基于以太网的闭环网络控制系统设计

Design of Closed Loop Network Control System Based on Ethernet

概述了以太网用于工业现场的必要性。介绍了基于以太网的闭环网络控制系统的系统模型。在系统中设计了观测器和预估器以解决不确定变化的网络延时问题,保持了系统的稳定性并改善了系统的动态特性。仿真研究表明了该方法的有效性。

The necessities of the Ethernet application for industrial field were summarized in this paper. An Ethernet based on closed loop system model was introduced. An observer and an estimator were designed to release the effect caused by transport delay existing in the network control system. The introduction of the observer and the estimator keep the system stable and has a fine performance. A simulation was given to demonstrate the effectiveness of the design method.