Performance of Large-Scale Grounding Systems in Thermal Power Plants Against Lightning Strikes to Nearby Transmission Towers

被引：11

作者：

Rizk, Mohammad E. M. ^{[1
]}

Lehtonen, Matti ^{[2
]}

Baba, Yoshihiro ^{[3
]}

Abulanwar, Sayed ^{[1
]}

机构：

[1] Mansoura Univ, Fac Engn, Dept Elect Engn, Mansoura 35516, Egypt

[2] Aalto Univ, Dept Elect Engn & Automat, FI-00076 Espoo, Finland

[3] Doshisha Univ, Dept Elect Engn, Kyoto 6100321, Japan

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2019年 / 61卷 / 02期

关键词：

Electromagnetic fields; finite-difference time-domain (FDTD) method; grounding systems (GSs); lightning strikes; ELECTROMAGNETIC-FIELDS; INDUCED VOLTAGES; INDUCED CURRENTS; ELECTRODES; REPRESENTATION; SIMULATION; ARRESTERS; BOUNDARY; MODEL; EARTH;

D O I：

10.1109/TEMC.2018.2831700

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：

In spite of the contemporary interest in renewable power plants, thermal power plants are still inevitable. Various electric equipment and apparatus are grounded via a large-scale grounding system in thermal power plants. In this paper, the three-dimensional finite-difference time-domain method has been employed to study the performance of such a large-scale grounding system against a lightning strike to a nearby transmission tower. The study has emphasized how a nearby sea, which is utilized for cooling purposes in thermal power plants, influences the ground potential rise on the large-scale grounding system considering soil ionization. The results show that the distribution of the ground potential rise on the large-scale grounding system is quite dependent on the alignment of sea with the large-scale grounding system. In addition, the extent that soil ionization affects the ground potential rise is dependent on the distance between the struck tower and the large-scale grounding system.

引用

页码：400 / 408

页数：9

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