Impact of high resistance arcing fault characteristics on behavior of dwt-based detection in mv networks

被引：0

作者：

Elkalashy, Nagy I. ^{[1
]}

Elhaffar, Abdelsalam ^{[1
]}

Lehtonen, Matti ^{[1
]}

Darwish, Hatem A. ^{[2
]}

Izzularab, Mohamed A. ^{[2
]}

Taalab, Abdel-Maksoud I. ^{[2
]}

机构：

[1] Aalto Univ, Power Syst & High Voltage Engn, Helsinki, Finland

[2] Minoufiya Unversity, Fac Engn, Dept Elect Engn, Shibin Al Kawm 32511, Egypt

来源：

ECT 2007: ELECTRICAL AND CONTROL TECHNOLOGIES, PROCEEDINGS | 2007年

关键词：

arc models; earth faults; MV networks; DWT;

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：

In this paper, Discrete Wavelet Transform (DWT)-based extractions of the earth fault features in medium voltage (MV) networks are investigated. The transients produced on the electrical networks due to faults depends on several issues such as neutral point treatments and incipient fault angles. This study is carried out considering these issues with varying the fault resistance from solidly fault until one MO. Considering the effect of the fault resistance on the network transients, suitable mother wavelet and appropriate details are chosen. A threshold for DWT-based detection of earth faults is suggested. The impact of different arc model parameters is also investigated. It is invaluable for enhancing the earth fault detection in MV networks in particular the high impedance arcing faults. The fault interactions with different earthing networks (earthed, unearthed and compensated) are simulated using the ATP/FMTP program.

引用

页码：171 / +

页数：3

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