Abstract: A method increases the power of an AC grid by means of the conductors which connect the grid coils of the grid transformer. The conductor-ground voltages and the AC phase voltage are kept lower than a voltage value. The sinusoidal phase voltages of the expanded grid are increased by up to 25% compared to the AC phase voltages, while the phase currents always remain sinusoidal. To this end, the ? generators couple harmonic voltages between the conductors and ground and reduce the amplitude of the resulting hypersinusoidal conductor-ground voltages such that they always remain below the Uix value. In addition, the ? generators control the transferred grid power.

Abstract: The invention relates to a method for increasing the power of an AC grid by means of the conductors (4) which connect the grid coils (3), (5) of the grid transformer (2), (6), wherein the conductor-ground voltages (Ule) and the AC phase voltage (Uac) are kept lower than a voltage value (Ulex). The sinusoidal phase voltages (Uhac) of the expanded grid are increased by up to 25% compared to the AC phase voltages (Uac), while the phase currents (Iac) always remain sinusoidal. To this end, the ? generators (13), (14) couple harmonic voltages ?U between the conductors (4) and ground (7) and reduce the amplitude of the resulting hypersinusoidal conductor-ground voltages (Uhac) such that they always remain below the Uix value. In addition, the ? generators control the transferred grid power (smart grid). The method can be used in existing AC installations having overhead conductors or ground cables without modification to the line in order to redundantly transfer 25% more power, and with 44% less transmission loss.