Analysis of Lightning-Induced Overvoltage Waveform Parameters

被引：0

作者：

Wang, She ^{[1
]}

Xie, Shijun ^{[2
]}

Zhuang, Chijie ^{[1
]}

Ouyang, Yong ^{[1
]}

Geng, Yinan ^{[1
]}

Zeng, Rong ^{[1
]}

Liu, Gang ^{[3
]}

Cai, Hansheng ^{[3
]}

Li, Te ^{[4
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

[2] State Grid Sichuan Elect Power Res Inst, Chengdu 610072, Peoples R China

[3] China Southern Grid Elect Power Res Inst, Guangzhou 510080, Peoples R China

[4] State Grid Zhejiang Elect Power Co, Elect Power Res Inst, Hangzhou 310007, Zhejiang, Peoples R China

来源：

2018 34TH INTERNATIONAL CONFERENCE ON LIGHTNING PROTECTION (ICLP 2018) | 2018年

关键词：

induced overvoltage; IEOS; front time; time to half value; the randomness of the moment; OVERHEAD LINES; VOLTAGES;

D O I：

暂无

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：

As the structure of power grid becomes more and more complex, the previous lightning overvoltage statistical waveform is no longer suitable for the current power system. So the lightning overvoltage need to be measured to re-statistic. In this paper, the measuring system based on Pockels effects and a method of waveform processing are proposed to analyze the time parameters of induced overvoltage, including filtering by wavelet transform and identifying induced overvoltage by the degree of similarity between the three-phase waveforms. Furthermore, the front time, the time to half value and the power frequency phase angles corresponding to the moment of induced overvoltage are statistically analyzed to conclude the value with the maximum probability as well as the randomness of the moment of induced overvoltage, which can guide the insulation design and test of power equipment.

引用

页数：5

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