Method for controlling the power emitted from a wind farm , wherein the wind farm has wind energy installations which are electrically connected to one another by means of a wind farm network , in which - a wind farm control unit transmits a wind farm preset value to installation control units which are each intended to control one wind energy installation , - all the installation control units receive the same wind farm preset value, - wherein each installation control unit determines an installation maximum power (P max ) on the basis of the wind farm preset value and on the basis of a measured installation actual power (P I ), which corresponds to the power produced by the associated wind energy installation , - the respectively associated wind energy installation is regulated such that the installation actual power (P I ) is less than the installation maximum power (P max ), wherein the wind farm preset value is a wind farm power gradient (dP/dt), wherein each installation control unit derives an installation power gradient (dp/dt) which is tailor-made for it from the wind farm power gradient (dP/dt), and the installation maximum power (P max ) associated with it is calculated on the basis of its installation power gradient (dp/dt), and wherein - the wind farm control unit is linked to a converter control unit , and a converter which is connected to the wind farm is controlled such that it produces an AC voltage (U1, 2, 3) in the wind farm network , whose actual frequency (γ act ) corresponds to the wind farm preset value, wherein each installation control unit detects the actual frequency (γ act ) and determines the wind farm preset value from the actual frequency (γ act ). - a wind farm control unit transmits a wind farm preset value to installation control units which are each intended to control one wind energy installation , - all the installation control units receive the same wind farm preset value, - wherein each installation control unit determines an installation maximum power (P max ) on the basis of the wind farm preset value and on the basis of a measured installation actual power (P I ), which corresponds to the power produced by the associated wind energy installation , - the respectively associated wind energy installation is regulated such that the installation actual power (P I ) is less than the installation maximum power (P max ), wherein the wind farm preset value is a wind farm power gradient (dP/dt), wherein each installation control unit derives an installation power gradient (dp/dt) which is tailor-made for it from the wind farm power gradient (dP/dt), and the installation maximum power (P max ) associated with it is calculated on the basis of its installation power gradient (dp/dt), and wherein - the wind farm control unit is linked to a converter control unit , and a converter which is connected to the wind farm is controlled such that it produces an AC voltage (U1, 2, 3) in the wind farm network , whose actual frequency (γ act ) corresponds to the wind farm preset value, wherein each installation control unit detects the actual frequency (γ act ) and determines the wind farm preset value from the actual frequency (γ act ). <EOS>