Geomagnetically induced current sensitivity to assumed substation grounding resistance

Bui, Uyen; Overbye, Thomas J.; Shetye, Komal S.; Zhu, Hao; Weber, Judy

doi:10.1109/naps.2013.6666893

Cited by 8 publications

(1 citation statement)

References 11 publications

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“…This wide array of tools is crucial for modeling the power system to ensure safe and reliable operation, but it is also crucial to know which tools are appropriate to use in particular circumstances and to understand when a tool may not provide the necessary resolution. The latter includes situations due to individual modeling uncertainties such as operating condition, transformer saturation, grounding resistance, and other system characteristics which should all be appropriately considered [8]- [10].…”

Section: Introductionmentioning

confidence: 99%

Geomagnetic Disturbance Uncertainty Quantification Modeling: An Electromagnetic Transient and Steady-State Simulation based Approach

Bretas,

Brown,

Hartoonian

et al. 2023

2023 IEEE PES Innovative Smart Grid Technologies Europe (ISGT EUROPE)

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Geomagnetic disturbances have been shown to disrupt the operation of the bulk electrical system through lowfrequency effects in the earth's magnetic field that in turn induce changing electrical fields on the earth's surface. As a result, geomagnetically induced currents flow in transmission lines, introducing the risk for widespread damage to high-voltage transformers and voltage collapse due to induced reactive power loss. In a previous work, the authors showed how certain modeling assumptions can lead to results that are unacceptable in certain edge case scenarios. In this paper, the authors build on their previous results using a probabilistic approach for uncertainty quantification in order to compare the results from electromagnetic transient program modeling software, ATP, to the positive-sequence calculation software, PowerWorld.

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Section: Introductionmentioning

confidence: 99%