Comparative analysis of exciting current harmonics and reactive power consumption from GIC saturated transformers

Author

Dong, Xuzhu ; Liu, Yilu ; Kappenman, John G.

Volume

1

fYear

2001

fDate

28 Jan-1 Feb 2001

Firstpage

318

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Winter Meeting, 2001. IEEE

Conference_Location

Columbus, OH

Print_ISBN

0-7803-6672-7

Type

conf

DOI

10.1109/PESW.2001.917055

Filename

917055