| 摘要 |
The invention relates to a method for feeding electric power from at least one wind energy installation (100) or a wind farm (112) into an electric power supply system (120) at a mains voltage (U) and a mains frequency (F), wherein the method is prepared for feeding in electric active power (P) and electric reactive power (Q), and the active power (P) that is fed in can be set by means of an active power controller (R1, R2) on the basis of a system state (U, f) and/or the reactive power (Q) that is fed in can be set by means of a reactive power controller on the basis of at least one system state (U, f) and the active power controller (R1, R2) and the reactive power controller prescribe a setpoint value that is to be fed in that is set in each case by means of a setting function (Fs) on the basis of at least one system state (U, f), wherein the setting function (Fs) is prescribed by using sampling points (ST1, ST2, ST3) that are defined by pairs of values ([Pi, fi]) comprising, in each case, a value for the active power (P) or reactive power (Q) and a value for the system state (U, f). |
