TY - GEN
T1 - Estimation of geoelectric field for validating geomagnetic disturbance modeling
AU - Kazerooni, Maryam
AU - Zhu, Hao
AU - Shetye, Komal
AU - Overbye, Thomas J.
PY - 2013
Y1 - 2013
N2 - Geomagnetic induced currents (GICs) cause half cycle saturation of transformers and consequently increase the harmonic currents and reactive power in the grid. This paper focuses on the GIC modeling as an important geomagnetic disturbance (GMD) mitigation program. A linear model is presented which relates the transformer GICs to the geoelectric fields based on power network topology and conductances. Using the transformer GIC measurements, three effective techniques are proposed for estimating geoelectric fields, namely the Least-squares (LS) estimator, the Ridge Regression (RR) Estimator and the Lease Absolute Value (LAV) one. The effectiveness of the three estimators under various noise scenarios is validated for a small systems and a larger test case through simulation results.
AB - Geomagnetic induced currents (GICs) cause half cycle saturation of transformers and consequently increase the harmonic currents and reactive power in the grid. This paper focuses on the GIC modeling as an important geomagnetic disturbance (GMD) mitigation program. A linear model is presented which relates the transformer GICs to the geoelectric fields based on power network topology and conductances. Using the transformer GIC measurements, three effective techniques are proposed for estimating geoelectric fields, namely the Least-squares (LS) estimator, the Ridge Regression (RR) Estimator and the Lease Absolute Value (LAV) one. The effectiveness of the three estimators under various noise scenarios is validated for a small systems and a larger test case through simulation results.
UR - https://www.scopus.com/pages/publications/84877830721
UR - https://www.scopus.com/pages/publications/84877830721#tab=citedBy
U2 - 10.1109/PECI.2013.6506061
DO - 10.1109/PECI.2013.6506061
M3 - Conference contribution
AN - SCOPUS:84877830721
SN - 9781467356022
T3 - 2013 IEEE Power and Energy Conference at Illinois, PECI 2013
SP - 218
EP - 224
BT - 2013 IEEE Power and Energy Conference at Illinois, PECI 2013
T2 - 2013 IEEE Power and Energy Conference at Illinois, PECI 2013
Y2 - 22 February 2013 through 23 February 2013
ER -