| 逐次二次规划法求解化工流程优化问题的研究 |
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| 引用本文： | 陈丙珍,何小荣,沈静珠.逐次二次规划法求解化工流程优化问题的研究[J].清华大学学报(自然科学版),1988(3). |
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| 作者姓名： | 陈丙珍 何小荣 沈静珠 |
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| 作者单位： | 化学工程系
(陈丙珍，何小荣)，化学工程系(沈静珠) |
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| 摘 要： | 以逐次二次规划（ＳＱＰ）为核心所开发的化工流程优化方法虽已取得不少进展，但 还存在两个方面的问题：原问题中相容的非线性约束在化为二次规划的线性约束时会出 现不相容的情况；未知变量的标度系数难以确定。为了提高ＳＱＰ的有效性及可靠性， 本文对它作了进一步的探讨，并提出了解决方法。通过对一个闪蒸系统实例的计算分 析．证实了提出的改进算法是较为有效的。
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| 关 键 词： | 优化 非线性规划 逐次二次规划 化工 |
A Study and Some Improvements to Chemical Process Optimization Algorithms Based on the Successive Quadratic Programming |
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| Chen Bingzhen, He Xiaorong, Shen Jingzhu.A Study and Some Improvements to Chemical Process Optimization Algorithms Based on the Successive Quadratic Programming[J].Journal of Tsinghua University(Science and Technology),1988(3). |
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| Authors: | Chen Bingzhen He Xiaorong Shen Jingzhu |
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| Institution: | Department of Chemical Engineering |
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| Abstract: | Up to now, the chemical process optimization algorithms, developed on the basis of the successive quadratic programming (SQP), has got a great progress. However, there still remain two questions: the SQP algorithm can sometimes be plagued with inconsistent constraint linearizations; the scaling factors of unknown variables are difficult to be defined. With the aim of increasing the reliability and efficiency of algorithins for process flowsheet optimization, in this paper a new strategy is proposed to deal with the inconsistent case and an effective scaling procedure is developed, which were tested on a flash system optimization problem. The results show significant improvements in performance as predicted from theory. |
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| Keywords: | optimization nonlinear programming successive quadratic programming method chemical engineering |
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