| 城市电力线路附近地下金属管网中感应电流与其屏蔽系数的计算 |
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| 引用本文： | 陆家榆,袁建生,马信山.城市电力线路附近地下金属管网中感应电流与其屏蔽系数的计算[J].中国电机工程学报,1999,19(11):22-27. |
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| 作者姓名： | 陆家榆 袁建生 马信山 |
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| 作者单位： | 1. 中国电力科学研究院
2. 清华大学电机系 |
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| 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。
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| 关 键 词： | 电力线路 通信线路 感应电流 屏蔽 地下金属管网 |
| 修稿时间： | 1998-09-02 |
CALCULATION OF INDUCED CURRENTS IN UNDERGROUND PIPELINE NETWORKS CLOSED TO POWER LINES IN THE CITY PROPER AND THEIR SCREENING FACTOR |
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| Lu Jiayu,Yuan Jiansheng,Ma Xinshan.CALCULATION OF INDUCED CURRENTS IN UNDERGROUND PIPELINE NETWORKS CLOSED TO POWER LINES IN THE CITY PROPER AND THEIR SCREENING FACTOR[J].Proceedings of the CSEE,1999,19(11):22-27. |
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| Authors: | Lu Jiayu Yuan Jiansheng Ma Xinshan |
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| Abstract: | 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. |
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| Keywords: | power line communication line underground pipeline induced current damage effect screening |
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