Dynamic optimization of conditional models with application to chemical process operation and design

条件模型的动态优化及其在化学工艺操作和设计中的应用

• 批准号: 239111-2006
• 负责人: Swartz, Christopher
• 金额: $ 2.01万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2006
• 资助国家: 加拿大
• 起止时间: 2006-01-01 至 2007-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=331596
• 关键词: Dynamic; optimization; conditional; models; application

Conditional models may be defined as those in which the system equations depend on where the model solution lies.  In a dynamic setting, the system could operate in different modes, with the transition between modes triggered by discrete events.  Examples of chemical process systems that exhibit behavior of this type are commonplace, and include vessels that could overflow or run dry, appearance or disappearance of a phase in a multiphase system, and actuator saturation.  Discontinuous behavior may also be induced by control systems such as logic-based supervisory controllers.  This research proposal addresses the optimization of conditional dynamic models, focusing primarily on situations in which the model discontinuities are induced by control systems.  Applications to be considered include regulatory and supervisory control system design, optimization of systems in transition, and optimal design of dynamically operable plants.  The broad goals of this research are to develop effective formulation and solution strategies for such problems, characterize the convergence properties for specific problem classes, and develop novel applications of industrial relevance.  Dynamic optimization of conditional models has only recently received attention within the process systems community.  It is hoped that through this research, reliable and efficient techniques will be developed for the solution of such problems in novel design and control applications of industrial significance.

条件模型可以定义为系统方程取决于模型解所在位置的模型。在动态设置中，系统可以在不同模式下运行，模式之间的转换由离散事件触发。表现出这种类型行为的化学过程系统的例子很常见，包括可能溢出或干涸的容器，多相系统中相的出现或消失以及执行器饱和。控制系统（例如基于逻辑的监督控制器）也可能引起不连续行为。该研究提案解决了条件动态模型的优化问题，主要集中在由控制系统引起的模型不连续性的情况。要考虑的应用包括调节和监督控制系统设计，过渡系统的优化，和动态可操作工厂的优化设计。本研究的广泛目标是为此类问题开发有效的公式和解决策略，表征特定问题类的收敛特性，并开发工业相关的新应用。条件模型的动态优化只是最近才在过程系统社区内受到关注。希望通过这项研究，将开发可靠和有效的技术，用于解决具有工业意义的新颖设计和控制应用中的这些问题。