具有网络丢包和时延的网络控制系统设计  

Design of networked controller for systems with packet dropout and networked-induced delays

作　　者：陈青[1,2] 吴敏[1] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083 [2]湖南工业大学计算机与通信学院,湖南株洲412008

出　　处：《控制与决策》2011年第2期293-296,共4页Control and Decision

基　　金：国家杰出青年科学基金项目(60425310)

摘　　要：为了降低对于网络传输的要求,针对具有固定时延和随机丢包情况的网络系统,采用状态增广以克服时延对网络控制系统分析的影响,进而考虑随机丢包情况,将增广系统转化为切换系统.以此为基础,提出网络鲁棒控制器设计方法.该控制器仅仅基于被控对象的反馈状态,因此对于网络传输的要求较低.最后,通过一个仿真算例验证了该系统的有效性.In order to reduce the communication burden of networks,for systems with fixed networked-induced delays and random data packets dropout,the system is augmented to eliminate the effect caused by networked-induced delays.Then the augmented system is converted into a switched system to include the data packets dropout.Based on the switched system model,the design method of networked robust controller is proposed,which only adopts the feedback system state of original system and can reduce the communication request.Finally,a simulation example shows the effectiveness of the results.

关 键 词：网络控制系统 网络丢包 切换系统 鲁棒 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]