Patent ID: 11898538
Assignee: WOBBEN PROPERTIES GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  G  H  Y | IPC F  G  H

Claim 0:
1. A method for damping low frequency oscillations in an electrical supply grid using at least one wind turbine or wind farm connected to the electrical supply grid, comprising:
feeding, via a network connection point, electrical power by the at least one wind turbine or wind farm using an inverter having an inverter output;
determining a supplementary component depending on a simplified model of a synchronous machine, wherein the simplified model is limited to emulating a subset of a plurality of properties;
entering, into the simplified model, at least one instantaneous value of a voltage measurement at the inverter output, in the electrical supply grid or at a point between the inverter output and the electrical supply grid; and
supplementing the feeding of the electrical power using the supplementary component for damping the low frequency oscillations,
wherein
the simplified model of the synchronous machine reproduces an oscillation damping property of a damper cage of the synchronous machine, and
vibratory components of the synchronous machine on which the simplified model is based are not depicted or depicted having been attenuated.