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Article: A design methodology for smart LED lighting systems powered by weakly regulated renewable power grids

TitleA design methodology for smart LED lighting systems powered by weakly regulated renewable power grids
Authors
KeywordsIsolated Power Grids
Light-Emitting Diodes
Lighting Systems
Mini-Grids
Renewable Power Sources
Smart Loads
Issue Date2011
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=5165411
Citation
IEEE Transactions on Smart Grid, 2011, v. 2 n. 3, p. 548-554 How to Cite?
AbstractThe increasing use of intermittent renewable energy sources to decarbonize electric power generation is expected to introduce dynamic instability to the mains. This situation is of particular concern for mini-grids or isolated grids in which wind and/or solar power sources are the dominant or the sole power sources. In this paper, we utilize the photo-electro-thermal theory to develop a design methodology for LED lighting systems for weakly regulated voltage sources, with the objectives of minimizing the fluctuation of the human luminous perception and adopting reliable LED driver with long lifetime and robustness against extreme weather conditions. The proposed LED system, practically verified in a 10 kVA small power grid driven by an ac voltage source and a wind energy simulator, can be considered as a smart load with its load demand following the power generation. A typical swing of 40 V in the mains will cause only 15% actual light variation in a 132 W LED system when compared with 40% change in 150 W high-pressure-sodium lamp system. The design methodology enables future large-scale LED systems to be designed as a new generation of smart loads that can adapt to the voltage and power fluctuations arising from the intermittent nature of renewable energy sources. © 2011 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/155648
ISSN
2015 Impact Factor: 3.19
2015 SCImago Journal Rankings: 4.784
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLee, CKen_US
dc.contributor.authorLi, Sen_US
dc.contributor.authorHui, SYen_US
dc.date.accessioned2012-08-08T08:34:39Z-
dc.date.available2012-08-08T08:34:39Z-
dc.date.issued2011en_US
dc.identifier.citationIEEE Transactions on Smart Grid, 2011, v. 2 n. 3, p. 548-554en_US
dc.identifier.issn1949-3053en_US
dc.identifier.urihttp://hdl.handle.net/10722/155648-
dc.description.abstractThe increasing use of intermittent renewable energy sources to decarbonize electric power generation is expected to introduce dynamic instability to the mains. This situation is of particular concern for mini-grids or isolated grids in which wind and/or solar power sources are the dominant or the sole power sources. In this paper, we utilize the photo-electro-thermal theory to develop a design methodology for LED lighting systems for weakly regulated voltage sources, with the objectives of minimizing the fluctuation of the human luminous perception and adopting reliable LED driver with long lifetime and robustness against extreme weather conditions. The proposed LED system, practically verified in a 10 kVA small power grid driven by an ac voltage source and a wind energy simulator, can be considered as a smart load with its load demand following the power generation. A typical swing of 40 V in the mains will cause only 15% actual light variation in a 132 W LED system when compared with 40% change in 150 W high-pressure-sodium lamp system. The design methodology enables future large-scale LED systems to be designed as a new generation of smart loads that can adapt to the voltage and power fluctuations arising from the intermittent nature of renewable energy sources. © 2011 IEEE.en_US
dc.languageengen_US
dc.publisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=5165411-
dc.relation.ispartofIEEE Transactions on Smart Griden_US
dc.rightsIEEE Transactions on Smart Grid. Copyright © IEEE-
dc.rights©2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectIsolated Power Gridsen_US
dc.subjectLight-Emitting Diodesen_US
dc.subjectLighting Systemsen_US
dc.subjectMini-Gridsen_US
dc.subjectRenewable Power Sourcesen_US
dc.subjectSmart Loadsen_US
dc.titleA design methodology for smart LED lighting systems powered by weakly regulated renewable power gridsen_US
dc.typeArticleen_US
dc.identifier.emailLee, CK:cklee@eee.hku.hken_US
dc.identifier.emailHui, SY:ronhui@eee.hku.hken_US
dc.identifier.authorityLee, CK=rp01580en_US
dc.identifier.authorityHui, SY=rp01510en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1109/TSG.2011.2159631en_US
dc.identifier.scopuseid_2-s2.0-80052047133en_US
dc.identifier.hkuros208773-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052047133&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume2en_US
dc.identifier.issue3en_US
dc.identifier.spage548en_US
dc.identifier.epage554en_US
dc.identifier.isiWOS:000208787600014-
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridLee, CK=24537405500en_US
dc.identifier.scopusauthoridLi, S=48561536100en_US
dc.identifier.scopusauthoridHui, SY=7202831744en_US

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