Isolated High Step-Up DC-DC Converter With Low Voltage Stress

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dc.contributor.authorEvran, Fatih
dc.contributor.authorAydemir, Mehmet Timur
dc.date.accessioned2020-04-30T23:18:47Z
dc.date.available2020-04-30T23:18:47Z
dc.date.issued2014
dc.departmentDÜ, Mühendislik Fakültesi, Mekatronik Mühendisliği Bölümüen_US
dc.descriptionWOS: 000332013100032en_US
dc.description.abstractFuel cell stacks and photovoltaic panels generate rather low dc voltages and these voltages need to be boosted before converted to ac voltage. Therefore, high step-up ratio dc-dc converters are preferred in renewable energy systems. A new Z-source-based topology that can boost the input voltage to desired levels with low duty ratios is proposed in this paper. The topology utilizes coupled inductor. The leakage inductance energy can efficiently be discharged. Since the device stresses are low in this topology, low-voltage MOSFETs with small RDS (on) values can be selected to reduce the conduction loss. These features improve the converter efficiency. Also, the converter has a galvanic isolation between source and load. The operating principles and steady-state analysis of continuous and discontinuous conduction modes are discussed in detail. Finally, experimental results are given for a prototype converter that converts 25 V dc to 400 V dc at various power levels with over 90% efficiency to verify the effectiveness of the theoretical analysis.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [111E176]en_US
dc.description.sponsorshipThis work was supported by the Scientific and Technological Research Council of Turkey (TUBITAK) under the project contract 111E176. Recommended for publication by Associate Editor Y.-M. Chen.en_US
dc.identifier.doi10.1109/TPEL.2013.2282813en_US
dc.identifier.endpage3603en_US
dc.identifier.issn0885-8993
dc.identifier.issn1941-0107
dc.identifier.issue7en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage3591en_US
dc.identifier.urihttps://doi.org/10.1109/TPEL.2013.2282813
dc.identifier.urihttps://hdl.handle.net/20.500.12684/3522
dc.identifier.volume29en_US
dc.identifier.wosWOS:000332013100032en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherIeee-Inst Electrical Electronics Engineers Incen_US
dc.relation.ispartofIeee Transactions On Power Electronicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCoupled-inductor convertersen_US
dc.subjectdc/dc convertersen_US
dc.subjecthigh voltage gain converters and isolateden_US
dc.subjectZ-source convertersen_US
dc.titleIsolated High Step-Up DC-DC Converter With Low Voltage Stressen_US
dc.typeArticleen_US

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