论文部分内容阅读
提出了一种航天器圆轨道自主交会故障诊断与容错控制的集成设计方法。在考虑推力器输出约束的情况下,完成了故障诊断与容错控制的集成设计,该集成设计包括鲁棒容错控制器设计和鲁棒故障观测器设计两大部分。为了提高交会过程中的过渡性能,对该控制器完成了鲁棒D稳定性分析。仿真表明该设计具有良好的动态性能和对推力器故障的容错性,并且能够快速准确地诊断出推力器和交会敏感器的故障。
An integrated design method for fault diagnosis and fault-tolerant control of the spacecraft circular orbit autonomous intersection is proposed. Considering thruster output constraint, the integrated design of fault diagnosis and fault-tolerant control is completed. The integrated design includes two parts: robust fault-tolerant controller design and robust fault observer design. In order to improve the transition performance during rendezvous, a robust D-stability analysis of the controller was completed. Simulation shows that the design has good dynamic performance and fault tolerance of thrusters, and can quickly and accurately diagnose the failure of thrusters and rendezvous sensors.