基于DCS控制技术的造纸定量监测系统设计和实现  

Design and Implementation of Papermaking Quantitative Monitoring System Based on DCS Control Technology

作　　者：苏春莉[1] 温荣斌[2] SU Chunli;WEN Rongbin(School of Information Engineering Xi’an Eurasian University,Xi’an 710065,China;Xi’an Thermal Power Research Institute Co.,Ltd,Xi’an 710061,China)

机构地区：[1]西安欧亚学院信息工程学院,陕西西安710065 [2]西安热工研究院有限公司,陕西西安710061

出　　处：《造纸科学与技术》2024年第6期43-45,59,共4页Paper Science And Technology

基　　金：2023年度陕西省教育厅一般专项课题(23JK0577)。

摘　　要：为实现对制浆造纸定量环节的自动化监测,提高造纸企业的自动化管理水平,基于抄纸工艺的一般流程和PID控制技术制订了一项水分定量解耦控制策略,并通过对角阵解耦法明确纸张定量控制策略的基本思路。在此基础上,基于纸机车速、上浆流量和上浆浓度3项指标来实现对纸张生产的定量管理,通过带有初始化功能的PSO算法对PID控制器进行参数整定。为实现上述算法的实地应用,基于SIMATIC S7-200 SMART可编程控制器建立了一套造纸定量监测DCS控制系统,并通过WinCC项目中的OPC驱动程序输入PID参数,最后运用Simulink完成数据交换。为验证该系统的有效性,在某造纸企业的造纸定量工序中随机提取了250个扫描点并输出相应的定量偏差曲线。经实际测量发现,该系统控制下的纸张定量波动处于±1g/m2的可接受范围内,实现了较为精准的定量检测。In order to realize the automatic monitoring of the quantitative link of papermaking pulp and improve the automatic management level of papermaking enterprises,a quantitative decoupling control strategy of moisture is established based on the general process of papermaking process and PID control technology,and the basic idea of paper quantitative control strategy is established through the decoupling method.On this basis,the quantitative management of paper production was realized based on the three indicators of paper machine speed,sizing flow rate and sizing concentration,and the parameters of the PID controller were tuned by the PSO algorithm with initialization function.In order to realize the field application of the above algorithms,a set of papermaking quantitative monitoring DCS control system was established based on SIMATIC S7-200 SMART programmable controller,and the PID parameters were input through the OPC driver in the WinCC project,and finally the data exchange was completed by Simulink.In order to verify the effectiveness of the system,250 scan points were randomly extracted from the papermaking quantitative process of a papermaking company and the corresponding quantitative deviation curves were output.After actual measurement,it is found that the quantitative fluctuation of paper under the control of the system is within the acceptable range of±1 g/m2,and a relatively accurate quantitative detection is realized.

关 键 词：控制 可编程控制器 定量监测 系统设计 

分 类 号：TS73[轻工技术与工程—制浆造纸工程]