US 11,929,618 B2
Systems and methods for abrupt voltage change detection on grid and reactive current response
Raghunandan Subramaniam, Kent (GB); Adunola Christiana Fashogbon, Kent (GB); Apoorv Prakash Hiremath, Kent (GB); and Ankit Vinodchandra Patel, Kent (GB)
Assigned to Cummins Power Generation Limited, Ramsgate (GB)
Filed by Cummins Power Generation Limited, Ramsgate (GB)
Filed on Oct. 28, 2021, as Appl. No. 17/513,236.
Claims priority of provisional application 63/106,989, filed on Oct. 29, 2020.
Prior Publication US 2022/0140605 A1, May 5, 2022
Int. Cl. H02J 3/18 (2006.01); G05B 19/042 (2006.01); H02J 13/00 (2006.01)
CPC H02J 3/18 (2013.01) [G05B 19/042 (2013.01); H02J 13/00002 (2020.01); G05B 2219/2639 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of detecting abrupt voltage changes and supplying reactive power support comprising:
identifying, by a genset connected to a power grid, a maximum voltage value and a minimum voltage value based on an average of a plurality of mains voltage values;
detecting, by the genset, an abrupt voltage change by determining whether an instantaneous mains voltage value is above the maximum voltage value or below the minimum voltage value;
determining, by the genset, an operating mode associated with a power factor and a reactive power of the genset based on the detected abrupt voltage change; and
adjusting, by the genset, based on the operating mode, an amount of reactive current either supplied to the power grid or consumed by the genset for a period of time.