US 12,255,552 B2
Method for boosting current compensation in auxiliary resonant commutated pole inverter (ARCPI) with saturable inductor
Eddy C. Aeloiza, Apex, NC (US); Yuxiang Shi, Cary, NC (US); Goran Mandic, Wake Forest, NC (US); and Weiqiang Chen, Cary, NC (US)
Assigned to ABB Schweiz AG, Baden (CH)
Filed by ABB Schweiz AG, Baden (CH)
Filed on Oct. 27, 2022, as Appl. No. 17/975,527.
Prior Publication US 2024/0146212 A1, May 2, 2024
Int. Cl. H02M 7/539 (2006.01); H02M 1/00 (2006.01); H02M 7/48 (2007.01)
CPC H02M 7/539 (2013.01) [H02M 1/0012 (2021.05); H02M 7/4815 (2021.05)] 20 Claims
OG exemplary drawing
 
1. A method for an auxiliary device of an auxiliary resonant commutated pole inverter (ARCPI) to determine a boosting time of the ARCPI, wherein the auxiliary device comprises an auxiliary switch path that uses a resonant inductor with at least one saturable inductor, comprising:
calculating, by a processor of the auxiliary device, a first boosting time in the auxiliary switch path based on a theoretical resonance inductance and a voltage that are applied to the resonant inductor;
determining, by the processor, a second boosting time in the auxiliary switch path based on a look-up table; and
determining, by the processor, the boosting time in the auxiliary switch path based on the first boosting time and the second boosting time.