Publication:
Low-Voltage-Ride-Through Control of a Modular Multilevel Single-Delta Bridge-Cell (SDBC) Inverter for Utility-Scale Photovoltaic Systems

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dc.citedby21
dc.contributor.authorSochor P.en_US
dc.contributor.authorTan N.M.L.en_US
dc.contributor.authorAkagi H.en_US
dc.contributor.authorid56997455100en_US
dc.contributor.authorid24537965000en_US
dc.contributor.authorid7102912290en_US
dc.date.accessioned2023-05-29T06:51:13Z
dc.date.available2023-05-29T06:51:13Z
dc.date.issued2018
dc.descriptionBridge circuits; Capacitors; Cascade control systems; Electric inverters; Feedforward control; Photovoltaic cells; Power quality; Quality control; Voltage control; Feedforward control methods; Grid fault conditions; Low voltage ride through (LVRT); Low-voltage ride-through; Medium voltage; Modular multilevel cascade inverters; Photovoltaic systems; Zero sequence current; Electric power system controlen_US
dc.description.abstractThis paper presents theoretical and experimental discussions on low-voltage-ride-through operation of a modular multilevel single-delta bridge-cell (SDBC) inverter intended for utility-scale photovoltaic (PV) systems. Modern grid codes require grid-tied inverters to provide dynamic grid support during grid-fault events by injecting reactive current. This paper discusses decoupled positive- and negative-sequence reactive-current control, focusing on asymmetric voltage sags with imbalanced magnitude and phase relationships. The main objective is to present a feedforward control method based on calculation of the zero-sequence current required for achieving power balance during normal and grid-fault conditions. Moreover, this paper demonstrates a practical method that minimizes overcurrent stress in the three inverter clusters by adjusting active power drawn from PV arrays. Experimental results on a three-phase 12.6-kVA system prove that the SDBC inverter is capable of seamlessly operating through asymmetric voltage sags. � 1972-2012 IEEE.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo8378265
dc.identifier.doi10.1109/TIA.2018.2845893
dc.identifier.epage4751
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85048510061
dc.identifier.spage4739
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85048510061&doi=10.1109%2fTIA.2018.2845893&partnerID=40&md5=c524e09fe4bde20580e24d4d935fb91e
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/23720
dc.identifier.volume54
dc.publisherInstitute of Electrical and Electronics Engineers Inc.en_US
dc.sourceScopus
dc.sourcetitleIEEE Transactions on Industry Applications
dc.titleLow-Voltage-Ride-Through Control of a Modular Multilevel Single-Delta Bridge-Cell (SDBC) Inverter for Utility-Scale Photovoltaic Systemsen_US
dc.typeConference Paperen_US
dspace.entity.typePublication
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