Autonomous Control Reconfiguration of Aerospace Vehicle Based on Control Effectiveness Estimation  

基于控制效益估计的空天飞行器自主控制重构(英文)

作　　者：池沛[1] 陈宗基[1] 周锐[1] 魏晨[1] 

机构地区：[1]北京航空航天大学自动化学院

出　　处：《Chinese Journal of Aeronautics》2007年第5期443-451,共9页中国航空学报（英文版）

基　　金：National Natural Science Foundation of China (90205011, 60674103)

摘　　要：Future aerospace vehicles （ASV） are designed to fly in both inner and extra atmospheric fields, which requires autonomous adaptability to the uncertainties emanated from abrupt faults and continuously time-varying environments. An autonomous control reconfiguration scheme is presented for ASV to deal with the uncertainties on the base of control effectiveness estimation. The on-line estimation methods for the time-varying control effectiveness of linear control system are investigated. Some sufficient conditions for the estimable system are given for different cases. There are proposed corresponding on-line estimation algorithms which are proved to be convergent and robust to noise using the least-square-based methods. On the ground of fuzzy logic and linear programming, the control allocation algorithms, which are able to implement the autonomous control reconfiguration through the redundant actuators, are put forward. Finally, an integrated system is developed to verify the scheme and algorithms by way of numerical simulation and analysis.Future aerospace vehicles （ASV） are designed to fly in both inner and extra atmospheric fields, which requires autonomous adaptability to the uncertainties emanated from abrupt faults and continuously time-varying environments. An autonomous control reconfiguration scheme is presented for ASV to deal with the uncertainties on the base of control effectiveness estimation. The on-line estimation methods for the time-varying control effectiveness of linear control system are investigated. Some sufficient conditions for the estimable system are given for different cases. There are proposed corresponding on-line estimation algorithms which are proved to be convergent and robust to noise using the least-square-based methods. On the ground of fuzzy logic and linear programming, the control allocation algorithms, which are able to implement the autonomous control reconfiguration through the redundant actuators, are put forward. Finally, an integrated system is developed to verify the scheme and algorithms by way of numerical simulation and analysis.

关 键 词：aerospace vehicle autonomous control reconfiguration control effectiveness control allocation linear programming 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]