IN-HOUSE DISCHARGE CONTROL DEVICE, AND IN-HOUSE DISCHARGE CONTROL METHOD

摘要

This in-house discharge control device is provided with a voltage sensor (9) for detecting the output voltage of an external storage battery (20), a power sensor (11) for detecting the load power of an in-house load (30), a control unit (21) for calculating the calculation value of the first discharge current of the external storage battery (20) from the detection results of the voltage sensor (9) and the power sensor (11), and a DC-DC converter (15) for controlling the discharge of the first discharge current from the external storage battery (20) in order to supply power to the in-house load (30), wherein the DC-DC converter (15) discharges the first discharge current to the in-house load (30) when the calculation value is equal to or greater than a first predetermined value.