US 12,255,572 B1
System and method for detecting a stator distortion filter in an electrical power system
Igor Berroteran, Salem, VA (US)
Assigned to GE Infrastructure Technology LLC, Greenville, SC (US)
Filed by GE Infrastructure Technology LLC, Greenville, SC (US)
Filed on Dec. 15, 2023, as Appl. No. 18/541,802.
Int. Cl. H02P 9/10 (2006.01); F03D 9/25 (2016.01); H02P 9/00 (2006.01); H02P 101/15 (2016.01)
CPC H02P 9/102 (2013.01) [F03D 9/255 (2017.02); H02P 9/007 (2013.01); F05D 2220/76 (2013.01); F05D 2270/053 (2013.01); H02P 2101/15 (2015.01)] 20 Claims
OG exemplary drawing
 
1. A method of detecting whether a passive load is connected to a generator of an electrical power system, the generator having a rotor and a stator, the method comprising:
temporarily interrupting, via a controller, magnetic flux excitation of the generator;
observing, via the controller, a sinusoidal waveform of one or more electrical feedbacks of the generator;
when the sinusoidal waveform persists longer than a predefined duration, determining, via the controller, that the passive load is connected to the generator of the electrical power system;
when the sinusoidal waveform abruptly decays below a threshold in a time period less than the predefined duration, determining, via the controller, that the passive load is not connected to the generator of the electrical power system; and
implementing, via the controller, a control action based on whether the passive load is connected to the generator of the electrical power system.