Optimizing industrial oven temperature uniformity: A model predictive control framework with rapid control prototyping

IF 4.6 2区 计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS
Leandro Pitturelli, Davide Previtali, Fabio Previdi, Antonio Ferramosca
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引用次数: 0

Abstract

Industrial ovens are pivotal in manufacturing, particularly food processing, electronics, and materials fabrication. In this context, temperature control algorithms must satisfy demanding control specifications, among which: setpoint tracking, disturbance rejection, energy saving, and actuator limitations. Specifically, one of the critical challenges in industrial ovens is achieving a uniform temperature distribution within the oven cavity, especially in the presence of disturbances. This paper focuses on a particular kind of industrial ovens installed in shrink tunnels, which are employed in manufacturing applications for polymeric packaging. In these applications, temperature uniformity is a key factor in determining the quality of the packages resulting from the heat shrinking process, making it a major concern. Consequently, we propose three Model Predictive Control (MPC) strategies for shrink tunnels aimed for temperature uniformity: an MPC for tracking (as a baseline), and two zone-based MPCs that steer the oven temperatures towards either a fixed or an adaptive range rather than a single target point. All control strategies are thoroughly and experimentally validated on a shrink tunnel workbench installed in a manufacturing facility. Specifically, we adopt the Rapid Control Prototyping (RCP) paradigm to speed up controller implementation and performance assessment. Experimental results demonstrate that the zone-based MPC strategies significantly improve the temperature uniformity within the oven cavity compared to the MPC for tracking formulation.
优化工业烘箱温度均匀性:一个具有快速控制原型的模型预测控制框架
工业烤箱是制造业的关键,特别是食品加工、电子和材料制造。在这种情况下,温度控制算法必须满足苛刻的控制规范,其中包括:设定值跟踪、抗干扰、节能和执行器限制。具体来说,工业烤箱的关键挑战之一是在烤箱腔内实现均匀的温度分布,特别是在存在干扰的情况下。本文重点介绍了一种安装在收缩隧道中的特殊工业烘箱,该烘箱用于制造聚合物包装。在这些应用中,温度均匀性是决定热收缩过程中产生的封装质量的关键因素,使其成为主要关注点。因此,我们提出了三种针对温度均匀性的收缩隧道的模型预测控制(MPC)策略:用于跟踪的MPC(作为基线)和两个基于区域的MPC,它们将烤箱温度引导到固定或自适应范围,而不是单个目标点。所有的控制策略都在安装在制造工厂的收缩隧道工作台上进行了彻底的实验验证。具体来说,我们采用快速控制原型(RCP)范式来加快控制器的实现和性能评估。实验结果表明,与跟踪配方的MPC相比,基于区域的MPC策略显著改善了烘箱腔内的温度均匀性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Control Engineering Practice
Control Engineering Practice 工程技术-工程:电子与电气
CiteScore
9.20
自引率
12.20%
发文量
183
审稿时长
44 days
期刊介绍: Control Engineering Practice strives to meet the needs of industrial practitioners and industrially related academics and researchers. It publishes papers which illustrate the direct application of control theory and its supporting tools in all possible areas of automation. As a result, the journal only contains papers which can be considered to have made significant contributions to the application of advanced control techniques. It is normally expected that practical results should be included, but where simulation only studies are available, it is necessary to demonstrate that the simulation model is representative of a genuine application. Strictly theoretical papers will find a more appropriate home in Control Engineering Practice''s sister publication, Automatica. It is also expected that papers are innovative with respect to the state of the art and are sufficiently detailed for a reader to be able to duplicate the main results of the paper (supplementary material, including datasets, tables, code and any relevant interactive material can be made available and downloaded from the website). The benefits of the presented methods must be made very clear and the new techniques must be compared and contrasted with results obtained using existing methods. Moreover, a thorough analysis of failures that may happen in the design process and implementation can also be part of the paper. The scope of Control Engineering Practice matches the activities of IFAC. Papers demonstrating the contribution of automation and control in improving the performance, quality, productivity, sustainability, resource and energy efficiency, and the manageability of systems and processes for the benefit of mankind and are relevant to industrial practitioners are most welcome.
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