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固定床反应器基于RBF网络的推断控制 被引量:1

INFERENTIAL CONTROL OF A FIXED BED REACTOR USING RBF NETWORK
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摘要 一些研究者基于简化机理模型,讨论了固定床反应器的推断控制。然而,工业过程中有许多固定床反应器的机理模型尚难以建立,而且由于固定床反应器特性的复杂性,模型简化和状态估计器的设计等具有较大的困难。因此,基于“黑箱”模型研究固定床反应器的推断控制可能是一条十分有效的途径。Budman等人提出用部分最小二乘法(PLS)以改进回归模型的性能。他们对实验室固定床反应器,假设沿反应器轴向的十点温度可以测量,并据此建立回归模型,然而由于固定床反应器具有严重非线性和时变等特性,用PLS法建立估计器仍有局限性。另外,实际的固定床反应器可能只有少数几个温度可以测量。因此其面向应用的推断控制策略的研究有十分重要的意义。 In this paper, a new inlereiitial control strategy based on RBF network for a non adiabalie tubular fixed -bed reactor is presented. An on-line self learning inferential estimator based on RHF network is developed, and then a predictive control system with output of the estim nor as feedback variable is designed. It is shown via simulation, where a phthalic anhydride reactor is taken as a research plant, thai the estimator has the performance of on line self - learning ability and good accuracy. Moreover, the performance of the control system is satisfactory.
出处 《化工学报》 EI CAS CSCD 北大核心 1995年第5期631-634,共4页 CIESC Journal
基金 国家自然科学基金
关键词 固定床反应器 RBF网络 推断控制 预测控制 fixed - bed reactor, KBF network, inferential control predictive control
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参考文献3

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同被引文献12

  • 1吴鹏,李绍芬,廖晖.固定床反应器进行n级反应的飞温判据[J].高校化学工程学报,1995,9(2):162-167. 被引量:4
  • 2AN Na(安娜).[D].Beijing(北京):University ofChemical Technology(北京化工大学),2003.
  • 3马晓敏 周忙来.Nonlinear dynamic system identification based on the neural networks(基于神经网络的非线性动态系统辨识)[A]..Control Conference Dissertation of China(中国控制会议论文集)[C].Hunan(湖南):Hunan Press(湖南出版社),1995.708—712.
  • 4潘立登 马俊英.System Modeling and Software Sensors Technique(系统模型化与软测量技术)[Z]..Beijing University of Chemical Technology Printed Teaching Materials(北京化工大学讲义)[C].,2000..
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  • 10WU Hui-xiong, ZHANG Shu-zeng, LI Cheng-yue. Study of unsteady-state catalytic oxidation of sulfur dioxide by periodic flow reversal[J]. The Canadian Journal of Chemical Engineering, 1996, 74 (10): 766-771.

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