The Macroscopic Theory of Process Control

过程控制的宏观理论

• 批准号: 9316572
• 负责人: Erik Ydstie
• 金额: $ 23.15万
• 依托单位: Carnegie-Mellon University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-01 至 1997-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9316572&HistoricalAwards=false
• 关键词: Macroscopic; Theory; Process; Control

Abstract - Ydstie - 9316572 In systems engineering, computer science and mathematical physics, there is interest in the study of complexity, global system structures and macroscopic analysis. This is a consequence of advances made in the stury of nonlinear dynamic systems. The interest can also be motivated by industrial and societal needs - large systems must be modelled and controlled in the face of a changing environment and significant uncertainty. Interconnections between systems become increasingly complicated and the decision making processes are integrated. The aim of this research is to develop a macroscopic theory for process control. The first law of thermodynamics will be used to develop a reduced complexity description of the process. The second law will provide a mechanism for dissipation, and Lyapunov analysis will be applied to establish sufficient conditions for the existence of stabilizing controls. This theory is valid far from equilibrium and it can be applied to a wide range of unsteady state control problems. A constructive method for control system design will be derived. The method can be used to decide which variables should be measured and manipulated, how nonlinear combinations of measurements can be used and how equipment and equilibrium constraints limit the control system performance. The theory will be applied to two systems. First, the idea of microscopic reversiblity will be used to develop a complete theory for the control of single stage, well mixed processes. Second, this will be generalized to processes with several well mixed stages. u } cs, there is int erest in the study ! ! ! ! F V V R Times Symbol " Helvetica Chicago Tms Rmn " Helv 1 Courier B Script P London P Athens P San Francisco Cairo @ LosAngeles Palatino Mobile & Arial Narrow Book Antiqua Bookman Old Style & Century Gothic 5 Courier New F Monotype Corsiva Monotype Sorts Century Schoolbook Wingdings MT Extra Apple LaserWriter II NT LPT3: pscript Apple LaserWriter II NT U D o d , X Z e * @ @ @ " h \ E \ E O A ydstiabs93 Nichelle T. Coward Nichelle T. Coward

摘要- Ydstie - 9316572 在系统工程、计算机科学和数学物理学中，人们对复杂性、全局系统结构和宏观分析的研究感兴趣。 这是非线性动力系统研究进展的结果。 工业和社会需求也会激发这种兴趣--大型系统必须在不断变化的环境和显著的不确定性面前进行建模和控制。 系统之间的相互联系变得越来越复杂，决策过程也变得越来越复杂。 本研究的目的是发展一个宏观的过程控制理论。 热力学第一定律将被用来开发一个减少复杂性的过程描述。 第二定律将提供一种耗散机制，李雅普诺夫分析将被应用于建立稳定控制存在的充分条件。 这一理论在远离平衡点的情况下是有效的，它可以应用于广泛的非稳态控制问题。 将导出控制系统设计的构造性方法。 该方法可以用来决定哪些变量应该被测量和操纵，如何使用测量的非线性组合，以及设备和平衡约束如何限制控制系统的性能。 该理论将应用于两个系统。 首先，微观可逆性的思想将被用来发展一个完整的理论控制单级，以及混合过程。 其次，这将被推广到具有几个良好混合阶段的过程。 u cs，研究中有兴趣 ! ! ! ! F V V R 倍 Helvetica符号 芝加哥 Tms Rmn“Helv 1密码B Script P伦敦P雅典P旧金山弗朗西斯科 开罗@洛杉矶 Palatino 移动的Arial Narrow 图书古董 Bookman旧风格世纪哥特式5 Crony新F Monotype Corsiva Monotype排序 世纪教科书 Wingdings MT Extra Apple LaserWriter II NT LPT3：pscript Apple LaserWriter II NT U D o d , X Z e * @ @ @ " H \ E \ E O 一 ydstiabs93 尼歇尔·T Coward Nichelle T.懦夫