Calculation of Lighting-Induced Overvoltage on Transmission Line Based on Simplified Wagner Field Cancellation Method

Abstract:

Based on Wagner field cancellation method, the paper presents a simplified method to calculate the induced overvoltage on transmission lines excited by lightning striking on tower. Firstly the square-wave response of lightning-induced voltage is calculated, and then the responses produced by other excitations can be calculated by Duhamel integral. This method can reflect the time-varying characteristic of the induced overvoltage. The simulation results show that the amplitude of lightning current and the length of upward leader have greater impacts on the induced overvoltage.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 1951-1954
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.1951
• Online since: October 2013
• Authors: Xun Zhang*, Hua Rong Zeng, Yan Ling Li, Hua Lin Liu, Hai Zhou, Jun Kai Huang
• Keywords: Lighting-Induced Overvoltage, Lightning Striking on Tower, Simplified Method, Wagner Field Cancellation Method

References

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