Design and control of an LCL-type single-phase grid-connected inverter with inverter current feedback using the phase-delay method

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dc.authorid
dc.contributor.authorEvran, Fatih
dc.date.accessioned2021-12-01T18:23:46Z
dc.date.available2021-12-01T18:23:46Z
dc.date.issued2019
dc.departmentDÜ, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.description.abstractIn this study, a novel single-phase grid-connected microinverter system and its control applications areintroduced for solar energy systems. The proposed system consists of two stages to transfer solar power to the grid. Inthe first stage, an isolated high-gain DC/DC converter is used to increase low solar panel output voltage. In the secondstage, an inverter is used to supply a sinusoidal current to the grid. Moreover, a proportional resonant controller isadopted to reduce grid current total harmonic distortions (THDs) and an LCL filter is used to provide better harmonicattenuation. However, the ratio between the sampling frequency fs and the resonance frequency fres should be greaterthan 6 in the LCL filter with the inverter current feedback for a stable system. In order to obtain higher phase margins,the sampling frequency should be increased, which increases the inverter switching frequency. The present study showsthat fs/fres can be lower than 6 by placing a phase delay on the inverter current feedback path to guarantee adequatestability margins. The effectiveness and feasibility of the proposed method are confirmed by the experimental test resultsbased on a 300-W laboratory prototype.en_US
dc.identifier.doi10.3906/elk-1709-141
dc.identifier.endpage4714en_US
dc.identifier.issn1300-0632
dc.identifier.issn1300-0632
dc.identifier.issue6en_US
dc.identifier.startpage4702en_US
dc.identifier.urihttps://doi.org/10.3906/elk-1709-141
dc.identifier.urihttps://app.trdizin.gov.tr/makale/TXpNNE1EWTNOdz09
dc.identifier.urihttps://hdl.handle.net/20.500.12684/9769
dc.identifier.volume27en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.institutionauthorEvran, Fatih
dc.language.isoenen_US
dc.relation.ispartofTurkish Journal of Electrical Engineering and Computer Sciencesen_US
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBilgisayar Bilimleri, Yapay Zekaen_US
dc.subjectBilgisayar Bilimleri, Sibernitiken_US
dc.subjectBilgisayar Bilimleri, Donanım ve Mimarien_US
dc.subjectBilgisayar Bilimleri, Bilgi Sistemlerien_US
dc.subjectBilgisayar Bilimleri, Yazılım Mühendisliğien_US
dc.subjectBilgisayar Bilimleri, Teori ve Metotlaren_US
dc.subjectMühendislik, Elektrik ve Elektroniken_US
dc.titleDesign and control of an LCL-type single-phase grid-connected inverter with inverter current feedback using the phase-delay methoden_US
dc.typeArticleen_US

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