US 11,870,267 B2
System and method for constraining grid-induced power deviations from grid-forming inverter-based resources
Dustin Howard, Brookhaven, GA (US); and Einar Vaughn Larsen, Ballston Lake, NY (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Nov. 29, 2021, as Appl. No. 17/536,205.
Prior Publication US 2023/0170704 A1, Jun. 1, 2023
Int. Cl. H02J 3/00 (2006.01); H02J 3/46 (2006.01)
CPC H02J 3/46 (2013.01) [H02J 2300/28 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A method for providing grid-forming control of an inverter-based resource connected to an electrical grid, the method comprising:
receiving, via a controller, a power reference signal;
determining, via the controller, an upper power boundary and a lower power boundary based on the power reference signal;
determining, via the controller, a dynamic power change limit for grid-induced power deviations from a desired power operating point;
determining, via the controller, limits for an inertial power regulator reference based, at least in part, on the upper and lower power boundaries and the dynamic power change limit; and
applying, via the controller, the limits to the inertial power regulator reference in an inertial power regulator of the inverter-based resource,
wherein determining, via the controller, the dynamic power change limit further comprises:
estimating a change in a power component of the inverter-based resource as a function of one or more grid feedbacks, the power component associated with at least one of a grid phase jump or a grid frequency drift; and
determining the dynamic power change limit based on a comparison of the change in the power component and maximum and minimum power component limits.