Patent ID: 11901735
Assignee: GENERAL ELECTRIC RENOVABLES ESPANA, S.L.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC H

Claim 0:
1. A method for controlling a power system having at least one inverter-based resource connected to an electrical grid, the method comprising:
monitoring, via at least one controller of the at least one inverter-based resource, one or more command signals issued by a system-level controller;
filtering and analyzing the one or more command signals issued by the system-level controller, wherein filtering the one or more command signals issued by the system-level controller further comprises filtering the one or more command signals issued by the system-level controller via one or more wash-out filters and a lag filter;
determining, via the at least one controller of the at least one inverter-based resource, whether the one or more command signals issued by the system-level controller comprises oscillatory behavior characteristic of an instability; and
in response to determining that the one or more command signals issued by the system-level controller comprises oscillatory behavior characteristic of the instability, reducing one or more gains of a volt-var regulator of the system-level controller to reduce the instability.