A Cable Modeling Method Based on Vector Fitting Algorithm Considering Frequency-Variable Characteristics

被引：0
|
作者：
Tian, Li [1 ]
Ming, Zhang [2 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, Xian, Shaanxi, Peoples R China
[2] Guangdong Power Grid Corp, Foshan Power Supply Bur, Foshan, Peoples R China
来源：
2019 IEEE ASIA POWER AND ENERGY ENGINEERING CONFERENCE (APEEC 2019) | 2019年
关键词：
cable modeling; semi-conducting layers; series impedance; parallel admittance; vector fitting; equivalent circuit;
D O I：
10.1109/apeec.2019.8720342
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：
Cable modeling is of great significance to study the propagation characteristics of fault signals so as to facilitate the diagnosis and positioning of fault signals. However, the typical cable model in most commercial software does not take into account the semiconductor layer of the cable. Considering the influences of conductor skin effects and frequency-variable characteristics of semi-conducting layers, this paper presents an equivalent lumped parameter model for single-core cross-linked polyethylene (XLPE) insulation cables. A rational approximation for the cable frequency domain model is made based on vector fitting algorithm. Moreover, the parameters of per unit length (p.u.l.) in RLC lumped circuit are obtained by modifying the algorithm.
引用
收藏
页码：121 / 125
页数：5
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