| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply system capable of efficiently converting power ranging from low power to high power by combining a plurality of power conditioners.SOLUTION: A power supply system comprises: a first power adjustment unit 16 which is connected between AC power supplies 24, 26 and a first power storage unit 12 including a first storage battery 12a, and is capable of mutually converting AC power from the AC power supplies and DC power from the first power storage unit; and a second power adjustment unit 18 which is connected between the AC power supplies and a second power storage unit 14 including a second storage battery 14a, and is capable of mutually converting AC power from the AC power supplies and DC power from the second power storage unit. The power supply system selects at least one of the first and second power adjustment units on the basis of power consumption of an electric load 28 and AC power from the AC power supplies; and controls the first power adjustment unit so as to charge/discharge the first storage battery when the first power adjustment unit is selected, and controls the second power adjustment unit so as to charge/discharge the second storage battery when the second power adjustment unit is selected. |
