File(s) under permanent embargo
Grid-connected isolated PV microinverters: a review
journal contribution
posted on 2017-01-01, 00:00 authored by R Hasan, S Mekhilef, Mohammadmehdi Seyedmahmoudian, Ben HoranBen HoranGalvanic isolation in grid-connected photovoltaic (PV) microinverters is a very important feature concerning power quality and safety issues. However, high-frequency transformers and high switching losses degrade the efficiency of the isolated types of microinverters. Recently, several isolated topologies were proposed to increase the efficiency and lifetime of PV converters. This paper presents a comprehensive review of the most recent isolated topologies of PV microinverters. These topologies are categorized into two groups in terms of their power processing stages: 1) single-stage microinverter and 2) multi-stage microinverter. Various topologies are presented, compared, and scrutinized in terms of the power losses at different stages, control techniques, position of the decoupling capacitor, and cost analysis. Recommendations are provided to improve the existing topologies and select the suitable control techniques to obtain a clear picture of the framework for next-generation isolated PV microinverters.
History
Journal
Renewable and sustainable energy reviewsVolume
67Pagination
1065 - 1080Publisher
ElsevierLocation
Amsterdam, The NetherlandsPublisher DOI
ISSN
1364-0321eISSN
1879-0690Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2016, ElsevierUsage metrics
Categories
No categories selectedKeywords
microinverterphotovoltaic systemgrid-connected inverterinverterPVScience & TechnologyTechnologyGreen & Sustainable Science & TechnologyEnergy & FuelsScience & Technology - Other TopicsPHOTOVOLTAIC INVERTER TOPOLOGYAC-MODULEFLYBACK INVERTERHIGH-EFFICIENCYTRANSFORMERLESS INVERTERDISTRIBUTED-GENERATIONINTERACTIVE INVERTERISLANDING-DETECTIONPOWER INVERTERENERGY
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC