US 12,316,113 B2
Systems and methods for evaluating electrical phasors to identify, assess, and mitigate power quality issues
Jon A. Bickel, Murfreesboro, TN (US)
Assigned to Schneider Electric USA, Inc., Boston, MA (US)
Filed by Schneider Electric USA, Inc., Andover, MA (US)
Filed on Dec. 17, 2021, as Appl. No. 17/554,665.
Claims priority of provisional application 63/127,302, filed on Dec. 18, 2020.
Prior Publication US 2022/0200281 A1, Jun. 23, 2022
Int. Cl. H02J 3/00 (2006.01); G05B 13/04 (2006.01); H02J 13/00 (2006.01)
CPC H02J 3/0012 (2020.01) [G05B 13/042 (2013.01); H02J 13/00001 (2020.01); H02J 13/00002 (2020.01)] 27 Claims
OG exemplary drawing
 
1. A method to automatically identify power quality issues from at least one energy-related signal in an electrical system, comprising:
capturing or deriving the at least one energy-related signal using one or more Intelligent Electronic Devices (IEDs) in the electrical system;
processing electrical measurement data from, or derived from, the at least one energy-related signal to identify anomalous characteristics in the electrical system;
in response to identifying the anomalous characteristics in the electrical system, determining a degree of voltage phase jump and a voltage sag magnitude based on or using the identified anomalous characteristics;
displaying the degree of the voltage phase jump and voltage sag magnitude on at least one phasor diagram;
analyzing the at least one phasor diagram to determine apparatus(es) to mitigate at least one of the identified anomalous characteristics; and
overlaying one or more mitigative solution characteristics on one or more phasor diagrams of the at least one phasor diagram to take one or more actions based on determining the apparatus(es) to mitigate the at least one of the identified anomalous characteristics.