| 多工况大规模工业过程模型参数估计 |
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| 引用本文： | 蒋鹏飞,顾雪萍,陈曦,邵之江,钱积新. 多工况大规模工业过程模型参数估计[J]. 计算机与应用化学, 2010, 27(1) |
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| 作者姓名： | 蒋鹏飞 顾雪萍 陈曦 邵之江 钱积新 |
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| 作者单位： | 1. 浙江大学控制系,浙江,杭州,310027
2. 浙江大学化工系,浙江,杭州,310027 |
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| 基金项目： | 国家高技术研究发展计划(863)资助项目(2007AA04Z192) |
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| 摘 要： | 在对工业过程进行建模时,模型规模庞大,现场运行工况点较多。构造全联立参数估计模型,模型规模随着工况数的增加成倍扩大,在初值较差的情况下,求解收敛性差。针对此问题,本文提出1种目标序贯式参数估计方法,按照特定规则分批调整目标,逐步添加约束,使得目标分批逼近设定值,最后在新的初值基础上求解联立参数估计优化命题。本文以PTA氧化反应工段模型为例,对其反应动力学常数进行参数估计,结果表明,目标序贯式参数估计收敛性强。
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| 关 键 词： | 大规模 多工况 目标序贯式参数估计 |
Parameter estimation of large-scale industrial process model with multiple operating points |
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| Jiang Pengfei,Gu Xueping,Chen Xi,Shao Zhijiang,Qian Jixin. Parameter estimation of large-scale industrial process model with multiple operating points[J]. Computers and Applied Chemistry, 2010, 27(1) |
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| Authors: | Jiang Pengfei Gu Xueping Chen Xi Shao Zhijiang Qian Jixin |
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| Affiliation: | 1*;1.Department of Control Science & Engineering;Zhejiang University;Hangzhou;310027;Zhejiang;China;2.Department of Chemical Engineering;China |
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| Abstract: | The modeling of a large-scale industrial process with multiple operating points is a complicate task,in which the parameter estimation plays an important role in determining a proper model.For a simultaneous mode parameter estimation,the model size increases with the number of operating points.In the case of a poor initial value,convergence of the large scale parameter estimation could be very poor.In this paper,a target-sequential parameter estimation method is proposed.It sequentially adjusts the target a... |
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| Keywords: | large-scale multiple operating points target-sequential method parameter estimation |
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