摘要本论文主要大概的介绍了MATLAB/SIMULINK的大体特点以及深入对电力系统中的几种典型故障进行了分析，对故障出现的原因、现象进行了深入的推导，分析了其特征。然后通过当今先进的电力系统中的仿真软件MATLAB/SIMULINK对电力系统中的几种典型故障进行了仿真分析,提出了计算短路电流的基本方法和步骤。通过一系列不同的设置，再由仿真结果中得到的波形与实际计算的结果进行相比较，结合自己学的理论知识，最后得出一个结论。74070

由两者的结果可以看出，基于MATLAB/SIMULINK仿真的电力故障分析结果与实际计算出来得到的故障结果两者基本上相一致的。因此表明，在电力系统的故障分析中，我们可以借用MATLAB/SIMULINK强大的计算能力和仿真能力来模拟我们所需要得到的结果，可以准确直观的得到电力系统故障动态特性的变化曲线轨迹，这样就可以快速的分析电力系统故障的一些原因和能够更快速的解决故障问题，给电力部门带来许多便利的地方，不需要通过繁杂的计算过程得到结论，大大的提高了工作效率。

该论文有图16幅，表3个，参考文献25篇。

毕业论文关键词：电力系统  MATLAB/SIMULINK  短路电流计算  故障分析

Fault Analysis and Simulation of Power Systems

Abstract This paper is mainly about the general features of the MATLAB/SIMULIK is introduced ,and further analyzes several typical fault in power system,on the basis of the failure reason,and the phenomenon to infer it’s characteristics。 And then through the modern advanced power system simulation software of MATLAB/SIMULINK for several typical fault of power system to simulate it ,and put forward the basic methods and steps of calculation of short-circuit current。 Through a series of different set, and then finally calculated by the simulation results of the waveform to the actual results are compared, finally combined with the learning theory of book come to a conclusion。 

Can be seen by the results of the theirs, power failure analysis results based on the MATLAB/SIMULINK and the failure results of actual calculation are consistent basically。 Therefore suggests that in power system fault analysis, we can use MATLAB/SIMULINK powerful computation ability and ability to simulate the result what we need。 Can be accurate ability and intuitive curve track the variations of dynamic characteristics of the power system,so that it can be some of reasons for rapid analysis of power system fault and can more quickly solve the problem of fault,it bring a lot of convenience to power department,without get a conclusion by complex calculation process,greatly improve the working efficiency。 

Papers have figure 16 picture,list 3,25 reference。

Key words:The Power System  MATLAB/SIMULINK  Short circuit current calculation  Failure analysis

目  录

     摘要 I

    Abstract II

     图清单 V

     表清单 VI

    变量注释表 VI

第一章 绪论 1

1。1 国内外现状 1

1。2 电力系统故障分析的意义 1

1。3电力系统短路故障产生的原因 2

1。4 电力系统短路的危害 3

1。5 目前我国限制短路故障的方法及措施 3