基于动态调度的网络控制系统设计方法

王艳, 纪志成, 谢林柏, 胡维礼

王艳, 纪志成, 谢林柏, 胡维礼. 基于动态调度的网络控制系统设计方法[J]. 信息与控制, 2008, 37(1): 73-80,86.
引用本文: 王艳, 纪志成, 谢林柏, 胡维礼. 基于动态调度的网络控制系统设计方法[J]. 信息与控制, 2008, 37(1): 73-80,86.
WANG Yan, JI Zhi-cheng, XIE Lin-bo, HU Wei-li. A Dynamic-Scheduling-Based Design Approach for Networked Control Systems[J]. INFORMATION AND CONTROL, 2008, 37(1): 73-80,86.
Citation: WANG Yan, JI Zhi-cheng, XIE Lin-bo, HU Wei-li. A Dynamic-Scheduling-Based Design Approach for Networked Control Systems[J]. INFORMATION AND CONTROL, 2008, 37(1): 73-80,86.

基于动态调度的网络控制系统设计方法

详细信息
    作者简介:

    王艳(1978- ),女,博士,副教授.研究领域为网络控制系统,模糊控制.
    纪志成(1959- ),男,博士,教授.研究领域为运动控制,非线性控制,电气传动.

  • 中图分类号: TP273

A Dynamic-Scheduling-Based Design Approach for Networked Control Systems

  • 摘要: 针对网络控制系统中存在多回路共享网络资源的问题,本文提出一种基于反馈和预测机理的动态调度策略,根据当前的网络状态在线调整控制系统的采样周期,以适应当前网络中信息流的变化,达到改善网络运行性能的目的.采用动态调度策略的网络控制系统为不确定变采样周期系统,经过等效变换,将系统等效为一类具有参数不确定性的离散系统.基于建立的模型,给出系统的鲁棒控制器参数化设计方法,并通过仿真实例验证了所提方法的有效性.
    Abstract: Based on the feedback and prediction mechanism,a dynamic scheduling strategy is proposed for the problem that multiple loops share network resources in networked control systems(NCSs).In order to improve the network operational performance and to adapt the network traffic variations,sampling periods of the control systems are adjusted on-line according to the current network status.The NCS with such a dynamic scheduling strategy is a system with variable sampling periods and uncertainty.By equivalent transformation,the system can be equivalent to a class of discrete systems with parametrical uncertainties.Based on the established model,a parametric design method of robust controller is given,and the effectiveness of the method is validated with a simulation example.
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出版历程
  • 收稿日期:  2007-03-19
  • 发布日期:  2008-02-19

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