Closed-Form Expressions for the Calculation of the Ground-Return Impedance and Admittance of Underground Cables

被引：5
|
作者：
De Conti, Alberto [1 ]
Duarte, Naiara [2 ]
Alipio, Rafael [3 ,4 ]
机构：
[1] Univ Fed Minas Gerais UFMG, Dept Elect Engn, BR-31270901 Belo Horizonte, MG, Brazil
[2] Ecole Polytech Fed Lausanne EPFL, CH-1015 Lausanne, Switzerland
[3] Fed Ctr Technol Educ CEFET MG, BR-31270901 Belo Horizonte, MG, Brazil
[4] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2023年 / 38卷 / 04期
关键词：
Underground cables; transmission line theory; ground-return impedance; ground-return admittance; WAVE-PROPAGATION; TRANSIENT ANALYSIS; APPROXIMATION; PLANE; WIRES; MODEL;
D O I：
10.1109/TPWRD.2023.3264614
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：
This paper proposes closed-form expressions for the calculation of the ground-return impedance and admittance of underground cables. The proposed expressions are shown to reproduce the integral equations of Xue with great accuracy for a wide range of ground resistivities and frequencies. An error analysis, a comparison with closed-form expressions available in the literature, and time-domain simulations demonstrate the performance of the proposed equations, which avoid the calculation of improper integrals and present an accurate performance for typical cable arrangements.
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页码：2891 / 2900
页数：10
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