摘要 |
<p>PROBLEM TO BE SOLVED: To enable setting of a power supply range in a power supply path with a simple method in supplying power to the power supply path from a photovoltaic power generation device.SOLUTION: In a DC power supply system 1, a switch unit is arranged, in a power supply path, at a position to divide a power supply range to which a power from a photovoltaic power generation device 4 is supplied and a non-power supply range to which a power is not supplied. A switch control unit 62 controls the opening and closing state of the switch unit, and in setting the power supply range to which a power from the photovoltaic power generation device 4 is supplied, transmits a switch control signal, which is a signal having a lower voltage than a rated voltage supplied to load devices, to the switch unit through the power supply path to control the opening and closing state of the switch unit.</p> |