论文部分内容阅读
对星载磁悬浮单框架控制力矩陀螺,建立其转子的平动与转动的动力学方程。所建模型反映了转子的动、静不平衡特性,以及转子运动与框架、星体运动的耦合关系。模型是主动磁悬浮控制与动框架效应分析的基础。对动、静不平衡量未知的转子,设计了自适应对中控制器。在分散PD、比例交叉反馈控制器与高低通滤波器的基础上,通过动、静不平衡量的辨识与补偿控制,使转子绕其惯量主轴旋转,衰减角动量交换执行机构高速转子因不平衡而对基座产生的干扰力,消除星上主要颤振源,达到降低卫星姿态抖动的目的。
For the controllable moment gyroscope of a space-borne single-frame magnetic bearing, the dynamic equations of translation and rotation of the rotor are established. The model reflects the rotor’s dynamic and static imbalance characteristics as well as the coupling between the rotor’s motion and the frame and the star’s motion. The model is the basis of active maglev control and dynamic frame effect analysis. For the rotor with unknown dynamic and static unbalance, an adaptive centering controller is designed. Based on decentralized PD, proportional cross-feedback controller and high-low-pass filter, the rotor is rotated around the spindle of its inertia by the identification and compensation control of dynamic and static unbalance, and the high-speed rotor of the decaying angular momentum exchange actuator is unbalanced Interfere with the base, eliminate the main chattering source on the satellite and reduce the jitter of the satellite.