文章基本信息

标题：Tuning and performance assessment of complex fractional-order PI controllers
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作者：Mehdi Ghasem Moghadam ; Fabrizio Padula ; Lorenzo Ntogramatzidis 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2018
卷号：51
期号：4
页码：757-762
DOI：10.1016/j.ifacol.2018.06.205
语种：English
出版社：Elsevier
摘要：AbstractIn this paper, we propose an optimization-based tuning methodology for real and complex Fractional-Order Proportional-Integral (FOPI) controllers. The proposed approach hinges on a modified version of the Integral Absolute Error (IAE) sensitivity-constrained optimization problem, which is suitably adapted to the design of fractional controllers. As such, it allows the exploitation of the potentiality of the (possibly complex) fractional integrator. We also propose a method, based on the well-known CRONE approximation, which delivers a band-limited real-rational approximation of the real part of the complex-order integrator. Finally, based on a First-Order-Plus-Dead-Time (FOPDT) model of the process, we use our design and approximation techniques to find an optimal tuning for real, complex fractional-order, and integer PI controllers and we provide a quantitative performance assessment.
关键词：KeywordsFractional controlcomplex fractional-orderPI controltuningoptimization.