US 11,870,386 B2
System and methods for controlling a power generating asset having a non-deliverable component of a total power output
Dustin Howard, Brookhaven, 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 Oct. 19, 2021, as Appl. No. 17/504,584.
Prior Publication US 2023/0122027 A1, Apr. 20, 2023
Int. Cl. H02J 3/01 (2006.01); H02P 9/10 (2006.01); H02P 9/00 (2006.01)
CPC H02P 9/102 (2013.01) [H02P 9/007 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for controlling a power generating asset having a generator, the generator being a double fed generator having a stator operably coupled to a transformer and a rotor operably coupled to the transformer via a power converter, the method comprising:
determining, via a controller of the power generating asset, a non deliverable component and a deliverable component of a total power output of the generator;
determining, via a compensation module of the controller, a first control signal based, at least in part, on the non deliverable component, the first control signal being configured to establish a modified rotor current set point;
determining, via a buffer control module of the controller, a buffer control signal for a DC energy buffer based, at least in part, on the non deliverable component, the DC energy buffer being operably coupled between a line side converter and a rotor side converter of the power converter, wherein determining the buffer control signal further comprises:
filtering, via a conditioning module of the buffer control module, the non deliverable component; and
applying, via the conditioning module, at least one limit to the buffer control signal based on a maximum rating or a minimum rating of a component of the power generating asset;
precluding delivery of the non deliverable component to an electrical grid by delivering the non deliverable component to the DC energy buffer via the line side converter in response to the first control signal and the buffer control signal; and
delivering the deliverable component of the total power output of the generator to the electrical grid.