文章基本信息

标题：Enthalpy control for the feed water supply in a once-through boiler with disturbance estimation
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作者：Christoph Josef Backi
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：1991-1996
DOI：10.1016/j.ifacol.2017.08.175
语种：English
出版社：Elsevier
摘要：AbstractIn this article, a nonlinear modeling approach to describe the enthalpy dynamics between the inlet of the economizer and the outlet of the evaporator inside a once-through boiler is presented. Furthermore, a combined control and estimation approach based on an LQG controller consisting of an LQ regulator and an Extended Kalman Filter (EKF) is introduced. The EKF is thereby extended by a state in order to estimate the supplied heat, which constitutes a disturbance to the process. This can be due to fouling or varying heat values of the fuel during operation.
关键词：KeywordsOnce-through boilerpower plant controlLQGKalman Filterdisturbance observer