Method for operating a wind farm and wind farm

摘要

The method involves introducing a deceleration process of a rotor in an operating mode (71) when a number of revolutions of the rotor is exceeded. A wind energy plant is operated in an operating mode and another operating mode (75). The deceleration process of the rotor is introduced in the latter operating mode when the number of revolutions of the rotor is larger than (72) a number of revolutions limit value. Independent claims are included for the following: (1) a wind energy plant with a rotor; (2) a controlling and regulating device; and (3) a computer program with a program code medium.