| 随机延迟网络中的时戳预测函数控制 |
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| 引用本文： | 张奇智,张卫东.随机延迟网络中的时戳预测函数控制[J].东南大学学报,2005,21(2):149-152. |
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| 作者姓名： | 张奇智 张卫东 |
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| 作者单位： | 上海交通大学自动化系，上海200030 |
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| 基金项目： | 国家自然科学基金，the Science and Technology Rising-Star Program of Shanghai |
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| 摘 要： | 针对网络控制系统中的随机延迟会恶化控制品质,甚至使系统变得不稳定这一问题,把标准预测函数控制算法推广到带随机延迟的网络控制系统中,提出了时戳预测函数控制算法.该算法通过时戳方法来估计网络在控制系统中引入的总延迟,根据系统离散的延迟状态空间模型来预测未来输出,并由预测函数控制的思想得到了适用于网络控制系统的控制规律.在基于TrueTime工具箱搭建的网络控制系统仿真平台上,对比了时戳预测函数算法和传统预测函数算法,系统响应曲线显示前者具有更好的控制品质.
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| 关 键 词： | 网络控制系统 随机延迟 预测函数控制 工业以太网 |
Time-stamped predictive functional control for networked control systems with random delays |
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| Zhang Qizhi,Zhang Weidong.Time-stamped predictive functional control for networked control systems with random delays[J].Journal of Southeast University(English Edition),2005,21(2):149-152. |
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| Authors: | Zhang Qizhi Zhang Weidong |
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| Abstract: | The random delays in a networked control system (NCS) degrade control performance and can even destabilize the control system.To deal with this problem,the time-stamped predictive functional control (PFC) algorithm is proposed,which generalizes the standard PFC algorithm to networked control systems with random delays.The algorithm uses the time-stamp method to estimate the control delay,predicts the future outputs based on a discrete time delay state space model,and drives the control law that applies to an NCS from the idea of a PFC algorithm.A networked control system was constructed based on TrueTime simulator,with which the time-stamped PFC algorithm was compared with the standard PFC algorithm.The response curves show that the proposed algorithm has better control performance. |
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| Keywords: | networked control systems random delays predictive functional control industrial Ethernet |
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