Photovoltaic power generating system
AssigneeCanon Kabushiki Kaisha
InventorsNobuyoshi Takehara, Naoki Manabe
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Abstract
To reduce the capacity required for an external DC power source which supplies power for snow-melting and to prevent the problems associated with defective strings, the present invention comprises individually switchable current ON/OFF means provided for each string and a control unit for individually controlling the ON/OFF of said current ON/OFF means, thus enabling the sequential application of current to each single string.
Claims10
A photovoltaic power generating system with a solar cell array which comprises a plurality of solar cell strings connected in parallel, each string comprising a plurality of solar cell modules connected in series, capable of making the solar cell array generate heat with the aid of an external power source, comprising:
- a switchable current ON/OFF means provided for each solar cell string;
- and
- a control unit for individually controlling the switchable current ON/OFF means, wherein a current is applied to each solar cell string in sequence such that heat is generated.
Dependencies are inferred from the claim text.