| 摘要 |
PROBLEM TO BE SOLVED: To provide a charge and discharge system combining a quick charging device including a V2H function and a normal charging device.SOLUTION: When current from a power system 6 detected by a current detector is less than first current, a control part 10 starts control that causes a battery charger/discharger 30 of a V2H device 2 to convert AC power into DC power and when the current from the power system 6 is equal to or more than second current that is more than the first current, the control part starts control that causes the battery charger/discharger 30 to convert DC power into AC power. When the current from the power system 6 is equal to or more than third current that is more than the first current and less than the second current, magnitude of DC current to be supplied to an EV 51 by the battery charger/discharger 30 of the V2H device 2 and magnitude of AC current that can be supplied, reported to EVs 52 and 52 by normal charging devices 4 and 4, respectively, are reduced.SELECTED DRAWING: Figure 1 |
