| 一类具有随机时延的网络化控制系统的广义预测控制 |
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| 引用本文： | 傅磊,戴冠中.一类具有随机时延的网络化控制系统的广义预测控制[J].测控技术,2007,26(9):29-32. |
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| 作者姓名： | 傅磊 戴冠中 |
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| 作者单位： | 西北工业大学,自动化学院,陕西,西安,710072 |
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| 摘 要： | 网络化控制系统中,各种恒定、时变或者随机的网络时延会导致系统控制性能的下降甚至不稳定。针对基于交换式以太网所造成的随机网络时延问题,结合对系统结构及时延特征的分析,给出了一种基于广义预测控制的控制方法,该方法采用网络时间戳机制和模型的在线辨识,能够准确地测量系统输出并及时对预测值进行在线修正,实现对随机时延的网络化控制系统的有效控制。最后通过仿真验证了该方法的有效性。
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| 关 键 词： | 网络化控制系统 交换式以太网 网络时延 时间戳 广义预测控制 |
Generalized Predictive Control Method for Networked Control System with Random Time Delay |
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| FU Lei,DAI Guan-zhong.Generalized Predictive Control Method for Networked Control System with Random Time Delay[J].Measurement & Control Technology,2007,26(9):29-32. |
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| Authors: | FU Lei DAI Guan-zhong |
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| Abstract: | Various constant or time-varying,and even random network time delays can usually deteriorate the control performance and stability of networked control systems.According to the analysis of the system structure and random time delay induced by switched Ethernet,a control strategy based on generalized predictive control is proposed for networked control systems.The time-stamping mechanism of data and online identification method of model are applied to the presented strategy.Accurate measurement to the system output and timely modification of the predictive value are both ensured.Finally,the validity of control strategy is confirmed by the simulation. |
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| Keywords: | networked control system switched Ethernet network time delay time stamping generalized predictive control |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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