The Design of Robust Controller for Networked Control System with Time Delay

The Design of Robust Controller for Networked Control System with Time Delay
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时滞网络控制系统鲁棒控制器设计

DOI:
10.1155/2015/189013
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发表时间:
2015-06
影响因子:
--
通讯作者:
Xu Fengxia
Xu Fengxia
中科院分区:
工程技术4区
文献类型:
--
作者:
Lu Zhongda;Wang Lijing;Zhang Fengbin;Xu Fengxia

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研究了具有时滞的网络控制系统的稳定性与控制问题。同时考虑到网络时延、未知输入扰动、系统建模的不确定性等因素的影响,建立了时延网络控制系统的精确闭环模型。通过选取合适的Lyapunov-Krasovskii函数,利用李雅普诺夫定理,以线性矩阵不等式的形式给出了系统稳定的充分条件,得到了相应的控制器参数,并证明了控制算法的收敛性。仿真实例表明,时滞网络鲁棒控制系统的构造确实提高了系统的稳定性能,表明了设计的有效性。
This paper considers the stability and control problem of networked control systems with time delay. Taking into account the influence of network with delay, unknown input disturbance, and uncertainties of the system modeling, meanwhile we establish a precise, closed-loop model for networked control systems with time delay. By selecting a proper Lyapunov-Krasovskii function and using Lyapunov theorem, a sufficient condition for stability of the system in the form of LMI is demonstrated, corresponding controller parameters are acquired, and the convergence of the control algorithm is proved. The simulation example shows that the construction of the network robust control system with time delay indeed improves the stability performance of the system, which indicates the effectiveness of the design.
DOI: --
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