| 摘要 |
The invention relates to a method for operating an inverter (3) which is connected to a power supply system (7) by means of a transformer (4) for feeding electrical energy, wherein output currents (ia, ib, ic) and output voltages (Va, Vb, Vc) of the inverter are detected, and power switches of the inverter (3) are switched on the basis of control signals, wherein the control signals are generated at a fundamental frequency of the power supply system (7) depending on the output currents (ia, ib, ic) and output voltages (Va, Vb, Vc). The method is distinguished in that the control signals are additionally generated with a multiple of the fundamental frequency by means of a control loop (36) with positive feedback depending on a harmonic of the output voltages (Va, Vb, Vc) of the inverter (3). The invention further relates to an inverter (3) which is designed to carry out the method. |
