不确定对称组合系统的鲁棒容错反馈设计新方法  

New Robust Fault-Tolerant Feedback Design Method for Uncertain Symmetric Composite Systems

作　　者：张严心[1] 张嗣瀛[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《东北大学学报（自然科学版）》2001年第3期237-240,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金!资助项目 ( 79970 114 )

摘　　要：对不确定对称组合系统 ,提出了一种新的鲁棒容错反馈设计方法·通过求解 2个新的Riccati方程的对称正定解 ,设计出反馈控制器 ,使其不仅对N个子系统中任一个子系统执行器发生故障时具有完整性 ,而且关于参数不确定性具有鲁棒性·该方法易于工程实现 ,示例表明其有效性·与传统容错控制方法相比较 ,所利用的Riccati方程求解范围更广 ,更具灵活性·A new robust fault tolerant design method for uncertain symmetric composite systems was put forward. A feedback controller was designed by solving two lower order Riccati equations. This controller preserves not only the integrity of the overall system while one or more actuators of the subsystem fail, but also the robustness in the presence of parameter perturbations. This method can be realized easily. The validity of the controllers was shown by examples. Compared with the custom fault tolerant control method, the Riccati equations are flexible and the ranges of solution are broad.

关 键 词：对称组合系统 执行器 失效 完整性 鲁棒容错控制 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程] O231[自动化与计算机技术—控制科学与工程]