基于广域网的网络化控制系统半实物仿真平台建模与实现  

Modeling and Implementation of Hardware-in-the-loop Simulation Platform for Networked Control Systems Based on WAN

作　　者：杜玉昊 刘大千[1] 

机构地区：[1]北方工业大学电气与控制工程学院,北京100144

出　　处：《工业控制计算机》2018年第9期8-10,共3页Industrial Control Computer

摘　　要：建立了一个基于广域网的网络化控制系统仿真模型,在此基础上实现了一个可扩展的半实物仿真平台。该平台能够有效整合数字仿真系统和物理系统,可以灵活调整和配置网络模型,可以实时采集物理系统数据。该平台用OPNET搭建广域网模型来模拟用户上网行为和背景流量,把OPC客户端嵌入到OPNET仿真环境中构成OPC半实物仿真代理节点来提取实时过程数据,用可选择的控制器完成控制算法运算。在该平台下对广域网中的控制节点实施分布式拒绝服务(DDo S)攻击,仿真结果表明在DDo S攻击达到一定流量时,会对系统稳定性产生影响,进而证明了仿真平台的实用性。In this paper,a simulation model for networked control systems based on WAN is proposed and an extensible hardware-in-the-loop simulation platform is implemented.The platform can effectively integrate the numerical simulation systems and the physical systems,flexibly configure the network model,and collect the physical systems data in real time.OPNET is used to build WAN models which simulate the user＇s online behavior and background traffic.An OPC client is embedded into the OPNET simulation environment to compose an OPC hardware-in-the-loop simulation agent node which is a data channel between WAN models and physical systems.An optional controller is used to run the control algorithm.

关 键 词：半实物仿真 网络化控制系统 OPC OPNET 广域网 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]