基于MATLAB的电力系统故障分析与仿真
毕业论文关键词：电力系统故障；MATLAB/SIMULINK；短路计算
Fault analysis and Simulation of power system based on MATLAB
Abstract: There are so many circuit faults often occur during the operation of the power system. The experimental design aims to establish reasonable theoretical arithmetic model calculations power system and obtain the theoretical results according to a short circuit in the event of failure, shown by the specific characteristics of electrical power .At the same time, using MATLAB / SIMULINK simulation software for theoretical arithmetic model was established simulation and simulation results obtained. The conclusion contrast test results to prove out that MATLAB / SIMULINK simulation model and arithmetic calculation results are consistent. Besides, MATLAB makes data into a dynamic waveform display mode, providing favorable conditions for the researching short-circuit Fault.
Keywords: power system; MATLAB/SIMULINK; Short-circuit calculation
目录
摘要 i
Abstract i
目录 iii
1 绪论 1
1.1 短路计算仿真的研究意义 1
1.2 本文研究概述 1
2 MATLAB/SIMULNK软件简介 2
2.1 MATLAB功能简介 2
2.2 SIMULINK在电力系统仿真中的使用 4
3 电力系统故障概述 6
3.1 四种基本故障类型 6
3.2 现实中短路故障发生原因实例 6
3.3 电力系统故障分析 7
3.4 短路计算方法介绍 8
4 短路算例计算 13
5 MATLA\SIMULINK仿真 16
5.1 MATLAB\SIMULINK仿真模块介绍 16
5.1.1 三相电源模块（Three-Phrase.Source） 16
5.1.2 并联RLC负荷模块（Three-Phase.Parallel.RLC.Load） 18
5.1.3 三相并联线路模块(Three-Phase.Parallel.RLC.Branch) 19
5.1.4 三相双绕组变压器{Three-Phase.Transformer(Two Windings) 19
5.1.5 三相电压电流测量模块（THREE-PHASE.V-I. MEASUREMENT） 21
5.1.6 三相故障模块（Three-Phase.Fault） 23
5.1.7 示波器模块（scope） 25
5.2 算例仿真过程介绍和结果图分析 28
5.2.1 仿真①:三相短路故障 28
5.2.2 仿真②:两相短路接地故障 32
5.2.3 仿真③:BC两相间短路故障 34
5.2.4 仿真④：单相接地短路故障 35
6 实验结论 38
致谢 41
参考文献 42