具有执行器故障的保成本可靠控制  

Guaranteed Cost Reliable Control with Actuator Failures

作　　者：王福忠[1] 姚波[2] 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 [2]沈阳师范大学数学与系统科学学院,辽宁沈阳110034

出　　处：《东北大学学报（自然科学版）》2003年第7期616-619,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(79970114);辽宁省教育厅基金资助项目(202263357).

摘　　要：针对线性定常系统,在涉及不确定性的保成本问题基础上,提出了带有执行器故障扰动的保成本可靠控制问题·给出了更实际、更一般的故障模型·在考虑执行器故障模型的基础上,给出了系统渐近稳定及可靠保成本的充分条件·通过求解代数Ricatti方程完成动态反馈控制器的设计·并且进一步说明当系统无故障时,系统渐近稳定且具有良好的保成本指标·当系统的执行器发生故障时,系统仍保持渐近稳定且满足一定的保成本指标·仿真实例验证了本文结果的有效性·The reliable design of guaranteed cost for linear systems with actuator failures was concerned. A practical and general model of actuator failures was given. On the basis of considered influence of actuator failures, a sufficient condition of asymptotic stability with guaranteed cost control was presented. A dynamic feedback controller was designed by applying algebra Ricatti equation. Furthermore, when the actuators failures do not occur, the system is asymptotic stability and the performance index is good, when the actuator failures occur, the system is still asymptotic stability. A simulation example is given to illustrate the effectiveness of the result.

关 键 词：执行器故障 保成本可靠控制 成本函数 动态输出反馈 Ricatti方程 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]