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Stability and Time Delay Tolerance Analysis Approach for Networked Control Systems

机译：网络控制系统的稳定性和时延公差分析方法

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摘要

Networked control system is a research area where the theory is behind practice. Closing the feedback loop through shared network induces time delay and some of the data could be lost. So the network induced time delay and data loss are inevitable in networked control Systems. The time delay may degrade the performance of control systems or even worse lead to system instability. Once the structure of a networked control system is confirmed, it is essential to identify the maximum time delay allowed for maintaining the system stability which, in turn, is also associated with the process of controller design. Some studies reported methods for estimating the maximum time delay allowed for maintaining system stability; however, most of the reported methods are normally overcomplicated for practical applications. A method based on the finite difference approximation is proposed in this paper for estimating the maximum time delay tolerance, which has a simple structure and is easy to apply.
机译：网络控制系统是理论落后于实践的研究领域。通过共享网络关闭反馈环路会导致时间延迟，并且某些数据可能会丢失。因此，在网络控制系统中，网络引起的时延和数据丢失是不可避免的。时间延迟可能会降低控制系统的性能，甚至导致系统不稳定。一旦确定了网络控制系统的结构，就必须确定允许维持系统稳定性的最大时延，这又与控制器设计过程有关。一些研究报告了估算维持系统稳定性所允许的最大时延的方法。然而，大多数报道的方法通常在实际应用中过于复杂。提出了一种基于有限差分近似的最大时延容忍度估计方法，该方法结构简单，易于实现。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第12期|812070.1-812070.9|共9页
  • 作者

    Khalil Ashraf F.; Wang Jihong;

  • 作者单位

    Univ Benghazi, Dept Elect & Elect Engn, Benghazi, Libya.;

    Univ Warwick, Sch Engn, Coventry CV4 7AL, W Midlands, England.;

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