Abstract: A method for controlling a wind turbine which is connected to an electrical grid, detects a grid frequency present in the grid and in the case of which the power output is regulated on the basis of the grid frequency by a controller and, in particular, switches off the power feed into the electrical grid if a limit value of a grid frequency is exceeded, wherein a change in the grid frequency over time is detected, a rate of change is determined and the rate of change is compared with a rate of change limit value and a modified frequency value is used to regulate the power output in the event of the rate of change limit value being exceeded.

Abstract: A wind park comprising at least two wind turbines that produce electrical power by means of a wind rotor and a generator and delivers this to an accumulating network, and comprising a park master that is configured to control said wind turbines and has a power regulator whose input is supplied with a target power signal and, at whose output, power control signals are emitted for the wind turbines, said power regulator comprising a feed-forward control module that imposes a value for the target power onto the output of said power regulator by means of a multiplication element.

Abstract: A wind park comprising at least two wind turbines that produce electrical power by means of a wind rotor and a generator and delivers this to an accumulating network, and comprising a park master that is configured to control said wind turbines and has a power regulator whose input is supplied with a target power signal and, at whose output, power control signals are emitted for the wind turbines, said power regulator comprising a feed-forward control module that imposes a value for the target power onto the output of said power regulator by means of a multiplication element.

Abstract: A method for operating a wind farm and to a wind farm is disclosed. When a wind farm and the wind energy installations involve target values for the reactive power being prescribed by a farm regulatory device, said target values for the reactive power ignored by the control units when controlling the respective wind energy installation in the event of a power supply system fault in the power supply system. Only when the power supply system fault has been rectified are said target values considered by the control units again for controlling the respective wind energy installation.

Abstract: A method for controlling a wind turbine which is connected to an electrical grid, detects a grid frequency present in the grid and in the case of which the power output is regulated on the basis of the grid frequency by a controller and, in particular, switches off the power feed into the electrical grid if a limit value of a grid frequency is exceeded, wherein a change in the grid frequency over time is detected, a rate of change is determined and the rate of change is compared with a rate of change limit value and a modified frequency value is used to regulate the power output in the event of the rate of change limit value being exceeded.

Abstract: A system and method for operating a wind energy installation or wind farm. The system includes a control unit configured to process control variables and a transfer module. The transfer module has an input interface for receiving control commands and an output interface for transmitting control variables to the control unit. The transfer module has multiple transfer logic elements each configured to convert a control command to a control variable. The transfer module has a switching device for switching between the transfer logic elements. As a result, the wind energy installation or wind farm can be connected to an electrical grid in which the control commands are transmitted in a different format than that of the control variables of the control unit.

Abstract: A method for operating a wind farm and to a wind farm is disclosed. When a wind farm and the wind energy installations involve target values for the reactive power being prescribed by a farm regulatory device, said target values for the reactive power ignored by the control units when controlling the respective wind energy installation in the event of a power supply system fault in the power supply system. Only when the power supply system fault has been rectified are said target values considered by the control units again for controlling the respective wind energy installation.

Abstract: A system and method for operating a wind energy installation or wind farm. The system includes a control unit configured to process control variables and a transfer module. The transfer module has an input interface for receiving control commands and an output interface for transmitting control variables to the control unit. The transfer module has multiple transfer logic elements each configured to convert a control command to a control variable. The transfer module has a switching device for switching between the transfer logic elements. As a result, the wind energy installation or wind farm can be connected to an electrical grid in which the control commands are transmitted in a different format than that of the control variables of the control unit.