To ensure that, even when a charging device is installed in parallel with a high voltage power receiving facility such as a store facility, a battery loaded in a battery loaded device can be charged with increased charging efficiency while also the total amount of received power is restricted to a determined amount of power.
A charge control unit 152 of a charging device 100 has a charge command arithmetic section which, when the predicted value of a total amount of received power from a system power supply 99 including a requested amount of power requested from a battery loaded device 114 is larger than a preset upper limit value, calculates a command value for output from a power conversion section 106 with which the battery loaded device 114 can be charged within an extent that the total amount of received power from the system power supply 99 does not exceed the upper limit value. The power conversion section 106 has a plurality of power conversion units. The charge command arithmetic section executes processing to raise the overall conversion efficiency of the power conversion units used for charging among the plurality of power conversion units A to D before it calculates the command value for output.
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ISHIDA TAKAHARU
RISSEN KAZUMI
SAKAYORI YOSHITOMO
KAWAI SHOJI
MARUI TOMOYUKI
NOZAKI TAKAHIRO
Etsuo Tada