Tower-foot grounding model for EMT programs based on transmission line theory and Marti's model

被引：5

作者：

Alipio, Rafael ^{[1
]}

De Conti, Alberto ^{[2
]}

Vasconcellos, Felipe ^{[3
]}

Moreira, Fernando ^{[3
]}

Duarte, Naiara ^{[1
]}

Marti, Jose ^{[4
]}

机构：

[1] Swiss Fed Inst Technol Lausanne EPFL, Electromagnet Compatibil Lab, CH-1015 Lausanne, Switzerland

[2] Univ Fed Minas Gerais, Dept Elect Engn, Belo Horizonte, MG, Brazil

[3] Univ Fed Bahia, Dept Elect & Comp Engn, Salvador, BA, Brazil

[4] Univ British Columbia, Elect & Comp Engn Dept, Vancouver, BC, Canada

来源：

ELECTRIC POWER SYSTEMS RESEARCH | 2023年 / 223卷

关键词：

Lightning transients; Transmission lines; EMT programs; Grounding; Transmission line theory; RATIONAL APPROXIMATION; SYSTEM;

D O I：

10.1016/j.epsr.2023.109584

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper proposes a tower-foot grounding system model compatible with EMT programs which might be useful for the simulation of lightning transients in overhead lines. The proposed model is based on the solution of the telegrapher's equations and the application of the classical Marti's transmission line model. The model is implemented in the Alternative Transients Program (ATP) and validated considering a benchmark electromag-netic model. Its accuracy is evaluated and shown both in terms of the simulated ground potential rise (GPR) and line overvoltages developed through the insulator strings due to lightning currents. Finally, the model accuracy is also demonstrated in terms of the line backflashover outage rate.

引用

页数：8

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