文章基本信息

标题：A Riccati-Based Interior Point Method for Efficient Model Predictive Control of SISO Systems
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作者：Morten Hagdrup ; Rolf Johansson ; John Bagterp Jørgensen 等
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：10672-10678
DOI：10.1016/j.ifacol.2017.08.2184
语种：English
出版社：Elsevier
摘要：AbstractThis paper presents an algorithm for Model Predictive Control of SISO systems. Based on a quadratic objective in addition to (hard) input constraints it features soft upper as well as lower constraints on the output and an input rate-of-change penalty term. It keeps the deterministic and stochastic model parts separate. The controller is designed based on the deterministic model, while the Kalman filter results from the stochastic part. The controller is implemented as a primal-dual interior point (IP) method using Riccati recursion and the computational savings possible for SISO systems. In particular the computational complexity scales linearly with the control horizon. No warm-start strategies are considered. Numerical examples are included illustrating applications to Artificial Pancreas technology. We provide typical execution times for a single iteration of the IP algorithm and the number of iterations required for convergence in different situations.
关键词：KeywordsPredictive controlconstrained optimizationquadratic programminginterior point methodsRiccati iterationclosed-loop controllinear systemsArtificial Pancreas