Soil impulse ionisation model based on dynamic changes of electric field

被引：1

作者：

Wen, Xishan ^{[1
]}

Li, Chun ^{[1
]}

Chen, Jiahao ^{[1
]}

Tong, Xuefang ^{[2
]}

Mei, Hao ^{[3
]}

Zhou, Guangyuan ^{[4
]}

Xu, Bichuan ^{[5
]}

Lu, Hailiang ^{[1
]}

机构：

[1] Wuhan Univ, Sch Elect Engn & Automat, Wuhan, Peoples R China

[2] China Elect Power Res Inst, High Voltage Res Inst, Wuhan, Peoples R China

[3] State Grid Jiangsu Elect Power Co, Maintenance Branch, Suzhou Branch, Suzhou, Peoples R China

[4] Jingmen Power Supply Co, State Grid Hubei Elect Power Co, Jingmen, Peoples R China

[5] State Grid Jiangxi Elect Power Co, Jiangxi Elect Power Res Inst, Nanchang, Jiangxi, Peoples R China

来源：

IET SCIENCE MEASUREMENT & TECHNOLOGY | 2022年 / 16卷 / 05期

关键词：

GROUNDING SYSTEMS; BREAKDOWN; BEHAVIOR; CURRENTS; PERFORMANCE; SIMULATION;

D O I：

10.1049/smt2.12103

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：

Soil ionisation has an important influence on impulse characteristics of grounding conductor. This paper introduced improvements to an existing soil ionisation model considering the influence of electric field on the change of soil resistivity, while soil resistivity is not directly dependent on soil electric field. The validity of improved soil ionisation model was verified by surge response of vertical conductor in uniform soil and horizontally stratified soil. Furthermore, the impulse experiment was carried out on horizontal conductor in soil with finite volumes. Based on experimental configuration, the corresponding calculation model was built, and calculated results were in good agreement with experimental results.

引用

页码：283 / 292

页数：10

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