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

Claim 0:
1. A method for damping power system oscillations in a power system network having one or more local inverter-based generators within a plant, the plant connected to a grid at a point of intersection (POI), the method comprising:
at a plant-level controller, receiving one or more grid signals having a characteristic indicative of a power system oscillation;
at the plant-level controller, generating an auxiliary signal from the grid signals;
transmitting the auxiliary signal to a local controller of one or more of the inverter-based generators;
receiving a reactive power command signal at the local controller that is separate from the auxiliary signal and indicates a desired reactive power output from the inverter-based generators;
at the local controller, using the auxiliary signal to modulate the reactive power output from the inverter-based generators from that indicated by the reactive power command signal to improve damping of the power system oscillations.