Fronius International Gmbh

Michael Koren

Florian Guschlbauer

Dominik Pfaffenbichler

A photovoltaic system () includes an inverter unit () adapted to convert an electrical direct current (DC) power generated by photovoltaic modules () into an electrical alternating current (AC) power supplied via AC lines (), and a smart meter () connected to a power supply grid PSG (). The system further include an emergency unit () having a controller (A) adapted: a) to open an emergency switch () to automatically disconnect the photovoltaic system () from the power supply grid PSG () if a power supply grid failure is detected; and b) to notify a current switching state of the emergency switch () by means of power line communication (PLC) communication via the AC lines () to a controller of the inverter unit ().

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Pettenbach, Austria

Michael Koren