US 12,355,233 B2
Protection circuits
Ismael Adolfo Ochoa, Stafford (GB)
Assigned to GE Vernova Infrastructure Technology LLC, Greenville, SC (US)
Appl. No. 18/251,381
Filed by GE Verona Infrastructure Technology LLC, Greenville, SC (US)
PCT Filed Nov. 12, 2021, PCT No. PCT/EP2021/081516
§ 371(c)(1), (2) Date May 1, 2023,
PCT Pub. No. WO2022/106311, PCT Pub. Date May 27, 2022.
Claims priority of application No. 20275169 (EP), filed on Nov. 18, 2020.
Prior Publication US 2024/0022066 A1, Jan. 18, 2024
Int. Cl. H02H 7/26 (2006.01); G01R 31/08 (2020.01)
CPC H02H 7/261 (2013.01) [G01R 31/086 (2013.01); H02H 7/268 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A protection circuit, for protecting a whole or part of a high voltage direct current (HVDC) power transmission network, comprising:
a plurality of sets of sensors, each of which set defines a respective protection zone, wherein a first protection zone of the protection circuit comprises a first sensor of the set of sensors, wherein a second protection zone of the protection circuit comprises a second sensor of the set of sensors; and
a controller comprising a first evaluation module programmed to evaluate first sensor information received from the first sensor to determine whether a fault has occurred within the first protection zone and further comprising a second evaluation module programmed to evaluate second sensor information received from the second sensor to determine whether a fault has occurred within the second protection zone,
the controller being further programmed, in the event of the first sensor failing, to dynamically reconfigure the first protection zone by adding the second sensor information from the second sensor to the first evaluation module's evaluation of the first protection zone.