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Comparison of three-phase inverter topologies for grid-connected photovoltaic systems

Vergleich von Dreiphasen-Wechselrichter-Topologien netzangeschlossene Photovoltaik-Systeme
: Bülo, T.; Sahan, B.; Nöding, C.; Zacharias, P.

European Commission, Joint Research Centre -JRC-:
The compiled state-of-the-art of PV solar technology and deployment. 22nd European Photovoltaic Solar Energy Conference, EU PVSEC 2007. Proceedings of the international conference. CD-ROM : Held in Milan, Italy, 3 - 7 September 2007
München: WIP-Renewable Energies, 2007
ISBN: 3-936338-22-1
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <22, 2007, Milano>
Conference Paper
Fraunhofer IWES ()
inverter; grid-connected; three-phase

Three-phase inverter topologies feature continuous power flow and symmetrical feed-in. The number of available photovoltaic three-phase inverter designs has increased within the past years. This paper features a study of basic three-phase power electronic inverter topologies for grid-connected PV-applications in Europe. Inverter topologies can be basically divided into two main types: Voltage-Source Inverters (VSI) and Current-Source Inverters (CSI). The recently introduced Z-Source Inverter combines some of the advantages of the CSI and the VSI. The basic behaviour of the topologies is described and performance indicators related to component stresses is given.