【作者】 罗刚； 张湜； 牛彦杰； 王永华； 李斌；

【Author】 LUO Gang ZHANG Shi NIU Yan-jie WANG Yong-hua LI Bin College of Automation,Nanjing University of Technology,Nanjing 210009,China

【机构】 南京工业大学自动化学院；

【摘要】 针对丁二烯生产装置精馏塔中组分浓度难以控制的问题,提出了基于OPC技术的先进控制方案。在DeltaVDCS控制网络中添加应用站和上位机,应用站作为OPC数据服务器,在上位机用VB编写基于OPC技术的先进控制软件包,实现了数据采集和软测量程序,并把软测量模型的计算结果返回到工程师站,实现物料组分的闭环控制。现场运行结果表明,该方案能够有效地解决精馏塔中组分浓度不能在线测量和直接闭环控制的问题,显著地改善了控制效果。更多还原

【Abstract】 In view of the control problems of the distillation columns in the butadiene plant,the advanced control strategy based on OPC tech- nique is proposed.An application station with OPC data server and an upper level computer are added in DeltaV DCS control net.The ad- vanced control software is designed with VB in the upper level computer,which consisted of data collection and soft-sensing program.The re- sult of soft-sensing program is sent back to professional plus station in order to close-loop control component concentration.Application of the software shows that it can resolve effectively the problems that the component concentration cannot be measured on-line and be close-loop con- trolled directly,and that the effect of control is improved greatly.更多还原