工业控制器的比较:在一个正在运行的工业浮选过程中的干扰抑制

IF 3.3 2区 计算机科学 Q2 AUTOMATION & CONTROL SYSTEMS
Frida Norlund , Kristian Soltesz , Margret Bauer
{"title":"工业控制器的比较:在一个正在运行的工业浮选过程中的干扰抑制","authors":"Frida Norlund ,&nbsp;Kristian Soltesz ,&nbsp;Margret Bauer","doi":"10.1016/j.jprocont.2025.103478","DOIUrl":null,"url":null,"abstract":"<div><div>Linear quadratic (LQ) control optimizes a quadratic cost function while following a linear model. It is commercially available in the process industry but often not labeled as such and infrequently used. Froth flotation is a process in the minerals industry that extracts precious metals from a slurry of finely ground rock in consecutive tanks called cells. Flotation cells are often arranged in two parallel streams and the main control task is to regulate the cell levels. In this work, a commercial solution is used to assess the performance of LQ control and compare it to existing PI/PID controllers. Comparing control solutions in the process industry in general and the minerals industry in particular is fraught with difficulty because operating conditions change frequently, especially when studying the capability to reject disturbances. In the flotation process studied here, the disturbances act on two parallel lines, one controlled by an LQ algorithm and the other with the existing PI/PID controllers. This work develops data assessment strategies to isolate events of interest and analyses them both with classical metrics such as integrated absolute error, and with metrics relevant for the operators, such as maximum level deviations. Both these metrics clearly show that the LQ controller performs significantly and consistently better than the PI/PID controllers.</div></div>","PeriodicalId":50079,"journal":{"name":"Journal of Process Control","volume":"152 ","pages":"Article 103478"},"PeriodicalIF":3.3000,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparison of industrial controllers: Disturbance rejection in an up-and-running industrial flotation process\",\"authors\":\"Frida Norlund ,&nbsp;Kristian Soltesz ,&nbsp;Margret Bauer\",\"doi\":\"10.1016/j.jprocont.2025.103478\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Linear quadratic (LQ) control optimizes a quadratic cost function while following a linear model. It is commercially available in the process industry but often not labeled as such and infrequently used. Froth flotation is a process in the minerals industry that extracts precious metals from a slurry of finely ground rock in consecutive tanks called cells. Flotation cells are often arranged in two parallel streams and the main control task is to regulate the cell levels. In this work, a commercial solution is used to assess the performance of LQ control and compare it to existing PI/PID controllers. Comparing control solutions in the process industry in general and the minerals industry in particular is fraught with difficulty because operating conditions change frequently, especially when studying the capability to reject disturbances. In the flotation process studied here, the disturbances act on two parallel lines, one controlled by an LQ algorithm and the other with the existing PI/PID controllers. This work develops data assessment strategies to isolate events of interest and analyses them both with classical metrics such as integrated absolute error, and with metrics relevant for the operators, such as maximum level deviations. Both these metrics clearly show that the LQ controller performs significantly and consistently better than the PI/PID controllers.</div></div>\",\"PeriodicalId\":50079,\"journal\":{\"name\":\"Journal of Process Control\",\"volume\":\"152 \",\"pages\":\"Article 103478\"},\"PeriodicalIF\":3.3000,\"publicationDate\":\"2025-07-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Process Control\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0959152425001064\",\"RegionNum\":2,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"AUTOMATION & CONTROL SYSTEMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Process Control","FirstCategoryId":"94","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0959152425001064","RegionNum":2,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"AUTOMATION & CONTROL SYSTEMS","Score":null,"Total":0}
引用次数: 0

摘要

线性二次元(LQ)控制在遵循线性模型的同时优化二次元成本函数。它在加工工业中是商业上可用的,但通常没有这样的标签,也不经常使用。泡沫浮选是矿物工业中的一种工艺,从一种磨细的岩石浆液中提取贵金属,这种浆液在连续的容器中被称为细胞。浮选池通常布置在两个平行流中,主要控制任务是调节浮选池的液位。在这项工作中,使用商业解决方案来评估LQ控制的性能,并将其与现有的PI/PID控制器进行比较。由于操作条件经常变化,特别是在研究抵抗干扰的能力时,比较过程工业中的一般控制方案和矿物工业中的控制方案充满了困难。在本文研究的浮选过程中,扰动作用于两条平行线上,一条由LQ算法控制,另一条由已有的PI/PID控制器控制。这项工作开发了数据评估策略,以隔离感兴趣的事件,并使用经典指标(如综合绝对误差)和与操作员相关的指标(如最大水平偏差)进行分析。这两个指标都清楚地表明,LQ控制器的性能明显优于PI/PID控制器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Comparison of industrial controllers: Disturbance rejection in an up-and-running industrial flotation process

Comparison of industrial controllers: Disturbance rejection in an up-and-running industrial flotation process
Linear quadratic (LQ) control optimizes a quadratic cost function while following a linear model. It is commercially available in the process industry but often not labeled as such and infrequently used. Froth flotation is a process in the minerals industry that extracts precious metals from a slurry of finely ground rock in consecutive tanks called cells. Flotation cells are often arranged in two parallel streams and the main control task is to regulate the cell levels. In this work, a commercial solution is used to assess the performance of LQ control and compare it to existing PI/PID controllers. Comparing control solutions in the process industry in general and the minerals industry in particular is fraught with difficulty because operating conditions change frequently, especially when studying the capability to reject disturbances. In the flotation process studied here, the disturbances act on two parallel lines, one controlled by an LQ algorithm and the other with the existing PI/PID controllers. This work develops data assessment strategies to isolate events of interest and analyses them both with classical metrics such as integrated absolute error, and with metrics relevant for the operators, such as maximum level deviations. Both these metrics clearly show that the LQ controller performs significantly and consistently better than the PI/PID controllers.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Process Control
Journal of Process Control 工程技术-工程:化工
CiteScore
7.00
自引率
11.90%
发文量
159
审稿时长
74 days
期刊介绍: This international journal covers the application of control theory, operations research, computer science and engineering principles to the solution of process control problems. In addition to the traditional chemical processing and manufacturing applications, the scope of process control problems involves a wide range of applications that includes energy processes, nano-technology, systems biology, bio-medical engineering, pharmaceutical processing technology, energy storage and conversion, smart grid, and data analytics among others. Papers on the theory in these areas will also be accepted provided the theoretical contribution is aimed at the application and the development of process control techniques. Topics covered include: • Control applications• Process monitoring• Plant-wide control• Process control systems• Control techniques and algorithms• Process modelling and simulation• Design methods Advanced design methods exclude well established and widely studied traditional design techniques such as PID tuning and its many variants. Applications in fields such as control of automotive engines, machinery and robotics are not deemed suitable unless a clear motivation for the relevance to process control is provided.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信