US 12,301,005 B2
System and method for controlling an active harmonic filter in an inverter-based resource
Pushkar Chandrakant Chaudhari, Bengaluru (IN); Kapil Jha, Bengaluru (IN); Robert Gregory Wagoner, Roanoke, VA (US); Werner Gerhard Barton, Rheine (DE); Saurabh Shukla, Bengaluru (IN); and Arvind Kumar Tiwari, Niskayuna, NY (US)
Assigned to GE Vernova Infrastructure Technology LLC, Greenville, SC (US)
Filed by General Electric Renovables Espana, S.L., Barcelona (ES)
Filed on May 17, 2023, as Appl. No. 18/318,833.
Prior Publication US 2024/0388091 A1, Nov. 21, 2024
Int. Cl. H02J 3/18 (2006.01); H02J 3/01 (2006.01); H02J 3/50 (2006.01)
CPC H02J 3/1842 (2013.01) [H02J 3/01 (2013.01); H02J 3/50 (2013.01); H02J 2300/28 (2020.01)] 14 Claims
OG exemplary drawing
 
1. A method for controlling an active harmonic filter of an inverter-based resource, the method comprising:
receiving, via a maximum compensation tracker module, a grid feedback signal;
determining, via the maximum compensation tracker module, a phase shift signal based, at least in part, on the grid feedback signal;
applying, via the maximum compensation tracker module, a phase shift offset signal to the phase shift signal to obtain a modified phase shift signal;
determining, via the maximum compensation tracker module, a voltage reference signal for the active harmonic filter based, at least in part, on the grid feedback signal and the modified phase shift signal, wherein determining the voltage reference signal for the active harmonic filter based, at least in part, on the grid feedback signal and the modified phase shift signal further comprises:
rotating the grid feedback signal from an abc reference frame to a dq reference frame to obtain a rotated dq feedback signal;
filtering the rotated dq feedback signal to obtain a filtered dq feedback signal;
applying a gain to the filtered dq feedback signal to determine a dq voltage reference signal;
rotating the dq voltage reference signal from the dq reference frame back to the abc reference frame to obtain an abc voltage reference signal, the abc voltage reference signal being synonymous with the voltage reference signal; and
controlling, via the maximum compensation tracker module, the active harmonic filter using the voltage reference signal, wherein the phase shift offset signal ensures that the active harmonic filter injects a current out of phase of a targeted harmonic.