| 摘要 |
An object is to provide a duplex power supply for auxiliary machines. A power supply device includes a switching section (15) that is connected to a direct-current link (12) between a generator-side inverter (11) and a grid-side inverter (13) via an auxiliary machine power inverter (14) for converting direct-current power supplied from the direct-current link (12) into alternating-current power to form a first path (A), that is connected somewhere between a power-converting section (5) and a utility grid (7) to form a second path (B), and that is connected to auxiliary machines (8) to form a third path (C), and the switching section (15) switches between connection of the third path (C) to the first path (A) and connection of the third path (C) to the second path (B), depending on demand at the utility grid (7). |
