利用均方稳定方法对网络控制系统的分析及优化

Analysis and optimization of network control system by mean square stabilizing method

网络控制系统(NCS)具有成本低、创建和维护比较简易、灵活性强、系统故障诊断方便等优点,近几年被广泛应用于设备制造、工业自动化以及航空航天等领域。在以上所提到的诸多领域中,利用网络控制系统保持网络的稳定性非常重要,但是在实际应用时网络的使用过程中不可避免地带来了时滞、数据丢包、数据包时序错乱等问题,这些可能出现的情况使得NCS的分析和设计非常复杂。研究了NCS的模型建立、稳定性分析以及控制器设计问题。通过仿真实验对所得到的理论结果的可行性和有效性进行了验证。

Network control system is widely used in equipment manufacture, industrial automation, aerospace and other fields because of its advantages of low cost, easy creation, convenient maintenance, high flexibility and easy fault diagnosis. It is very important to utilize the network control system （NCS） to keep the network stability in the above mentioned areas, but time delay, data packet loss and packet timing disorder will be caused inevitably in the practical application of network. These may make the analysis and design of NCS complex. The modeling, stability analysis and controller design of NCS are re-searched in this paper. The feasibility and effectiveness of the theoretical results were verified by simulation experiment.