US 11,715,958 B2
System and method for power control of an inverter-based resource with a grid-forming converter
Dustin Howard, Atlanta, GA (US); and Alfredo Sebastian Achilles, Niskayuna, NY (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jul. 29, 2021, as Appl. No. 17/388,189.
Prior Publication US 2023/0031575 A1, Feb. 2, 2023
Int. Cl. H02J 3/38 (2006.01); F03D 7/02 (2006.01); H02J 3/46 (2006.01)
CPC H02J 3/381 (2013.01) [F03D 7/0284 (2013.01); H02J 3/46 (2013.01); H02J 2300/28 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A method for controlling an inverter-based resource having a power converter connected to an electrical grid, the method comprising:
receiving, via a controller, a first power limit signal for the inverter-based resource from an external controller;
receiving, via a local power constraint module of the controller, a second power limit signal for the inverter-based resource;
determining, via the controller, a constrained power limit signal based on the first and second power limit signals;
applying, via the controller, a first frequency droop function to the constrained power limit signal;
determining, via a maximum power tracking algorithm of the controller, at least one of a power reference signal or a pitch reference signal for the inverter-based resource as a function of an output of the first frequency droop function and the constrained power limit signal;
determining, via the controller, one or more control commands for the inverter-based resource based on at least one of the power reference signal or the pitch reference signal; and
controlling, via the controller, the inverter-based resource based on the one or more control commands so as to support a grid frequency of the electrical grid within power available at the inverter-based resource.