| 摘要 |
The invention relates to a method for operating a wind turbine and/or a wind park in order to supply electric power to an electric supply network, wherein an output power, in particular an operational and/or reactive power, is regulated by means of at least one power regulating module of a regulating and/or control device. A power regulating input value is specified, a power regulating output value is determined from the power regulating input value, and a power regulating output value is output. Furthermore, a time curve of the output power of the wind energy production is detected over a detection time period, and a time curve of the network voltage of the electric supply network is detected over a detection time period. A check is carried out over the detection time period in order to determine whether the output power and the network voltage have an oscillation curve. According to the invention, an oscillation with a period (T) and with an amplitude (A) is assigned to the oscillation curve; it is determined that the oscillation is held over the detection time period and does not decrease in the process; and a signal is output in order to signal an increased oscillation state. |
