摘要
提出了计算城市电力线路附近具有外护层的地下金属管网中感应电流的节点电压型双侧消去法。该法计算速度快，所需内存少。给出了金属管道之间磁耦合的处理方法，使双侧消去法扩大了使用范围。还给出了工程计算实例。通过计算也表明：地下金属管网对通信线的纵向感应电动势有明显的屏蔽作用。
In this paper a node voltage type double sided elimination method is presented for calculating induced currents in underground pipelines with coating in the vicinity of power lines in the city proper. This method is of high calculating speed, and needs less computer memory. A method that deals with the inductive coupling between pipelines is also given, which extends the application range of the double sided elimination method. On the basis of the methods presented in the paper, a software is developed and applied to the analysis of a practice engineering.
出处
《中国电机工程学报》
EI
CSCD
北大核心
1999年第11期22-27,共6页
Proceedings of the CSEE
基金
北京供电设计院资助
关键词
电力线路
通信线路
感应电流
屏蔽
地下金属管网
power line
communication line
underground pipeline
induced current
damage effect
screening.
