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Synchronous Reference Frame current control of Aalborg-type PV inverters

Orfanoudakis, Georgios I, Koutroulis Eftychios, Foteinopoulos Georgios, Wu Weimin

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URIhttp://purl.tuc.gr/dl/dias/E0CAF781-CB5E-4C56-8DF3-E100E79D0377-
Identifierhttps://doi.org/10.23919/EPE21ECCEEurope50061.2021.9570425-
Identifierhttps://ieeexplore.ieee.org/document/9570425-
Languageen-
Extent10 pagesen
TitleSynchronous Reference Frame current control of Aalborg-type PV invertersen
CreatorOrfanoudakis, Georgios Ien
CreatorKoutroulis Eftychiosen
CreatorΚουτρουλης Ευτυχιοςel
CreatorFoteinopoulos Georgiosen
CreatorΦωτεινοπουλος Γεωργιοςel
CreatorWu Weiminen
PublisherInstitute of Electrical and Electronics Engineersen
Content SummaryTransformerless photovoltaic (PV) inverters with voltage step-up capability are currently the preferred interface for integrating PV generation to a single phase of the electric grid. Among the different topologies employed for such inverters, dual-mode time-sharing topologies offer high conversion efficiencies, but present control challenges that can result in significant grid current distortion. Existing control approaches operate in the stationary reference frame and use different controllers for the Buck and Boost modes of operation. This paper presents a new current control approach for Aalborg-type Buck in Buck, Boost in Boost PV inverters, which operates in the Synchronous Reference Frame and uses a common controller for Buck and Boost operation. The proposed method achieves high output current quality even at unfavourable conditions of low PV voltage and/or power levels. Simulation results in MATLAB-Simulink are presented to illustrate that it can reduce the Total Harmonic Distortion (THD) of the grid current by two to three times as compared to the existing alternative.en
Type of ItemΠλήρης Δημοσίευση σε Συνέδριοel
Type of ItemConference Full Paperen
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2023-05-22-
Date of Publication2021-
SubjectDual-mode time-sharing inverteren
SubjectBuck in Buck, Boost in Boost inverteren
SubjectStep-up inverteren
SubjectAalborg inverteren
SubjectTransformerless inverteren
SubjectPV inverteren
SubjectCurrent controlen
Bibliographic CitationG. I. Orfanoudakis, E. Koutroulis, G. Foteinopoulos and W. Wu, "Synchronous Reference Frame current control of Aalborg-type PV inverters," presented at the 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe), Ghent, Belgium, 2021, doi: 10.23919/EPE21ECCEEurope50061.2021.9570425.en

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