PHOTOVOLTAIC GENERATOR DEVICE, PHOTOVOLTAIC POWER RECEIVING INSTRUMENT AND PHOTOVOLTAIC GENERATING SYSTEM

PROBLEM TO BE SOLVED: To prevent a malfunction and damage of an electrical instrument and a damage of a secondary battery (the malfunction and the damage of a photovoltaic power receiving instrument and its load) caused by supplying power having a different specification, and allow commonly using a single photovoltaic generator device for a plurality of photovoltaic power receiving instruments whose necessary power specifications are different, in the photovoltaic generator device, the photovoltaic power receiving instrument and a photovoltaic generating system. SOLUTION: The photovoltaic generating system comprises the photovoltaic generator device 1 and the photovoltaic power receiving instrument 10. The photovoltaic generator device 1 comprises a photovoltaic generating element 2, an outputting means 4 for supplied power information, terminals 8 for outputting power and a terminal 9 for supplied power information. The photovoltaic power receiving instrument 10 comprise terminals 14 for inputting power, a storing means 12 for necessary power information and a terminal 15 for necessary power information. A determining means 3 for supplying power is installed in an information line LC between the outputting means 4 for supplied power information and the storing means 12 for necessary power information. A controlling means 5 for supplying power is installed in a power line LP between the photovoltaic generating element 2 and the load 11.