Photovoltaic electric generator for generation of photovoltaic electricity on roof of e.g. building, has control module connected electrically to network and controlled opening of switch when module is not powered network

摘要

The generator (1) has photovoltaic modules (21-25) e.g. photovoltaic panels, connected in series and connected to an electrical supply network (5) by an inverter (4). A controlled switch i.e. static relay, is connected between two of the photovoltaic modules. A control module (6) is connected electrically to the electrical supply network and controls an opening of the switch when the module is not powered the electric power network. Potential difference generated by each photovoltaic module at the time of its illumination is lower than 50 V.