| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply device capable of supplying stable power without interruption by selectively promoting or suppressing discharge from a plurality of systems of power storage means while keeping depth of discharge of each storage means low.SOLUTION: A power supply device comprises: a plurality of power supply systems comprising a natural force power generation device and power storage means which stores output of the power generation device and on which charge/discharge control is performed; and system control means for determining a power supply system to be preferentially discharged out of the plurality of power supply systems. The system control means includes a chain of output adjustment means of all of the power supply systems, each output adjustment means of which detects a charge state of another power supply system, promotes discharge of the power supply system when the charge state of the other power supply system is lower than a prescribed value, and suppresses discharge of the power supply system when the charge state of the other power supply system is higher than the prescribed value. |
