【作者】 祁海铭； 程月华； 姜斌； 马亚杰； 刘成瑞；

【Author】 Qi haiming ,Cheng yuehua ,Jiang bin,Ma yajie,Liu chengrui 1 College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 2100162 Academy of Frontier Science,Nanjing University of Aeronautics and Astronautics,Nanjing 210016 3 Beijing Control Engineering Institute,Beijing 200233,China 4 Beijing Key Laboratory of Space Intelligent Control Technology,Beijing 200233,China

【机构】 南京航空航天大学自动化学院； 南京航空航天大学高新技术研究院； 北京控制工程研究所； 北京市空间智能控制技术重点实验室；

【摘要】 本文研究冗余动量轮系统在部件和功能模块发生单重故障情形下的重构问题,提出采用可重构度来度量系统可重构性,并阐述了可重构度的概念和意义;在定义部件属性矩阵的基础上,结合卫星姿态控制系统状态方程,研究了部件、功能模块属性矩阵与系统可重构度之间的关系,采用基于深度搜索的方法,实现了部件和功能模块发生单重故障情况下的系统可重构度计算;针对冗余动量轮系统开展了可重构特性分析。本文研究的可重构度量指标为系统开展在线重构方案设计和资源优化配置提供了理论依据。更多还原

【Abstract】 This paper provides an approach to evaluate and analyze the reconfignrability of redundant momentums for satellite attitude control systems with single fault.The conception ofreconfigurabilitv degree is discussed and than how to describe the reconfigurabilitv degree is studied.Character of each actuator is described by an attribute vector with several parameters.and then the attribute matrix is built by all attribute vectors.The connection between the attribute matrix and controllability Gramian matrix ofthe a~itude control system is analvzed.Depth—First—Search Algorithm is used to calculate the reconfigurabilitv degree in the presence of single momentum fault.Simulations of several redundant confi~urations are presented to show the reconfigurability analysis result.The proposed approach provides an engineering means to evaluate the reconfigurability and it is also helpful for designing appropriate redundant actuators.更多还原