| 网络化控制系统随机时延的补偿研究 |
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| 作者姓名： | 葛愿 丛爽 尚伟伟 |
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| 作者单位： | 中国科学技术大学自动化系, 合肥 230027 |
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| 基金项目： | Supported by the National Natural Science Foundation of China (61074050, 61203034, 50905172), and the Youth Talent Fund of Anhui Education Department (2012SQRL086ZD) |
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| 摘 要： | 在网络化控制系统中引入离散隐马尔可夫模型,建立网络状态与控制器-执行器时延之间的概率模型.网络化控制系统被建模成一个马尔可夫跳变线性系统,并预测出当前采样周期内的控制器-执行器时延.使用该预测值设计一个状态反馈控制器,实现对控制器-执行器时延的补偿.对比仿真实验验证了所提方法的优越性.
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| 关 键 词： | 网络化控制系统 离散隐马尔可夫模型 马尔可夫跳变线性系统 状态反馈控制 |
| 收稿时间： | 2012-02-01 |
| 修稿时间： | 2012-04-25 |
Compensation for the stochastic delays in networked control systems |
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| Authors: | GE Yuan CONG Shuang SHANG Wei-Wei |
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| Institution: | Department of Automation, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | The discrete-time hidden Markov model is employed to model the probabilistic relation between the network states and the controller-to-actuator (C-A) delays in networked control systems (NCSs). The NCS is modeled as a Markovian jump linear system and the C-A delay in the current sampling period is predicted. By taking the prediction into account, a state-feedback controller is designed to compensate for the stochastic C-A delays. The superiority of the proposed method is demonstrated by the comparative simulation experiments. |
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| Keywords: | networked control system discrete-time hidden Markov model Markovian jump linear system state-feedback control |
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