POWER CONTROL DEVICE, CONTROL METHOD FOR POWER CONTROL DEVICE, DISTRIBUTED POWER SUPPLY SYSTEM, AND CONTROL METHOD FOR DISTRIBUTED POWER SUPPLY SYSTEM

摘要

Inrush current to a load at the time of a power outage is reduced. A power control apparatus (101) includes an inverter (25) and a controller (30). When the controller (30) detects a power outage in a power grid (300), the controller (30) performs control so that output voltage supplied from the inverter (25) to a switching device (102) rises to an operating voltage. The operating voltage is the voltage at which the switching device (102) operates to switch from electric power supplied to load devices (200 to 203) from the power grid (300) to electric power from the inverter (25). The controller (30) also performs control to maintain the output voltage at or below the operating voltage when the output voltage reaches the operating voltage and then performs control so that the output voltage rises to a predetermined voltage exceeding the operating voltage.