Publication:
Self-synchronizing stationary frame inverter-current-feedback control for lcl grid-connected inverters

cris.author.scopus-author-id 56125536300
cris.author.scopus-author-id 55710104900
cris.author.scopus-author-id 16175885400
cris.virtual.department Universiti Malaysia Perlis
cris.virtualsource.department 4589b82c-5007-4b8e-bcc0-1da5273235e3
dc.contributor.author Ahmad Afif Nazib
dc.contributor.author Holmes D.G.
dc.contributor.author McGrath B.P.
dc.date.accessioned 2024-10-02T04:07:37Z
dc.date.available 2024-10-02T04:07:37Z
dc.date.issued 2022-04-01
dc.description.abstract Current regulation of inductive-capacitive-inductive (LCL) grid-connected inverters usually requires multiple current sensors to actively damp the filter resonance. Inverter-side current regulation avoids this issue because of its inherent LCL filter damping properties but does not accurately control the grid-side current, particularly with distorted grids. Furthermore, both strategies typically require high-quality voltage sensors to maintain precise grid synchronization. This article proposes a novel current control strategy for LCL grid-connected inverters that only requires inverter-side current sensors. The strategy uses the resonator output states of a stationary reference frame (SRF) proportional resonant (PR) current regulator to estimate the grid voltage phase and filter capacitor current and, thus, achieve self-synchronized indirect regulation of the grid-side current. The effectiveness of the approach has been verified using simulation and matching experimental investigations.
dc.identifier.doi 10.1109/JESTPE.2021.3086262
dc.identifier.scopus 2-s2.0-85107327771
dc.identifier.uri https://hdl.handle.net/20.500.14170/7818
dc.language.iso en
dc.publisher Institute of Electrical and Electronics Engineers Inc.
dc.relation.grantno undefined
dc.relation.ispartof IEEE Journal of Emerging and Selected Topics in Power Electronics
dc.relation.ispartofseries IEEE Journal of Emerging and Selected Topics in Power Electronics
dc.relation.issn 21686777
dc.subject Grid synchronization
dc.subject grid-connected inverter
dc.subject LCL
dc.subject proportional resonant (PR) controller
dc.title Self-synchronizing stationary frame inverter-current-feedback control for lcl grid-connected inverters
dc.type Journal
dspace.entity.type Publication
oaire.citation.endPage 1446
oaire.citation.issue 2
oaire.citation.startPage 1434
oaire.citation.volume 10
oairecerif.affiliation.orgunit Universiti Malaysia Perlis
oairecerif.affiliation.orgunit RMIT University
oairecerif.affiliation.orgunit RMIT University
oairecerif.author.affiliation Universiti Malaysia Perlis
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
person.identifier.orcid 0000-0002-1248-7843
person.identifier.orcid 0000-0001-8858-5530
person.identifier.orcid 0000-0002-3378-6690
person.identifier.scopus-author-id 56125536300
person.identifier.scopus-author-id 55710104900
person.identifier.scopus-author-id 16175885400
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