《机电工程》杂志,月刊( 详细... )
中国标准连续出版物号: ISSN 1001-4551 CN 33-1088/TH
主办单位:浙江省机电集团有限公司
浙江大学
主编:陈 晓
副 主 编:唐任仲、罗向阳(执行主编)
总 经 理:罗向阳
出 版:浙江《机电工程》杂志社有限公司
地 址:杭州市上城区延安路95号浙江省机电集团大楼二楼211、212室
电话Tel:+86-571-87041360、87239525
E-mail:meem_contribute@163.com
国外发行:中国国际图书贸易总公司
订阅:全国各地邮局 国外代号:M3135
国内发行:浙江省报刊发行局
邮发代号:32-68
广告发布登记证:杭上市管广发G-001号
在线杂志 |
当前位置: 机电工程 >>在线杂志 |
基于无线网络状态时延的控制器性能研究
作者:滕永勤,刘锋 日期:2009-06-17/span> 浏览:3209 查看PDF文档
基于无线网络状态时延的控制器性能研究
滕永勤,刘锋
(浙江省环境保护科学设计研究院,浙江 杭州 310007)
摘要:为了研究无线网络控制系统在不同网络负载下时延对系统性能的影响,首先根据无线网络负载状态对网络时延进行分析,给出系统的数学模型,并结合网络负载状态对系统模型作了分析,然后给出了控制器性能指标,利用DLQR(离散线性二次最优设计)方法优化控制器,并就时延对控制性能的影响进行了分析,实现了通过对网络负载状态的调节使系统控制器性能达到最优。最后应用数学模型,通过仿真验证了该研究方法和结果的有效性。
关键词:无线网络;负载状态;时延;性能指标;优化
中图分类号:TP393文献标识码:A文章编号:1001-4551(2009)05-0066-04
Controller performance based on wireless network states time delays
TENG Yongqin, LIU Feng
(Environmental Science Research & Design Institute of Zhejiang Province, Hangzhou 310007, China)
Abstract: Aiming at studying the effect of control systems performance in the present of delays based on the different networkload state in wireless networked control systems. Firstly,based on wireless networkloads state, network delays were analyzed, then a mathematical model with network delays was presented and further analyzed over network loads state. And then, control performance index was proposed, and the controller was optimized by using Discrete Linear Quadratic Regulator(DLQR) methods. Meanwhile, the influence of time deiays for control performance was analyzed. Finally, simulation results show that the mean and the result of the study are valid by a model.
Key words: wireless network; load state; delays; performance index; optimization
参考文献(References):
[1]SELIER P, SENGUPTA R. An H∞ approach networked control [J]. IEEE Transactions on Automatic Control,2003,50(3):356-364.(下转第89页)
(上接第68页)
[2]KAWKA P, ALLEYNE A G. Stability and Feedback Control of Wireless Networked Systems[C] //Proceedings of the 2005 American Control Conference. Portland: [s.n.],2005:2953-2959.
[3]LIU X H, GOLDSMITH A. Wireless Medium Access Control in Networked Control Systems[C]//Proceeding of the 2004 American Control Conference. Boston:[s.n.],2004:3605-3610.
[4]LIU X H, GOLDSMITH A. Wireless Network Design for Distributed Control[C]//43th IEEE Conference on Decision and Control. Atlantis: [s.n.],2004:2823-2829.
[5]COLANDAIRAJ J, SCANLON W ,IRWIN G. Understanding wireless networked control systems through simulation[J]. IEEE Computing & Control Engineering,2005,16(2):26-31.
[6]KAWKA P A. ALLEYNE A G. Stability and Performance of PacketBased Feedback Control over a Markov Channel[C]//Proceedings of the American Control Conference (ACC06). Minneapolis: [s.n.],2006:2807-2812.
[7]NILSSON J, BERNHARDSSON B, WITTENMARK B. Stochastic analysis and control of realtime systems with random time delays[J].Automatica,1998,34(1):57-64.
[8]NISSON J. Realtime control systems with delays[D]. Sweden:Lund Institute of Technology,1998.
[9]代双凤.网络控制系统的Markov建模,设计与分析[D].秦皇岛:燕山大学电气工程学院,2006.
[10]HU S S,ZHU Q X. Stochastic optimal control and analysis of stability of networked control systems with long delays[J]. Automatica,2003(39):1877-1887.
[11]CUI S, XIAO J, GOLDSMITH A, et al. Estimation diversity and energy efficiency in distributed sensing[J]. IEEE Transactions on Signal Processing,2007,55(9):4683-4695.
友情链接