中文摘要：

磁悬浮单框架控制力矩陀螺（SGCMG）具有大输出力矩、长寿命和只消耗电能等优点，在航天控制领域引起了广泛关注。然而，航天器以及框架转动会使磁悬浮转子产生动框架效应，使输出力矩精度下降，甚至破坏磁悬浮系统稳定性。因此，建立了基于磁悬浮SGCMG的航天器动力学模型，分析了航天器、框架、磁悬浮转子三者之间的相互影响。数值仿真结果表明，框架角速度超调是破坏磁悬浮系统稳定性的主要因素。为避免磁悬浮转子失稳，应对操纵律输出适当限幅，并进一步提高框架伺服系统的性能。

英文摘要：

Magnetically suspended single gimbal control moment gyroscopes have been paid much more attention in the field of space control due to their advantages on large output torque, long life, consuming electric energy only, etc. However, the moving-gimbal effects caused by revolving of craft and gimbal will decrease the output torque precision, even damage the stability of magnetically suspended rotor system. The dynamics model of spacecraft with magnetically suspended SGCMG was set up and the effects between craft body, gimbal and rotor were analyzed. The simulation indicates the overshoot of gimbal angle rate is the main factor to damage the magnetically suspended system, therefore, it is necessary to limit the amplitude of steering law output and enhance the performance of gimble servo system.