| 摘要 |
A wind power plant includes a wind turbine generator and an electrical storage device that supply electric power to a utility grid. A wind-turbine controller performs for the wind turbine generator an acoustic-noise suppression operation in which the rotational speed of blades is controlled in order to suppress acoustic noise, and also calculates a reduction in output power that is the difference in output power between the normal output power and the acoustic-noise-suppression output power. An electrical-storage-device controller causes the electrical storage device to be charged or discharged, based on the reduction in output power, the acoustic-noise-suppression output power, and the grid-demanded output power demanded from the utility grid. Therefore, the wind power plant can supply, to the utility grid, the electric power demanded from the utility grid even when the operation of suppressing the occurrence of acoustic noise is performed for the wind turbine generator. |
