Comparison between Electrogeometric Model and Leader Progression Model for Transmission Lines Shielding Failure Rate
Palabras clave:
SFR, SFFOR, LPM, EGM (en)Descargas
This paper presents a proposed model to estimate the shielding failure rate based on a variation of Leader Progression Model (LPM) with stochastic characteristics, having less computational time to describe the downward leader into the lightning phenomenon. The integral model of the discharge
channel is used to estimate the shielding failure rate and its results are compared to classic electrogeometric model in an overhead transmission line of 220 [kV]. The transmission line is located in the north of Chile in the mountain region where an important lightning activity takes place. The values of Shielding Failure Rate (SFR) and the Shielding Failure Flashover Rate (SFFOR) were computed for both models to make the comparison. The values from LPM are higher, which can be explained because the LPM considers the tortuosity and ramification of the lightning channel.
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Derechos de autor 2023 Simposio Internacional sobre la Calidad de la Energía Eléctrica - SICEL

Esta obra está bajo una licencia internacional Creative Commons Atribución 4.0.