On the development of dynamic stroke density for transmission line for power system operational applications

Abstract This paper proposes a method to estimate the impact of lightning activity on transmission lines. The method uses a time-variant density parameter described using kernel basis functions. The algorithm is implemented and tested with historical data in real transmission lines located in Colombia for the years 2015 and 2016. Statistical analysis is performed to observe the lightning activity on each line, characterizing its severity in density magnitude and the duration of it. The correlation of this parameter with the line failures is also analyzed. Finally, the paper concludes that this parameter could be useful for applications on a real-time operation.

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