甘蔗煮糖过程开放式综合实验平台研发  

Research on open-architecture integrated experimental platform in sugar boiling process

作　　者：卢福宁[1] 黄学敏[2] 蒙艳玫[2] 郑康元[2] 庞海锋[2] 贺琦[2] 

机构地区：[1]广西大学实验设备处,广西南宁530004 [2]广西大学机械工程学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2014年第3期625-632,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51065004);广西自然科学基金项目(2011GXNSFA018168);南宁市科技攻关项目(20131079)

摘　　要：煮糖是制糖生产最重要的一个环节,煮糖质量的好坏直接影响产品的质量。针对现有煮糖技术和实验设备存在的问题,研究一种用于科学研究和实验教学的甘蔗煮糖过程开放式综合实验平台。实验平台的硬件部分是模块化、可重构的,采用开放式输入输出接口,可以有效模拟实际煮糖生产过程并实时监控各项参数。软件部分是组件式、可扩展的,采用不同的算法和各种控制策略。通过关键工艺参数软测量与优化,实现对煮糖结晶过程控制参数进行自动化监控的目的,并以过饱和度为例阐述了工艺参数软测量监测建模的方法。实验结果表明预测值与实测值的误差较小,平均相对误差为0.859 6%,误差均方差小于0.001,说明所构建的母液过饱和度软测量模型能够较好地从软测量辅助变量数据中估测出母液过饱和度,模型预测准确性高,对改善国内制糖企业煮糖工段自动化水平具有重要意义。The sugar boiling process is the most important procedure affecting the quality of sugar production. Considering the existing problems in boiling technique and test equipment,an open-architecture integrated experimental platform was studied for sugar boiling process. This platform has open input /output interfaces and can simulate the real production of sugar boiling process,based on its modular and reconfigurable hardware. The scalable and component-based software could automatically adjust the control parameters such as temperature and pressure,by using different algorithms and various control strategies and a soft sensor method of supersaturation. Experimental result shows that the average relative error is 0. 859 6% and mean square error is less than 0. 001,demonstrating that the supersaturation can be better estimated from auxiliary variable data of the soft sensor. This method has a high prediction accuracy and is of great significance to improve the automation level of domestic sugar mill.

关 键 词：煮糖结晶过程 开放式 综合实验平台 过饱和度 软测量 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]