船舶环形配电网电流保护加速动作方法研究

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英文篇名：Research on Accelerated Action Method of Current Protection for Shipboard Loop Power Distribution Systems 作者：张芳 ; 毕大强 ; 曾祥君 ; 曾宪敏 英文作者：Zhang Fang;Bi Daqiang;Zeng Xiangjun;Zeng Xianmin;China School of Electrical & Information Engineering, Changsha University of Science and Technology;State Key Lab of Power System, Dept of Electrical Engineering, Tsinghua University; 关键词：船舶 ; 环形配电网 ; 加速动作 英文关键词：shipboard;;loop power distribution systems;;accelerated trip 中文刊名：CDJI 英文刊名：Marine Electric & Electronic Engineering 机构：智能电网运行与控制湖南省重点实验室,长沙理工大学;电力系统国家重点实验室,清华大学电机系; 出版日期：2014-08-15 出版单位：船电技术 年：2014 期：v.34;No.226 语种：中文; 页：CDJI201408009 页数：4 CN：08 ISSN：42-1267/U 分类号：19-22

摘要

在无通道保护方法的基础上,提出了一种适应于船舶环形配电网的电流保护加速动作的方法。该方法利用故障发生和线路一侧断路器跳闸引起的另一侧支路电流变化,和该变化所具有的时间特性来判断故障区间,来实现故障线路两端保护的相继速动。实例仿真分析验证了该方法的可行性。
        This paper presents a new accelerated action method of current protection for the shipboard loop power distribution systems, which is based on the non-communication protection method. In the method, the changing of current through local relay is adopted when the fault occurs and the remote breaker of the line is triped, and the time characteristics of this changing are used to determine the fault zone, and then accelerated trip of the local break. The simulation analysis validates the feasibility of proposed protection method.

引文

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