Patent ID: 11894681
Assignee: GENERAL ELECTRIC COMPANY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 18:
19. A system for controlling a wind farm to dampen power system oscillations on an electrical grid, the wind farm having a plurality of wind turbines electrically connected to the electrical grid at a point of interconnection (POI), the system comprising:
a generator and associated wind turbine controller configured with each of the wind turbines, the wind turbine controllers comprising a processor for implementing a plurality of first operations;
a farm-level controller communicatively coupled to each of the wind turbine controllers;
the plurality of first operations comprising:
receiving one or more grid signals having a characteristic indicative of a power system oscillation;
generating an auxiliary signal from the grid signals;
generating a reactive power command signal that is separate from the auxiliary signal and indicates a desired reactive power output from the wind turbine generator; and
using the auxiliary signal to modulate reactive power output from the wind turbine generator from that indicated by the reactive power command signal to change a voltage at the POI, the voltage change damping the power system oscillations.