An integrated system of inferential measurement and control of polymer extrusion for self-tuning optimisation and response to disturbances

聚合物挤出推理测量和控制的集成系统，用于自调节优化和干扰响应

• 批准号: EP/F021070/1
• 负责人: Kang Li
• 金额: $ 35.78万
• 依托单位: Queen's University Belfast
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2008
• 资助国家: 英国
• 起止时间: 2008 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FF021070%2F1
• 关键词: integrated; system; inferential; measurement; control

The process of extrusion, whereby polymer granules are melted and conveyed by a screw rotating in a heated barrel, forms the basis of practically all polymer processing operations. In this project an integrated framework for improved performance of extrusion processes will be developed through advances in process modelling, inferential measurement and a more intelligent approach to control of the process. This will require the development of transparent on-line models integrating first-principles' models with analysis of observable on-line data. It will enable inferential measurement of key performance indicators; identification of process faults; on-line optimisation of settings; and an ability to self-tune to changing feed materials and conditions. The end result will be a novel methodology for extrusion control which will provide a comprehensive framework for accurate, efficient and flexible extrusion processing. Such a device would have a major impact on achieving higher product quality and greater potential of recycled feed material while reducing downtime, energy consumption and wastage of valuable polyolefin resources. In order to develop this system, pivotal research is required in a number of areas. These include new theory (development of novel modelling techniques; robust on-line system identification for feed material changes); innovative practical measurements (real time data acquisition and processing of high frequency signals) and innovative data analysis for interpretation of complex data (correlation of data with non-homogenous melting, identification of material degradation, integration in a robust, adaptive control strategy). The development of techniques in this research will also provide an ideal platform for achieving greater success in emerging complex processing applications, for example in reactive extrusion, micro-extrusion and compounding of nanocomposites.

挤出过程，即聚合物颗粒通过在加热桶中旋转的螺钉融化并传达的过程，构成了几乎所有聚合物加工操作的基础。在该项目中，将通过进步过程建模，推论测量和控制过程的更聪明的方法来开发提高挤压过程性能的集成框架。这将需要开发透明的在线模型，该模型通过可观察到的在线数据分析了第一原理的模型。它将实现关键绩效指标的推断测量；识别过程故障；在线优化设置；以及自我调整不断变化的饲料材料和条件的能力。最终结果将是一种新型的挤压控制方法，它将为准确，高效和灵活的挤出处理提供一个综合的框架。这种设备将对获得更高的产品质量和更大的再生进料材料潜力产生重大影响，同时减少停机时间，能源消耗和浪费有价值的聚烯烃资源。为了开发该系统，在许多领域需要关键研究。这些包括新理论（开发新型建模技术；富含饲料材料变化的在线系统识别）；创新的实践测量（实时数据获取和高频信号处理）和用于解释复杂数据的创新数据分析（数据与非基础熔化的相关性，材料降低的识别，在健壮的自适应控制策略中的整合）。这项研究中技术的发展还将为在新兴的复杂处理应用中取得更大的成功提供理想的平台，例如在反应性挤出，微分解和纳米复合材料的复合方面。

项目成果

Extruder melt temperature control with fuzzy logic

• DOI: 10.3182/20110828-6-it-1002.01576
• 发表时间: 2011-01-01
• 期刊: IFAC
• 作者: Abeykoon, C.;Li, K.;Irwin, G.W.
• 通讯作者: Irwin, G.W.

Modelling the Effects of Operating Conditions on Die Melt Temperature Homogeneity in Single Screw Extrusion

• DOI: 10.1049/ic.2010.0254
• 发表时间: 2010-01-01
• 期刊: Proceedings of the UKAC International Conference on Control 2010
• 作者: Abeykoon, Chamil;Kang Li;Kelly, Adrian L.
• 通讯作者: Kelly, Adrian L.

Monitoring and modelling of the effects of process settings and screw geometry on melt pressure generation in polymer extrusion

• DOI: 10.1504/ijscip.2012.050468
• 发表时间: 2012-01-01
• 期刊: Int. J. Syst. Control Inf. Process
• 作者: Abeykoon, C.;Li, K.;Kelly, A.L.
• 通讯作者: Kelly, A.L.

Investigation of the temperature homogeneity of die melt flows in polymer extrusion

聚合物挤出中模头熔体流动的温度均匀性研究

• DOI: 10.1002/pen.23784
• 发表时间: 2013
• 期刊: Polymer Engineering & Science
• 影响因子: 3.2
• 作者: Abeykoon C