中国科技核心期刊

中文核心期刊

CSCD来源期刊

空间控制技术与应用 ›› 2014, Vol. 40 ›› Issue (4): 26-30.

• 学术研究 • 上一篇    下一篇

航天器空间自主交会故障诊断

  

  • 出版日期:2014-08-20 发布日期:2014-08-20

Fault Diagnosis for the Spacecraft Autonomous Rendezvous

  • Online:2014-08-20 Published:2014-08-20

摘要:  研究了空间自主交会中最终逼近段轨道控制的故障诊断问题.采用CW方程描述圆轨道上的目标航天器与追踪航天器的相对运动关系,首先针对CW方程设计了基于开环模型的未知输入鲁棒故障观测器,然后针对空间自主交会的闭环控制问题,设计了基于线性矩阵不等式(LMI)的H∞控制器.在有干扰条件下,进行鲁棒控制和PD控制两种控制器的自主交会对比仿真,仿真结果表明设计的控制器可以完成自主交会任务,但故障诊断器在不同的控制器下诊断的效果并不一样,最后进行了总结并探讨了这一阶段新的研究方向.

关键词: 自主交会, 故障诊断, 鲁棒控制, 线性矩阵不等式

Abstract: The problem of fault diagnosis is concerned with respect to the final phase of the satellite autonomous rendezvous. An unknown input observer is designed based on the open-loop system of the C-W equation, and a H∞ controller is designed based on linear matrix inequality (LMI) for the rendezvous. The simulations are implemented under the robust controller and a PD controller with the presence of disturbance. The results show that the robust controller can realize the autonomous rendezvous well, but the observer represents distinctly under different controllers. Finally, conclusions are drawn and a new research topic for rendezvous is proposed.

Key words: rendezvous, fault diagnosis, robust control, linear matrix inequality

中图分类号: 

  • V448