文章基本信息

标题：IMC based PID Controller Tuning of Series Cascade Unstable Systems
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作者：K. Ghousiya Begum ; T.K. Radhakrishnan ; A. Seshagiri Rao 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2016
卷号：49
期号：1
页码：795-800
DOI：10.1016/j.ifacol.2016.03.154
语种：English
出版社：Elsevier
摘要：AbstractA simple method of tuning series cascade systems for Integrating, Unstable First order plus time delay process is proposed. Here the PID controller is analyzed for series cascade process based on IMC method and H2 minimization. Maclaurin series is used to approximate the controller expression as a PID controller. Improved closed loop performances are achieved with the proposed method when compared to the recently reported methods in the literature. Further, an analysis is carried out based on maximum sensitivity for arriving at systematic guidelines for selection of the closed loop tuning parameter which is essential for unstable systems. The robustness for uncertainty in the model parameters is studied and compared with that of the controllers reported by Lee et al. (2002).
关键词：KeywordsUnstable processIMCH2 minimizationPID controllerCascade processrobustness