FIELD: electrical engineering.
SUBSTANCE: electric power (P) is introduced into electric supply grid (2) by means of wind farm (112), wind farm (112) supplying power to supply grid (2) from interconnecting network (4) via a transformer (6), and first interconnecting network (4) has the voltage of the interconnecting network, and supply grid (2) has the mains voltage. Input power is carried out depending on the virtually measured voltage (UVIRT) and as a virtually measurable voltage (UVIRT), the voltage of the virtual measurement point (12) wherein virtual measurement point (12) is in transformer (6) and virtually measurable voltage (UVIRT) at point (12) of the virtual measurement is calculated from at least one of: the voltage of the connecting network, the current (I) of the transformer, the instantaneous input power (P), and the instantaneous reactive power input (Q), and wherein the calculation is performed depending on at least one of: resistance (R) and reactivity (X) of the transformer (6) or its part.
EFFECT: technical result is to ensure the stabilization of the supply grid.
8 cl, 8 dwg
