·…………………….……………….…………………毕业论文基于MATLAB的电力系统短路故障分析与仿真院部机械与电子工程学院专业班级电气工程及其自动化届次2015届学生姓名学号指导教师装订线……………….…….………….………….………i目录摘要.....................................................................................................................................IAbstract........................................................................................................................................II1引言.................................................................................................................................11.1课题研究的背景....................................................................................11.2课题研究的国内外现状...............................................................12短路故障分析.....................................................................................................12.1近年来短路故障....................................................................................12.2短路的定义及其分类......................................................................22.3短路故障产生的原因及危害.................................................42.4预防措施.........................................................................................................42.5短路故障的分析诊断方法........................................................53仿真与建模............................................................................................................63.1仿真工具简介...........................................................................................63.1.1MATLAB的特点.......................................................................................63.1.2Simulink简介..................................................................................................73.1.3SPS(SimPowerSystems)...........................................................................................83.1.4GUI(图形用户界面)...............................................................83.2模型的建立.....................................................................................................83.2.1无限大电源系统短路故障仿真模型.....................83.2.2仿真参数的设置.............................................................................94仿真结果分析..................................................................................................164.1三相短路分析...........................................................................................164.2单相短路分析(以A相短路为例)...............................184.3两相短路(以A、B相短路为例)...................................224.4两相接地短路(以A、B相短路为例).....................255结论..............................................................................................................................286前景与展望.........................................................................................................28参考文献...................................................................................................................29致谢...................................................................................................................30iiiiContentsAbstract..................................................................