Abstract |
In the last few years the development of small inverters in photovoltaic (PV) and battery technology was
supported by creating modular systems. However, the specific costs of small inverters are still too high. The high
costs result among other things of the passive components, especially from the SO Hz transformer. Two new inverter
topologies without a transformer are being presented which allows the connection of a low voltage generator to the
utility grid. A derivation scheme, design and experimental results from test circuits are being discussed. |