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dc.contributor.authorMarcillo, Kevin Eduardo Lucas-
dc.contributor.authorGuingla, Douglas Antonio Plaza-
dc.contributor.authorMedeiros, Renan Laudau Paiva de-
dc.contributor.authorBeavides, David Alejandro Vaca-
dc.contributor.authorNogueira, Fabrício Gonzalez-
dc.identifier.citationMARCILLO, K. E. L. et al. Interval robust controller to minimize oscillations effects caused by constant power load in a DC multi-converter Buck-Buck system. IEEE Access, v. 7, p. 26324 - 26342, 2019.pt_BR
dc.identifier.issn2169 - 3536-
dc.description.abstractMulti-converter electronic systems are becoming widely used in many industrial applications; therefore, the stability of the whole system is a big concern to the real-world power supplies applications. A multi-converter system comprised of cascaded converters has a basic con guration that consists of two or more converters in series connection, where the rst is a source converter that maintains a regulated dc voltage on the intermediate bus while remaining are load converters that convert the intermediate bus voltage to the tightly regulated outputs for the next system stage or load. Instability in cascaded systems may occur due to the constant power load (CPL), which is a behavior of the tightly regulated converters. CPLs exhibit incremental negative resistance behavior causing a high risk of instability in interconnected converters. In addition, there are other problems apart from the CPL, e.g., non-linearities due to the inductive element and uncertainties due to the imprecision of a mathematical model of dc dc converters. Aiming to effectively mitigate oscillations effects in the output of source converter loaded with a CPL, in this paper, an interval robust controller, by linear programming based on Kharitonov rectangle, is proposed to regulate the output of source converter. Several tests were developed by using an experimental plant and simulation models when the multi-converter buck buck system is subjected to a variation of power reference. Both simulation and experimental results show the effectiveness of the proposed controller. Furthermore, the performance indices computed from the experimental data show that the proposed controller outperforms a classical control technique.pt_BR
dc.publisherIEEE Accesspt_BR
dc.subjectEngenharia elétricapt_BR
dc.subjectCorrentes elétricaspt_BR
dc.subjectConversores de frequênciapt_BR
dc.subjectRobust control based on Kharitonov rectanglept_BR
dc.subjectMitigation oscillations in multi-converter buck-buck systempt_BR
dc.subjectConstant power loadpt_BR
dc.subjectMulti-converter buck-buck systempt_BR
dc.subjectParametric uncertaintiespt_BR
dc.titleInterval robust controller to minimize oscillations effects caused by constant power load in a DC multi-converter Buck-Buck systempt_BR
dc.typeArtigo de Periódicopt_BR
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