文章基本信息

标题：Optimization of olive-oil extraction using nonlinear H-infinity control
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作者：Gerasimos Rigatos ; Pierluigi Siano ; Patrice Wira 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：32
页码：439-444
DOI：10.1016/j.ifacol.2018.11.424
语种：English
出版社：Elsevier
摘要：AbstractOlive-oil extraction is a process carried out by thousands of small industrial units in the Mediterranean countries (olive-oil mills), often in an empirical manner and using heuristic parametrization. The article proposes a new nonlinear H-infinity control approach for optimizing olive-oil extraction. The state-space model of the olive-oil extraction process is formulated after taking into account time-delays between the control inputs and its outputs. This state-space model undergoes approximate linearization around a temporary operating point which is re-computed at each step of the control method. The linearization is based on Taylor series expansion and on the computation of the model’s Jacobian matrices. For the approximately linearized description of the olive-oil extraction system an optimal (H-infinity) feedback controller is designed. The computation of the controller’s feedback gain requires the solution of an algebraic Riccati equation which also takes place at each iteration of the control method. The stability properties of the H-infinity control scheme are proven through Lyapunov analysis.
关键词：Keywordsolive-oil extractionolive-oil mills controlnonlinear H-infinity controlapproximate linearizationLyapunov functionasymptotic stability