通信用-48V直流配电系统及其短路分析

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Abstract With the development of society, the way of DC distribution has received broad attention for its own advantage. -48V DC distribution system as the core part of communication system has played an important role in normal communication operation. However, because of the research of DC distribution system is still in early stage, DC protection technology has become the bottleneck of development of DC distribution system. This paper studies -48V DC distribution system, introduces the structure of the system and analyzes the short circuit characteristics from the short circuit resource, short circuit point, short circuit protection and the established short circuit fault mathematical simulation model of battery. Finally, the current problem of short circuit fault protection technology is summarized and the technical research on short circuit protection for DC distribution system was prospected.

Key words： communication power supply short circuit fault DC distribution short circuit characteristics

Published: 22 March 2016

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	Xu Huoju
	Miao Xiren

Cite this article:

Xu Huoju,Miao Xiren. Short Circuit Analysis of -48V DC Distribution System for Communication[J]. Electrical Engineering, 2016, 17(3): 1-5.

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http://dqjs.cesmedia.cn/EN/Y2016/V17/I3/1

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