王杭州++袁志宏++邱彤++趙勁松++陳丙珍

摘 要：研究復(fù)雜化工過程系統(tǒng)的動(dòng)態(tài)行為特性內(nèi)在規(guī)律及其調(diào)控理論和方法是進(jìn)行化工過程物質(zhì)與能量高效利用的集成優(yōu)化的前提條件。對(duì)于復(fù)雜的化工系統(tǒng)，操作條件與過程結(jié)果的輸入輸出多重性、穩(wěn)定性和可控性是其重要的行為特征，良好的系統(tǒng)行為特征是過程高效能/質(zhì)轉(zhuǎn)換的重要保障。該研究以烯烴制備、聚烯烴合成等工業(yè)過程為對(duì)象，重點(diǎn)研究復(fù)雜過程系統(tǒng)的穩(wěn)定性和可控性條件，即對(duì)如何確保所設(shè)計(jì)的復(fù)雜化工過程在不確定因素?cái)_動(dòng)下仍能維持穩(wěn)定操作的關(guān)鍵科學(xué)問題（如輸入輸出多重性、穩(wěn)定性以及可控性等）進(jìn)行綜合研究，擬應(yīng)用分岔理論和奇異值理論揭示這些化工過程非線性特征與過程流程的拓?fù)浣Y(jié)構(gòu)以及參數(shù)（設(shè)計(jì)、操作）之間的內(nèi)在聯(lián)系的規(guī)律，確定具有良好系統(tǒng)行為特征的過程流程拓?fù)浣Y(jié)構(gòu)以及操作區(qū)域，從而使得所設(shè)計(jì)的過程在本質(zhì)上具有維持穩(wěn)定運(yùn)行的系統(tǒng)特性，從源頭上降低不穩(wěn)定生產(chǎn)的概率或避免事故的發(fā)生，為能/質(zhì)高效轉(zhuǎn)化提供保障。

關(guān)鍵詞：多穩(wěn)態(tài) 動(dòng)態(tài)特性 穩(wěn)定性 拓?fù)浣Y(jié)構(gòu) 多目標(biāo)優(yōu)化

Project Proposal for Nonlinear Behaviors Analaysis and Control of Complex Process System

Wang Hangzhou Yuan Zhihong Qiu Tong Zhao Jinsong Chen Bingzhen

（Tsinghua University）

Abstract：For complex chemical processes， detailed study of system dynamic behavior （system dynamics）， including it intrinsic pattern and control theory， serves as significant prerequisites for integrated optimization aiming at highly efficient mass and energy utilization. As the essential characteristics of complicated chemical systems， the input/output multiplicity， stability and controllability will simultaneously determine the level of efficient mass and energy conversion and utilization. This work mainly focuses on the stability and controllability condition for complex process systems. Herein， olefin preparation manufacturing and polyolefin production processes were selected as the major processes to investigate. The scientific problem lies in how to guarantee and maintain stable operation of the designed chemical process even under uncertain disturbances. Bifurcation analysis and singularity theory were introduced to elucidate the inherent relationships existing among process nonlinearity， flow-sheet topology， and design/operating parameters. Identification of optimum topological structure and operating region that are able to intrinsically maintain stable operation will significantly contribute to inherently safer process design， which eliminates/minimizes potential hazards at the source root level and laid a solid foundationthe cornerstone for highly efficient mass and energy utilization.

Key Words：Multi-steady state； Dynamic behavior； Tability； Topological structure； Multi-object optimization