三轴稳定遥感卫星姿控系统故障情况下的系统重构

论述三轴对地稳定遥感卫星姿控系统中部分轮子或部分陀螺故障情况下的姿控系统重构。文中论述了只在俯仰通道有一偏置动量轮正常工作，而滚动和偏航通道轮子故障条件下的系统重构。另外还论述了偏航陀螺故障，姿控系统其它部件正常情况下，控制系统采用Whecon原理与PIM控制相结合的设计。以上两种系统重构拟用于实际系统中，经过数学仿真验证，姿控系统在故障情况下能够完成基本任务。

Attitude Control System Reconfiguration in Case of Failures of a Three Axis Stabilized Remote Sensing Satellite

In this paper, the attitude control system reconfiguration for a thre axis stabilized remote sensing satellite is discussSed in case of failure of parts of wheels or yaw channel gyros in the control system. when pitch channel wheel is normal and the rest wheels are in failure,the control concept is the normal wheel control in bigger bias momentum state for the pitch channel and the magnetic control for the roll - yaw channel. When the yaw channel gyros are in failure and the rest components are normal, the whecon and the PIM control method are combined into the design of the control system. the design is evaluated by the actual attitude control system. The computer simulation results have demonstrated that the control system based on the design can basically accomplish the control tasks in case of failures.