Abstract: The present invention relates to a method (40) for transmitting electrical power between an energy supply grid (16) and an energy consumer (12) or energy producer (12) which is coupled to the energy supply grid (16), wherein at least one electrical variable of the energy supply grid (16) is detected, wherein a discrepancy between the electrical variable and a rated variable of the energy supply grid (16) which is associated with the electrical variable is determined, wherein the power transmission is controlled on the basis of the discrepancy, and wherein the electrical variable is a mains frequency and/or a mains voltage of the energy supply grid (16) and the rated variable is a rated frequency and/or rated voltage of the energy supply grid (16).

Abstract: The present invention relates to a method (40) for transmitting electrical power between an energy supply grid (16) and an energy consumer (12) or energy producer (12) which is coupled to the energy supply grid (16), wherein at least one electrical variable of the energy supply grid (16) is detected, wherein a discrepancy between the electrical variable and a rated variable of the energy supply grid (16) which is associated with the electrical variable is determined, wherein the power transmission is controlled on the basis of the discrepancy, and wherein the electrical variable is a mains frequency and/or a mains voltage of the energy supply grid (16) and the rated variable is a rated frequency and/or rated voltage of the energy supply grid (16).

Abstract: A voltage transformer is described, which includes a. first parallel connection of a first capacitor having a number of N>=1 actuators connected in parallel having N-input voltages and N-input currents. A second capacitor is connected to the first parallel connection in series, the capacitor voltage being lower than or equal to the lowest input voltage of the actuators.

Abstract: A DC-AC inverter assembly, in particular a solar cell inverter of a photovoltaic plant, is disclosed. The inverter includes a semiconductor bridge circuit and wherein a DC chopper controller is provided for creating half-waves of an AC voltage on the output side and the bridge circuit is connected downstream of the DC chopper controller and acts as pole changer on the half-waves.