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DC Field | Value | Language |
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dc.citation.endPage | 1997 | - |
dc.citation.number | 4 | - |
dc.citation.startPage | 1987 | - |
dc.citation.title | IEEE TRANSACTIONS ON POWER ELECTRONICS | - |
dc.citation.volume | 30 | - |
dc.contributor.author | Kim, Katherine A. | - |
dc.contributor.author | Shenoy, Pradeep S. | - |
dc.contributor.author | Krein, Philip T. | - |
dc.date.accessioned | 2023-12-22T01:36:30Z | - |
dc.date.available | 2023-12-22T01:36:30Z | - |
dc.date.created | 2015-02-05 | - |
dc.date.issued | 2015-04 | - |
dc.description.abstract | When photovoltaic (PV) cells are connected in series, they experience internal and external mismatch that reduces output power. Differential power processing (DPP) architectures achieve high system efficiency by processing a fraction of the total power while maintaining distributed local maximum power point operation. This paper details the computationalmethods and analysis used to determine the operation of PV-to-bus and PV-to-PV DPP architectures with rating-limited converters. Simulations for both DPP architectures are used to evaluate system performance over 25 years of operation. Based on data from field studies, a PV power coefficient of variation can be estimated as 0.086 after 25 years. An improvement figure of merit reflecting the ratio of energy produced to that delivered in a conventional system is introduced to evaluate comparative performance. Converter ratings of 15-17% for PV-to-bus and 23-33% for PV-to-PV architectures are identified as appropriate ratings for a 15-submodule system (five PV panels in series). Both DPP architectures with these ratings are shown to deliver up to 2.8% more power compared to a conventional series-string architecture based on the expected panel variation over 25 years of operation. DPP converters also outperform dc optimizers in terms of lifetime performance. | - |
dc.identifier.bibliographicCitation | IEEE TRANSACTIONS ON POWER ELECTRONICS, v.30, no.4, pp.1987 - 1997 | - |
dc.identifier.doi | 10.1109/TPEL.2014.2326045 | - |
dc.identifier.issn | 0885-8993 | - |
dc.identifier.scopusid | 2-s2.0-84910039715 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/10461 | - |
dc.identifier.url | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6819463 | - |
dc.identifier.wosid | 000344993500022 | - |
dc.language | 영어 | - |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | - |
dc.title | Converter Rating Analysis for Photovoltaic Differential Power Processing Systems | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | Dc power optimization | - |
dc.subject.keywordAuthor | differential power processing (DPP) | - |
dc.subject.keywordAuthor | photovoltaic (PV) |
- |
dc.subject.keywordAuthor | solar cell degradation | - |
dc.subject.keywordAuthor | solar cell variation | - |
dc.subject.keywordPlus | MODULE | - |
dc.subject.keywordPlus | RELIABILITY | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | MISMATCH | - |
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