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| H-infinity control for networked control systems （NCS） with time-varying delays | |
| 作者姓名： | Hong ZHAO Min WU Guoping LIU Jinhua SHE |
| 作者单位： | [1]School of Information Science and Engineering, Central South University, Changsha Hunan 410083, China [2]Laboratory of Complex Systems and Intelligence Science, Chinese Academy of Sciences, Beijing 100080, China [3]School of Electronics, University of Glamorgan, Pontypridd CF37 IDL, UK [4]School of Bionics, Tokyo University of Technology, Tokyo 192-0982,Japan |
| 基金项目： | This work was supported in part by the National Natural Science Foundation of China （No.60425310） ,and by the Teaching and Research Award Program for 0utstanding Young Teachers in Higher Education Institutions of the Ministry of Education, P. R. China（TRAP0YT）. |
| 摘 要： | 1Introduction Ina networkedcontrol system(NCS),a communicationnetwork connects sensors,actuators and controllers.AnNCS has many advantages over the point_to_pointcommunication of traditional control systems:fast and easymaintenance,low cost,greater flexibility,etc.Therefore,NCSs are increasingly being usedfor industrial control in avariety of fields1,2].On the other hand,control loopsonthe communication network are closedin an NCS.Thetime delays that occur when information is transmitte… |
| 关 键 词： | H无穷控制 网络控制系统 时滞延迟 状态反馈 线性矩阵不等式 |
| 收稿时间： | 2004-12-30 |
| 修稿时间： | 2005-05-23 |
H-infinity control for networked control systems (NCS) with time-varying delays |
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| Hong ZHAO,Min WU,Guoping LIU,Jinhua SHE.H-infinity control for networked control systems (NCS) with time-varying delays[J].Journal of Control Theory and Applications,2005,3(2):157-162. | |
| Authors: | Hong ZHAO Min WU Guoping LIU Jinhua SHE |
| Affiliation: | 1. School of Information Science and Engineering,Central South University,Changsha Hunan 410083,China 2. Laboratory of Complex Systems and Intelligence Science,Chinese Academy of Sciences,Beijing 100080,China;School of Electronics,University of Glamorgan,Pontypridd CF37 1DL,UK 3. School of Bionics,Tokyo University of Technology,Tokyo 192-0982,Japan |
| Abstract: | This paper discusses H-infinity state feedback control for a networked control system with time-varying delays. Based on the flee-weighing matrix method, a dehy-dependent stability criterion satisfying a prescribed H-infinity norm bound is presented for an NCS with unknown, time-varying and bounded delays. And then, the criterion is transformed into sufficient conditions based on linear matrix inequalities for H-infinity control. The conditions thus obtained are also used to design an H-infinity state feedback controller. This design method is further extended to solve the design problem of robust H-infinity state feedback control. A numerical example demonstrates the validity of the method. |
| Keywords: | H-infinity control Networked cont rol system (NCS) Time-varying delay State feedback Linear matrix inequality (LMI) Robust control |
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