| 摘要 |
PROBLEM TO BE SOLVED: To provide a charge/discharge system capable of stabilizing operation of a power conditioner for power generation.SOLUTION: A charge/discharge system comprises an EV power conditioner 122 for supplying AC power supplied from a system power supply E and a photovoltaic power generation system 10 to an electric vehicle C and converting DC power output from a storage battery into AC power to supply the AC power to a home electric appliance load. The photovoltaic power generation system 10 outputs AC power in synchronization with the system power supply E. At the time of outage, pseudo AC voltage is output from a DC/AC converter 124 of the EV power conditioner 122; the photovoltaic power generation system 10 outputs AC power synchronized with the pseudo AC voltage. The charge/discharge system also comprises: a distortion detection circuit 300 for detecting distortion voltage of the pseudo AC voltage output by the DC/AC converter 124; and a controller 310 for controlling the DC/AC converter 124 on the basis of the distortion voltage detected by the distortion detection circuit 300.SELECTED DRAWING: Figure 2A |
