广义非线性系统的可靠H∞输出跟踪控制  

Tracking control of the reliable H_∞ output in nonlinear descriptor systems

作　　者：张爱清[1] 方华京[1] 

机构地区：[1]华中科技大学控制科学与工程系

出　　处：《华中科技大学学报（自然科学版）》2008年第4期65-67,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(60574088,60274014)

摘　　要：针对一类广义非线性系统的可靠H∞输出跟踪控制问题,应用Tagaki-Sugeno(T-S)模糊控制方法,在执行器发生故障的情况下设计可靠控制器,使系统输出能跟踪参考信号,且跟踪误差系统渐近稳定并满足给定的H∞跟踪性能.基于线性矩阵不等式方法,给出了广义非线性系统实现H∞输出跟踪的充分条件,以及可靠控制器的设计.仿真结果表明了所设计的控制器在执行器正常或发生故障时的有效性.A Tagaki-Sugeno （T-S） fuzzy model approach is presented for tracking control of the reliable H∞ output tracking control in a class of nonlinear descriptor system. When the actuator failures cases occurred, a reliable controller is designed such that the system output follow that of a reference model while satisfying a prescribed H∞ performance constraint. Based on linear matrix inequality （LMI） method,sufficient condition and reliable controller design method are proposed to achieve the output tracking purpose. Illustrative example is given to show the effectiveness of the reliable controller when actuator is in the normal case or faulty case.

关 键 词：广义系统 输出跟踪 T-S模糊模型 线性矩阵不等式 

分 类 号：TP273.4[自动化与计算机技术—检测技术与自动化装置]