Solar cell system and control method thereof

A method of controlling a solar cell system including:

• a first power converting device, of which an input side is connected to an output side of a first solar cell and which converts input power and outputs the converted power;
• a second power converting device, of which an input side is connected to an output side of a second solar cell connected to the first solar cell in parallel, and an output side is connected to a circuit between the output side of the first solar cell and the input side of the first power converting device, and which converts power input from the second solar cell and outputs the converted power;
• a bypass circuit, which is branched from a circuit between the second solar cell and the second power converting device and is connected to the circuit between the output side of the first solar cell and the input side of the first power converting device;
• a first circuit opening/closing device, which is disposed in a circuit between a point at which the bypass circuit is branched, and the input side of the first power converting device, among the circuits at the output side of the second solar cell;
• and a second circuit opening/closing device which is disposed in the bypass circuit, the method including:
• receiving, by a path control device, operational information related to the first and second solar cells;
• selecting and determining, by the path control device, a path, through which power of the second solar cell is configured to be supplied, between a first path passing through the second power converting device and a second path passing through a bypass circuit based on the received operational information related to the first and second solar cells;
• and
• controlling, by the path control device, opening or closing operations of the first and second circuit opening/closing device wherein the power of the second solar cell is supplied through the selected path.