POWER CONVERSION DEVICE AND POWER MANAGEMENT DEVICE

摘要

PROBLEM TO BE SOLVED: To control power that is reversely supplied to a system in response to an output restriction signal from a power company that requests to limit reversely supplied power to a certain ratio of rated capacity.SOLUTION: A power conversion device 10 according to the present invention can convert DC power generated by a distributed power supply 40 into AC power to reversely supply it to a system 60. The power conversion device comprises: a first current detection unit 12 that obtains a value of reverse flow current; a power conversion unit 11 that converts DC power supplied by the distributed power supply 40 into AC power to reversely supply it; a communication unit 14 that obtains an output restriction signal from a power company; and a control unit 16 that controls the power conversion unit 11 on the basis of the obtained value of reverse flow current so that reverse flow power is at a prescribed constant value satisfying the request of the output restriction signal upon obtaining the output restriction signal.SELECTED DRAWING: Figure 1