Transformerless Photovoltaic Inverters Connected to the Grid

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236 Citationer (Scopus)

Abstract

Renewable energy sources are getting more and more widespread, mainly due to the fact that they generate energy by keeping the environment clean. Most of these systems have an isolation transformer included, which if excluded from the system would increase the efficiency and decrease the size of PV installations, furthermore it would lead to a lower cost for the whole investment. But there are some safety issues regarding the missing galvanic isolation. This paper is aiming to analyze and compare the most common single-stage transformerless PV inverter topologies for single-phase and three-phase with respect to the leakage current generation. The best results, both for single-phase and three-phase systems, are obtained when the middle point of the input capacitors is connected to the neutral point, thereby minimizing the voltage fluctuations present at the terminals of the PV panel.

OriginalsprogEngelsk
TitelApplied Power Electronics Conference, APEC 2007 - Twenty Second Annual IEEE Publication
Antal sider5
ForlagIEEE
Publikationsdato2007
Sider1733-1737
ISBN (Trykt)1-4244-0713-3
DOI
StatusUdgivet - 2007
BegivenhedApplied Power Electronics Conference, APEC 2007 - Anaheim, CA, USA
Varighed: 25 feb. 20071 mar. 2007

Konference

KonferenceApplied Power Electronics Conference, APEC 2007
Land/OmrådeUSA
ByAnaheim, CA
Periode25/02/200701/03/2007

Bibliografisk note

Digital Object Identifier: 10.1109/APEX.2007.357753

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