Reliability-Oriented Design and Analysis of Input Capacitors in Single-Phase Transformer-less Photovoltaic Inverters

Huai Wang, Yongheng Yang, Frede Blaabjerg

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

35 Citations (Scopus)
485 Downloads (Pure)

Abstract

While 99% efficiency has been reported, the target of 20 years of service time imposes new challenge to cost-effective solutions for grid-connected photovoltaic (PV) inverters. Aluminum electrolytic capacitors are the weak-link in terms of reliability and lifetime in single-phase PV systems. A reliability-oriented design guideline is proposed in this paper for the input capacitors in single-phase transformer-less PV inverters. The guideline ensures that the service time requirement is to be accomplished under different power levels and ambient temperature profiles. The theoretical analysis has been demonstrated by a 1 kW single-phase PV inverter.
Original languageEnglish
Title of host publication2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2013)
Number of pages5
PublisherIEEE Press
Publication date2013
Pages2929-2933
ISBN (Print)978-1-4673-4354-1
ISBN (Electronic)978-1-4673-4353-4
DOIs
Publication statusPublished - 2013
EventThe Applied Power Electronics Conference and Exposition, 2013 - Long Beach Convention Cente, Long Beach, United States
Duration: 17 Mar 201321 Mar 2013

Conference

ConferenceThe Applied Power Electronics Conference and Exposition, 2013
LocationLong Beach Convention Cente
Country/TerritoryUnited States
CityLong Beach
Period17/03/201321/03/2013
SeriesI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

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