| 带随机分布时延的网络控制系统预估补偿控制 |
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| 引用本文： | 张亚,田玉平.带随机分布时延的网络控制系统预估补偿控制[J].东南大学学报(自然科学版),2009,39(2). |
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| 作者姓名： | 张亚 田玉平 |
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| 作者单位： | 东南大学自动化学院,南京,210096 |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划)，江苏省自然科学基金，东南大学优秀博士学位论文基金 |
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| 摘 要： | 网络时延的时变特性导致只有某些时刻的对象输出被控制器端接收,回路时延的形式较复杂.采用开关式的状态观测器,基于接收到的输出估计系统状态,建立状态估计误差系统.为讨论切换系统均方稳定的条件,推导了多随机变量序列的Markov特性,进而在Markov跳跃系统的基础上得到了闭环系统均方稳定的充分条件.该条件由状态估计误差系统与时延状态反馈控制系统的均方稳定条件组成,所以控制器和观测器满足分离特性.此外,通过增广状态向量利用系统的Markov切换特性得到了系统均方稳定的充分必要条件.最后用数值实例验证了预估补偿控制策略的有效性.
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| 关 键 词： | 网络控制系统 时延 预估补偿控制 均方稳定 |
Predictor-based compensator of networked control systems with random distributed delays |
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| Zhang Ya,Tian Yuping.Predictor-based compensator of networked control systems with random distributed delays[J].Journal of Southeast University(Natural Science Edition),2009,39(2). |
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| Authors: | Zhang Ya Tian Yuping |
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| Institution: | School of Automation;Southeast University;Nanjing 210096;China |
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| Abstract: | The networked predictive control is studied.Due to time-varying delays,not all of the plant outputs are available for the controller and the form of round-trip delay is complicated.By applying a switching observer,the system states are estimated based on the available outputs and thus the state estimation error system is obtained.To discuss the mean square stability of the switching system,the Markov switching property of multiple random variables is derived.Based on the Markov jump linear system,a sufficie... |
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| Keywords: | networked control system delay predictive control mean square stability |
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