| 摘要 |
A control system for DC power distribution can flexibly take a measure against user's demands or a change in social conditions by having a plurality of power conversion devices cooperatively operate with each other in a simple configuration. The control system includes a first power conversion device (11) for supplying power generated in a photovoltaic power generation device (2) to a DC power distribution system (ESD), a second power conversion device (12) for performing power conversion between the DC power distribution system (ESD) and a storage battery (3) which is always connected thereto, a third power conversion device (13) for performing power conversion between an AC power system (ESA) and the DC power distribution system (ESD), and an operation control portion (10c) for setting a first control parameter and a second control parameter to the second power conversion device (12) and the third power conversion device (13), respectively, depending on an operation mode set by an operation mode setting portion (10b). The control system controls a direction, start, and stop of power supply of the second power conversion device (12) depending on a voltage (Vbus) of the DC power distribution system (ESD) and the first control parameter, and controls a direction, start, and stop of power supply of the third power conversion device (13) depending on the voltage (Vbus) and the second control parameter. |
