非线性系统的主动容错控制  

Active Fault Tolerant Control of Nonlinear Systems

作　　者：姚利娜[1] 薛霄[2] 任景莉[1] 

机构地区：[1]郑州大学电气工程学院,河南郑州450001 [2]河南理工大学,河南焦作454000

出　　处：《计算机仿真》2009年第6期168-170,174,共4页Computer Simulation

基　　金：国家自然科学基金(60504037);河南省教育厅自然科学基金(2008A470011)

摘　　要：对一般的非线性系统提出了一种新的主动容错控制方法。系统正常工作时,采用基于迭代学习观测器的输出反馈控制策略,控制器为迭代学习观测器的状态和调节参数的函数,此输出反馈控制器能良好地镇定该非线性系统。当系统发生故障后,进行控制器重组,在调节参数的自适应调节律中引入了故障估计的信息,使得系统发生故障后包含故障估计信息的重组控制器仍然能使系统稳定,实现了非线性系统的主动容错控制。计算机模拟显示所提出算法的有效性。A new active fault tolerant control method has been proposed for a common nonlinear system. When the system works normally, the output feedback strategy is introduced using an iterative learning observer, in which the controller is the function of states of the iterative learning observer and the tuning parameter. The controller can stabilize this nonlinear system and would be reconfigured after fault happened. The information of the fault estimation would be introduced into the adaptive tuning rule of the tuning parameter to guarantee the stability of the post - fault system using the reconfiguration controller, leading to the fault tolerant control of the nonlinear systems. Computer simulation results illustrate the validity of the method.

关 键 词：非线性系统 迭代学习观测器 自适应调节 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]