| 摘要 |
Disclosed is a DC power distribution system wherein a plurality of power conversion devices are cooperatively operated in a simple configuration, which enables flexible adaptation to changes in a user's requirements and to social conditions. The DC power distribution system (ESD) comprises: a first power conversion device (11) which supplies power generated from a solar power generating device (2); a second power conversion device (12) which converts power between a storage battery (3) that is always connected and the DC power distribution system (ESD); a third power conversion device (13) which converts power between an AC system (ESA) and the DC power distribution system (ESD); and an operation control unit (10c) which sets first control parameters and second control parameters to the second power conversion device (12) and the third power conversion device (13), respectively, in accordance with the operation mode set by an operation mode setting unit (10b). The DC power distribution system (ESD) controls the power supply direction and operation starting and stopping of the second power conversion device in accordance with the voltage Vbus of the DC power distribution system (ESD) and the first control parameters and controls the power supply direction and operation starting and stopping of the third power conversion device in accordance with the voltage Vbus and the second control parameters. |
