网络化牵引控制系统H_∞采样控制及其应用  

H_∞ sampled-data control of networked traction control system and its application

作　　者：陈刚[1,2] 王信 罗昌胜[1,2] 肖伸平 CHEN Gang;WANG Xin;LUO Changsheng;XIAO Shenping(School of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China;Key Laboratory for Electric Drive Control and Intelligent of Hunan Province,Zhuzhou 412007,China)

机构地区：[1]湖南工业大学电气与信息工程学院,湖南株洲412007 [2]电传动控制与智能装备湖南省重点实验室,湖南株洲412007

出　　处：《中南大学学报（自然科学版）》2019年第1期91-99,共9页Journal of Central South University:Science and Technology

基　　金：湖南省自然科学基金资助项目(2018JJ4075);国家自然科学基金资助项目(61672225;61304064)~~

摘　　要：基于Lyapunov-Krasovskii稳定性定理,采用采样控制方法,研究具有时滞的网络化牵引控制系统H∞控制问题。利用闭环泛函方法,构造新的包含更多采样点信息的Lyapunov-Krasovskii泛函,从而获得具有更小保守性的稳定性判据。随后,将此判据拓展到含有外部输入以及参数不确定的网络化牵引控制系统中,并给出H∞采样控制器求解方法。实例仿真结果表明:所得H∞控制器能使牵引电机模型状态趋于稳定,说明该求解方法有效的。Based on the Lyapunov-Krasovskii stability theorem,the H∞control problem of networked traction control system with time delay was studied by sampled-data control approach.By constructing new Lyapunov-Krasovskii functional with loop-functional approach which contains more information of sampling points.A less conservative stability criterion was obtained.Then,the criterion was extended to the network control system with external inputs and uncertain parameter,and the H∞sampling controller was derived.Finally,in simulink examples,the obtained controller can make the states of networked traction control system stable,which proves that the method is feasible.

关 键 词：LYAPUNOV-KRASOVSKII泛函 网络化牵引控制系统 H∞采样控制器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]