模型的低增益反馈控制器.根据原对象动力学模型建立二阶时变差分方程形式的特征模型,通过推导得到了特征模型参数范围。给出了低增益饱和控制方法,并设计低增益反馈控制器,解决了控制输入饱和所带来的性能下降甚至系统不稳定的问题.通过使用特征建模有效地解决了常规控制方法难以使用于一些复杂对象控制的问题.控制受限卫星大角度姿态机动仿真验证了所提出控制方法的有效性.
A low gain feedback controller based on eigenmodel is designed for the control of maneuvering large angular attitude of a satellite with limited control moment. According to the original dynamic model, a eigenmodel of second-order time-varying difference equation is established. Characteristic Model Parameter Range. The low gain and saturation control method is given and the low gain feedback controller is designed to solve the problem of performance degradation caused by saturation of control input or even system instability.Through the use of feature modeling, it can effectively solve the problems that conventional control methods are difficult to use Some complex object control problems. Controlled satellites large-angle attitude maneuver simulation results verify the effectiveness of the proposed control method.