CAREER: Studies in the Transition Control of Multi-Product Chemical Reactors

职业：多产物化学反应器的转变控制研究

• 批准号: 9703252
• 负责人: Karlene Hoo
• 金额: $ 25万
• 依托单位: University of South Carolina at Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-08-01 至 1999-10-18
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9703252&HistoricalAwards=false
• 关键词: CAREER; Studies; Transition; Control; Multi

Abstract - Kosanovich - 9703252 The objective this research is the development of a rigorous theoretical framework that can be used to design an effective feedback control strategy for multi-product chemical reactors. The motivation is provided by a global market economy which demands that the manufacture of multiple grades of a single product be made efficiently using the same equipment while simultaneously minimizing the production of off-spec material and maintaining safety and environmental constraints. This project is a fundamental approach to this problem that starts with modeling and analysis of the multiple nature of the operations leading to a framework that permits the design of a hybrid supervisory control strategy. Specifically: (1) local approximation models will be developed to represent the multiple process operations and constraints at each operating point, and (2) a dynamic supervisory controller will be designed to select and to switch into operation, the best controller from a set of possible controllers, that will provide superior setpoint tracking. This research will provide new and fundamental insights into the transition control problem, resulting in a new theoretical framework that combines multi-resolution modeling and robust controller design with analysis of stability and performance of the closed-loop system. The expected results will enhance the education of chemical engineers at the graduate and undergraduate levels. Examples of this include: the development of numerical programs in the form of algorithms to introduce multi-resolution model identification; the inclusion of transition control to the existing process control course; the development of a laboratory experiment to provide active experimentation and concrete experience of the proposed concepts; the collaboration with industry through co-operative externship programs to expose students to multi-product processes; and the use of workshops and thesis projects with industrial students to facilitate technology transfer.

摘要-Kosanovich -9703252目的这项研究是开发严格的理论框架，该框架可用于设计有效的多产品化学反应器反馈控制策略。 全球市场经济提供了动机，该市场经济要求使用相同的设备有效地制造多个单一产品的生产，同时最大程度地减少规格材料的生产并保持安全性和环境限制。 该项目是解决此问题的基本方法，始于对操作的多重性质进行建模和分析，从而允许设计混合监督控制策略的框架。 具体：（1）将开发局部近似模型来表示每个操作点的多个过程操作和约束，并且（2）将设计一个动态的监督控制器，以选择和切换为操作，这是一组可能的控制器的最佳控制器，这将提供出色的设置点跟踪。 这项研究将为过渡控制问题提供新的和基本的见解，从而提供了一个新的理论框架，该框架将多分辨率建模和鲁棒控制器设计与闭环系统的稳定性和性能分析相结合。 预期的结果将增强研究生和本科水平的化学工程师的教育。 其中的示例包括：以算法形式开发数值程序，以引入多分辨率模型识别；将过渡控制纳入现有过程控制课程；开发实验室实验，以提供拟议概念的积极实验和具体的经验；通过合作实习计划与行业合作，使学生接触多产品流程；以及与工业学生使用研讨会和论文项目以促进技术转移。