Title :
Comparative analysis of exciting current harmonics and reactive power consumption from GIC saturated transformers
Author :
Dong, Xuzhu ; Liu, Yilu ; Kappenman, John G.
fDate :
28 Jan-1 Feb 2001
Abstract :
Geomagnetically induced currents (GIC) can cause severe transformer half-cycle saturation. This paper introduces a simplified method based on the equivalent magnetizing curve of the transformer to estimate harmonic currents and MVAr with only the given the GIC and nameplate and core design information of the transformer. The simulation method is validated with the field results. The simulation methods are validated with observational and field test data for transformers experiencing half-cycle saturation
Keywords :
geomagnetism; harmonic distortion; magnetisation; power system harmonics; power transformers; reactive power; GIC saturated transformers; MVAr estimation; core design information; equivalent magnetizing curve; exciting current harmonics; geomagnetically induced currents; harmonic currents estimation; nameplate information; reactive power consumption; transformer half-cycle saturation; Couplings; Geomagnetism; Harmonic analysis; Large-scale systems; Phase transformers; Power system harmonics; Power system modeling; Reactive power; Saturation magnetization; Transformer cores;
Conference_Titel :
Power Engineering Society Winter Meeting, 2001. IEEE
Conference_Location :
Columbus, OH
Print_ISBN :
0-7803-6672-7
DOI :
10.1109/PESW.2001.917055
