TY - GEN
T1 - Probabilistic modeling and reliability analysis for validating geomagnetically induced current data
AU - Kazerooni, Maryam
AU - Zhu, Hao
AU - Overbye, Thomas J
PY - 2013
Y1 - 2013
N2 - Geomagnetically induced currents (GICs) cause half cycle saturation of transformers, which increases harmonic currents and reactive powers in the grid. This paper presents the least-squares (LS) estimation of the geoelectric field using the GIC measurements for model validation purposes. To account for more realistic noise scenarios, a general probabilistic GIC measurement model has been developed. Using the proposed model, the accuracy of the LS estimator and its reliability in assessing the geoelectric field are available analytically. The analytical results are verified through numerical simulations using a practical 20-bus test case.
AB - Geomagnetically induced currents (GICs) cause half cycle saturation of transformers, which increases harmonic currents and reactive powers in the grid. This paper presents the least-squares (LS) estimation of the geoelectric field using the GIC measurements for model validation purposes. To account for more realistic noise scenarios, a general probabilistic GIC measurement model has been developed. Using the proposed model, the accuracy of the LS estimator and its reliability in assessing the geoelectric field are available analytically. The analytical results are verified through numerical simulations using a practical 20-bus test case.
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U2 - 10.1109/NAPS.2013.6666906
DO - 10.1109/NAPS.2013.6666906
M3 - Conference contribution
AN - SCOPUS:84893335339
SN - 9781479912551
T3 - 45th North American Power Symposium, NAPS 2013
BT - 45th North American Power Symposium, NAPS 2013
T2 - 45th North American Power Symposium, NAPS 2013
Y2 - 22 September 2013 through 24 September 2013
ER -