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A multi-string photovoltaic inverter for thin-film or back-side contacted solar modules

Gommeringer, Mario; Schmitt, Alexander; Braun, Michael

Abstract: Photovoltaic inverters are widely used to feed solar generated power into the public grid. Inverter topologies have to be carefully chosen, depending on the type and on the power of the solar generator. A new transformerless, three-level photovoltaic inverter circuit for multiple strings is investigated in this paper. It allows an individual MPP tracking of each string without needing a full scale boost converter for each input. Furthermore, either the positive poles or the negative poles of the strings can be connected to the neutral conductor N. Therefore, the topology is especially suited for thin-film or back-side contacted solar modules.

Zugehörige Institution(en) am KIT Elektrotechnisches Institut (ETI)
Publikationstyp Proceedingsbeitrag
Jahr 2016
Sprache Englisch
Identifikator DOI: 10.1049/cp.2016.0162
ISBN: 978-1-78561-189-6
URN: urn:nbn:de:swb:90-542100
KITopen ID: 1000054210
Erschienen in The 8th IET International Conference on Power Electronics, Machines and Drives (PEMD) 2016, 19. April 2016 - 21. April 2016, Glasgow, Scotland, UK
Verlag IET, Stevenage
Seiten 6 S.
Schlagworte Photovoltaics, MPP tracking, DC-AC converter, 3-level inverter
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