Patent ID: 11885314
Assignee: WOBBEN PROPERTIES GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H  Y | IPC F  H

Claim 0:
1. A method comprising:
operating an inverter on a three-phase electrical power supply grid, the operating comprising:
operating the inverter in a first operating mode by a controller for generating an output current for feeding into the three-phase electrical power supply grid, wherein the inverter in the first operating mode operates to control the voltage of the three-phase electrical power supply grid by applying the output current having a particular amplitude, a particular phase angle, and a particular frequency to the three-phase electrical power supply grid;

detecting a grid fault on the three-phase electrical power supply grid during the first operating mode, wherein the grid fault is indicative of a reduced voltage in the three-phase electrical power supply grid;
in response to detecting the grid fault, continuing to operate in the first operating mode and limiting the output current of the inverter, wherein limiting the output current comprises generating the output current dynamically by a reference system; and
setting a voltage reference system to a detected output clamping voltage.