TY - GEN
T1 - Analytical Method for Ferroresonance Solutions in Series Compensated Power Systems due to GICs
T2 - 2021 IEEE Madrid PowerTech, PowerTech 2021
AU - Behdani, Behzad
AU - Allahbakhshi, Mehdi
AU - Asheralieva, Alia
AU - Gheisari, Mehdi
PY - 2021/6/28
Y1 - 2021/6/28
N2 - Arising from solar storms, the emerging disturbances imposed on Earth's magnetic field, can drive the flow of quasi-DC geomagnetically induced currents (GICs) in power transmission systems. The ground connections of power transformers provide a closed path through which GICs flow and push their cores into half-cycle saturation. In addition, series capacitor units are often utilized to compensate HV transmission systems. The half-cycle saturation of power transformers due to GICs, on the one hand, and the proximity of such saturated transformers to capacitor compensation units on the other can lead to the inception of ferroresonance in series compensated power systems. To prevent catastrophic equipment failures due to ferroresonance during GICs, it is crucial to determine ferroresonance solutions of networks. This paper's principal contribution is to develop an approach to analyze ferroresonance in series capacitor compensated networks during GICs. This is attained by employing a simplified equivalent single-phase model on which to mount the analysis. The authenticity of this method is verified through an EMTP-RV simulation of a benchmark example power system.
AB - Arising from solar storms, the emerging disturbances imposed on Earth's magnetic field, can drive the flow of quasi-DC geomagnetically induced currents (GICs) in power transmission systems. The ground connections of power transformers provide a closed path through which GICs flow and push their cores into half-cycle saturation. In addition, series capacitor units are often utilized to compensate HV transmission systems. The half-cycle saturation of power transformers due to GICs, on the one hand, and the proximity of such saturated transformers to capacitor compensation units on the other can lead to the inception of ferroresonance in series compensated power systems. To prevent catastrophic equipment failures due to ferroresonance during GICs, it is crucial to determine ferroresonance solutions of networks. This paper's principal contribution is to develop an approach to analyze ferroresonance in series capacitor compensated networks during GICs. This is attained by employing a simplified equivalent single-phase model on which to mount the analysis. The authenticity of this method is verified through an EMTP-RV simulation of a benchmark example power system.
KW - Earth Return Currents (ERCs)
KW - Ferroresonance
KW - Geomagnetically Induced Currents (GICs)
KW - Half-Cycle Saturation
KW - Overvoltage
KW - Transient
UR - http://www.scopus.com/inward/record.url?scp=85112371661&partnerID=8YFLogxK
U2 - 10.1109/PowerTech46648.2021.9494921
DO - 10.1109/PowerTech46648.2021.9494921
M3 - Conference contribution
AN - SCOPUS:85112371661
T3 - 2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings
BT - 2021 IEEE Madrid PowerTech, PowerTech 2021 - Conference Proceedings
PB - IEEE
Y2 - 28 June 2021 through 2 July 2021
ER -
