Design Optimization of Transformerless Grid-Connected PV Inverters Including Reliability

Eftichios Koutroulis, Frede Blaabjerg

Publikation: Bidrag til tidsskriftKonferenceartikel i tidsskriftForskningpeer review

165 Citationer (Scopus)
336 Downloads (Pure)

Abstrakt

This paper presents a new methodology for optimal design of transformerless photovoltaic (PV) inverters targeting a cost-effective deployment of grid-connected PV systems. The optimal switching frequency as well as the optimal values and types of the PV inverter components is calculated such that the PV inverter LCOE generated during the PV system lifetime period is minimized. The LCOE is also calculated considering the failure rates of the components, which affect the reliability performance and lifetime maintenance cost of the PV inverter. A design example is presented, demonstrating that compared to the nonoptimized PV inverter structures, the PV inverters designed using the proposed optimization methodology exhibit lower total manufacturing and lifetime maintenance cost and inject more energy into the electric-grid and by that minimizing LCOE.
OriginalsprogEngelsk
TidsskriftI E E E Transactions on Power Electronics
Vol/bind28
Udgave nummer1
Sider (fra-til)325-335
Antal sider11
ISSN0885-8993
DOI
StatusUdgivet - jan. 2013
Begivenhed27th Annual IEEE Applied Power Electronics Conference and Exposition - Orlando, FL, USA
Varighed: 5 feb. 20129 feb. 2012
Konferencens nummer: 27

Konference

Konference27th Annual IEEE Applied Power Electronics Conference and Exposition
Nummer27
LandUSA
ByOrlando, FL
Periode05/02/201209/02/2012

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