不对称线路电阻引起的网状双极直流配电网的循环净电流

2016 First International Conference on Sustainable Green Buildings and Communities (SGBC) Pub Date : 2016-12-01 DOI:10.1109/SGBC.2016.7935991

E. Vandeventer, L. Mackay, L. Elizondo, P. Bauer

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引用次数: 2

摘要

本文描述了在双极并网直流配电网中发生的循环电流现象。导体之间电阻的差异改变了导体上电流的分布。这引起了净电流的流动，这反过来由剩余电流保护方案来测量，用于检测和隔离系统中的接地故障，即使系统中没有故障。由于该网络电流的循环趋势，在这种情况下，通过增加智能通信系统可以防止保护方案的运行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Circulating net currents in meshed bipolar DC distribution grids due to asymmetrical line resistance

This article describes the circulating current phenomenon that takes place in bipolar, meshed DC distribution grids. A difference in resistance between the conductor changes the distribution of the current on the conductors. This provokes a net current to flow, which is in turn measured by the residual current protection scheme, used to detect and isolate ground faults in the system, even though there is no fault in the system. Due to the circulating tendency of this net current, the operation of the protection scheme can be prevented in such a case by the addition of a clever communication system.

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来源期刊

2016 First International Conference on Sustainable Green Buildings and Communities (SGBC)

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