CAJ | 학술논문

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0.8596%,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。
자당시제당생산최중요적일개배절,자당질량적호배직접영향산품적질량。침대현유자당기술화실험설비존재적문제,연구일충용우과학연구화실험교학적감자자당과정개방식종합실험평태。실험평태적경건부분시모괴화、가중구적,채용개방식수입수출접구,가이유효모의실제자당생산과정병실시감공각항삼수。연건부분시조건식、가확전적,채용불동적산법화각충공제책략。통과관건공예삼수연측량여우화,실현대자당결정과정공제삼수진행자동화감공적목적,병이과포화도위례천술료공예삼수연측량감측건모적방법。실험결과표명예측치여실측치적오차교소,평균상대오차위0.8596%,오차균방차소우0.001,설명소구건적모액과포화도연측량모형능구교호지종연측량보조변량수거중고측출모액과포화도,모형예측준학성고,대개선국내제당기업자당공단자동화수평구유중요의의。
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-ar-chitecture 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 automat-ically 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.