Inverter circuit arrangement for coupling photovoltaic generators to alternating current network, has current voltage intermediate circuit attached to alternating current network by transformer-less inverter

摘要

The arrangement has a photovoltaic generator with partial branches, which are attached to a direct current voltage intermediate circuit (2) by a direct current regulator (1) in a combined or separated manner. The direct current voltage intermediate circuit is attached to an alternating current network by a transformer-less inverter (3). The direct current regulator and the transformer-less inverter are spatially distributed. The direct current regulator and/or the inverter is connected to input terminals and/or output terminal in a parallel manner.