虚拟过程控制实验实训平台的开发

摘要

针对过程控制实验实训物理平台的缺陷,以单回路下水箱液位调节阀控制系统为例,介绍了基于虚拟A3000为控制对象的全虚拟实验实训平台的开发过程.用到DDE通讯,实现了组态王与虚拟A3000对象的数据交换,在组态王工程开发中用命令语言实现了增量式PID算法;用到了OPC通讯,完成了组态王和MATLAB的连接,用Simulink模型文件实现了位置式PID算法.为高校师生开发过程控制工程提供了范例,为开展"教、学、做"的一体化课程提供了平台.%Aiming at the defects of physical platform of process control experiment training,taking the control system of water level control valve in single loop as an example,this paper introduces the development process of virtual experiment training platform based on virtual A3000.With DDE communication,the OPC communication and the Kingview and virtual A3000 object data exchange,we achieved the incremental PID algorithm and the connection Kingview an MATLAB.It provides an example for the development of process control engineering and a platform for teaching,learning and doing.