文章基本信息

标题：Modelling and Nonlinear Model Predictive Control of a Twin Screw Feeder ⁎
本地全文：下载
作者：Davide Bascone ; Federico Galvanin ; Nilay Shah 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2019
卷号：52
期号：18
页码：156-161
DOI：10.1016/j.ifacol.2019.12.223
语种：English
出版社：Elsevier
摘要：In this work, a dynamic model of a twin screw feeder, for continuous tablet manufacturing, has been developed. In particular, a First Order Plus Dead Time (FOPDT) model has been suggested. The delayed dynamics depends on operating conditions, equipment design and physical properties of the bulk solid. Model parameters are estimated by fitting the model to experimental data. Due to the nonlinear input-output relationships and the time delays involved, a Nonlinear Model Predictive Control (NMPC) is investigated to maintain an accurate mass flow rate, with the ultimate goal to improve product homogeneity in an inherently complex process. The performance of the designed control system is found to be satisfactory in a wide operating range and its potential use in a continuous manufacturing process is worth being investigated in the future.
关键词：KeywordsDynamic modellingNonlinear model predictive controlTime-delay systemsScrew feederPharmaceutical