Modeling and experimental verification of a high impedance arcing fault in MV networks

被引：7
|
作者：
Elkalashy, N. I. [1 ]
Lehtonen, M. [1 ]
Darwish, H. A. [2 ]
Izzularab, M. A. [2 ]
Taalab, A. I. [2 ]
机构：
[1] Aalto Univ, Power Syst & High Voltage Engn, Helsinki, Finland
[2] Minoufiya Univ, Dept Elect Engn, Fac Engn, Shibin Al Kawm 32511, Egypt
来源：
2006 IEEE/PES POWER SYSTEMS CONFERENCE AND EXPOSITION. VOLS 1-5 | 2006年
关键词：
arc simulation; ATP/EMTP; dynamic arc equations; high arcing impedance faults; tree leaning fault;
D O I：
10.1109/PSCE.2006.296225
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In this paper, a high impedance arcing fault of the tree leaning type in medium voltage (MV) networks is modeled and experimentally verified. The fault is represented as two parts; an arc model and a high resistance. The arc is generated by the tree leaning towards the network conductor and the tree resistance limits the fault current. The arcing element is dynamically simulated using thermal equations. The arc model parameters and resistance values are determined using the experimental results. The fault behavior is simulated by the ATP/EMTP program, in which the arc model is realized using the universal arc representation. The experimental results have validated the system transient model. Discrete Wavelet Transform (DWT) is used to extract the fault features and therefore localize the fault events. It is found that are restrikeings enhance fault detection when DWT is utilized.
引用
收藏
页码：1950 / +
页数：4
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