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雪龙2号极地考察船主配电板三相短路电流计算分析

Calculation and Analysis of Three-Phase Short-Circuit Current in Main Distribution Board of Xuelong 2 Polar Survey Ship
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摘要 本文介绍了极地考察船主配电板三相短路电流计算分析,通过考察船上的电气设备参数、计算发电机、电动机的短路电流以及电流汇总,进而去分析考察船电力系统整体情况。本文主要分析极地考察船主配电板三相短路电流计算,三相短路属于对称短路,发生短路时,电力系统会有一个3~5秒的暂态过程,在这个从正常的状态过渡到短路的状态过程中短路电流的变化十分复杂,需要用专门的计算工具。短路电流的计算与分析是电力系统分析的重要内容之一,它在极地考察船电力系统的规划设计和运行中选择电工设备、整定继电保护、分析事故提供了有效手段。 This paper introduces the calculation and analysis of the three-phase short-circuit current of the main distribution board of the polar inspection ship.By investigating the parameters of the ship’s electrical equipment,the short-circuit current of the generator and motor as well as the current summary are calculated,and then the overall situation of the ship’s power system is analyzed and inspected.This paper mainly analyses the calculation of three-phase short-circuit current of ship main distribution board in polar survey.Three-phase short-circuit belongs to symmetrical short-circuit.When short-circuit occurs,the power system will have a transient process of 3-5 seconds.During the transition from normal state to short-circuit state,the change of short-circuit current is very complex,and special calculation tools are needed.The calculation and analysis of short-circuit current is one of the important contents of power system analysis.It provides an effective means for selecting electrical equipment,setting relay protection and analyzing accidents in the planning,design and operation of ship power system.
作者 张健 夏虹 陈誉斌 黄嵘 张懿 魏海峰 Zhang Jian;Xia Hong;Chen Yubin;Huang Rong;Zhang Yi;Wei Haifeng(不详)
出处 《变频器世界》 2020年第1期83-86,共4页 The World of Inverters
关键词 极地考察船 三相短路 电流分析 Polar inspection ship Three-phase short circuit Current analysis
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