SRF Based Output Voltage Control of 3-Level 3-Phase 4-Leg AT-NPC Inverter

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dc.contributor.authorAvcı, Emre
dc.contributor.authorUçar, Mehmet
dc.date.accessioned2020-04-30T23:32:12Z
dc.date.available2020-04-30T23:32:12Z
dc.date.issued2018
dc.departmentDÜ, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.descriptionWOS: 000448383600025en_US
dc.description.abstractThis paper proposes a synchronous reference frame (SRF) based high performance output voltage controller for the 3-level 3-phase 4-leg (3P4L) advanced T-type neutral point clamped (AT-NPC) inverter operated in stand-alone mode. 3-phase inverters for standalone operation are required to provide 3-phase balanced nominal voltage under different load types such as unbalanced linear and non-linear loads. 3P4L inverters working with these types of load allow controlling zero sequence voltage by additional fourth leg. The main contribution of this work is the control of the 3-level 3P4L AT-NPC inverter with an LC-type filter modeled based on the output voltage and capacitor current feedback in the synchronous coordinate system. According to obtained capacitor current decoupled model, double loop PI controller is adopted to control the output voltage of the inverter. An inner capacitor current feedback loop is employed to provide fast dynamic response and active damping of the capacitor current. Finally, transient and steady state operation performance of the controller have been tested with PSIM simulation studies considering different load types. Simulation results validate that the proposed SRF based double loop PI controller ensure high dynamic response and high quality output voltage with less than 3% total harmonic distortion (THD) value for the 3-level 3P4L AT-NPC inverter.en_US
dc.description.sponsorshipScientific and Technological Research Council of TurkeyTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [215E357]en_US
dc.description.sponsorshipThis study is supported by The Scientific and Technological Research Council of Turkey (Grant No. 215E357)en_US
dc.identifier.doi10.2339/politeknik.386964en_US
dc.identifier.endpage966en_US
dc.identifier.issn1302-0900
dc.identifier.issn2147-9429
dc.identifier.issue4en_US
dc.identifier.startpage961en_US
dc.identifier.urihttps://doi.org/10.2339/politeknik.386964
dc.identifier.urihttps://hdl.handle.net/20.500.12684/4642
dc.identifier.volume21en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.publisherGazi Univen_US
dc.relation.ispartofJournal Of Polytechnic-Politeknik Dergisien_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subject3-levelen_US
dc.subject4-legen_US
dc.subjectAT-NPC inverteren_US
dc.subjectcarrier-based PWMen_US
dc.subjectvoltage controlen_US
dc.titleSRF Based Output Voltage Control of 3-Level 3-Phase 4-Leg AT-NPC Inverteren_US
dc.typeArticleen_US

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