中国电机工程学报2012，Vol.32Issue(33)：148-156,9.
架空与埋地线缆系统大地返回阻抗和导纳计算方法
Earth Return Impedance and Admittance of Overhead Line-underground Cable Systems
摘要
Abstract
The impedance and admittance parameters of multiconductor systems consisting of overhead lines, underground cables and pipelines and so on are of particular importance for the study on overvoltage protection and electromagnetic compatibility within and between systems. In this paper, considering the earth as horizontal layered model, based on the Hertz vector equations of horizontal electric dipole, the recursive formulas of earth return impedance of overhead and underground multiconductor systems are derived by means of the interface conditions and boundary conditions of electric field and magnetic field, which are of high universality and wide application. In addition, the solution to earth return admittances of underground conductor systems is presented in the case of multilayer earth model, along with the formulas of earth return admittances for homogeneous and two-layer earth. Compared with the formulas in the existing literatures, the proposed method is demonstrated to be correct and effective.关键词
架空与埋地导体/大地返回阻抗/大地返回导纳/赫兹矢量/传输线Key words
overhead and underground conductors/earth return impedance/earth return admittance/Hertz vector/transmission lines分类
信息技术与安全科学引用本文复制引用
齐磊,白淑华,原辉,崔翔..架空与埋地线缆系统大地返回阻抗和导纳计算方法[J].中国电机工程学报,2012,32(33):148-156,9.基金项目
中央高校基本科研业务费专项基金资助(09TG01). （09TG01）
