毕业设计说明书中文摘要电力系统潮流计算是电力系统最基本的计算，也是最重要的计算。所谓潮流计算，就是已知电网的接线方式与参数及运行条件，计算电力系统稳态运行各母线电压、各支路电流与功率及网损。对于正在规划的电力系统，通过潮流计算，可以为选择电网供电方案和电气设备提供依据。潮流计算还可以为继电保护和自动装置定整计算、电力系统故障计算和稳定计算等提供原始数据。84125
本文对电力系统潮流计算进行了研究，阐述了牛顿--拉夫逊法的原理，并基于matlab对牛拉法进行仿真。在此基础上，论文对一种改进的牛拉法进行了研究，给出了改进算法，并基于Matlab进行了39节点系统的仿真，结果表明该方法具有很少的迭代次数，运行耗时短，具有很好的收敛性。
毕业论文关键词 潮流计算 牛顿--拉夫逊法 matlab
毕业设计说明书外文摘要
Title Power Flow Calculation Program Design Based on Matlab Newton-Raphson Method
Abstract Power flow calculation is the most basic calculation of power system, and is the most important calculation。 The so-called power flow calculation, is known as the power grid connection mode and parameters and operating conditions, the calculation of power system steady-state operation of the bus voltage, the branch current and power and network loss。 For the planning of the power system, through the power flow calculation, it can provide the basis for the choice of power supply plan and electrical equipment。 Power flow calculation can also provide the original data for relay protection and automatic device setting calculation, fault calculation and stability calculation of power system。
In this paper,I research on the calculation of power flow, elaborated principle of Newton - Raphson method, and based on MATLAB bovine Rafa simulation。 On this basis, the paper of a kind of improved cattle pull method was studied, improved algorithm is given and based on MATLAB were 39 node system simulation, results show that the method has very few iterations, short operation time, with good convergence。
Keywords power system flow calculation, Newton – Raphson method, matlab
目次
1 绪论 7
1。1 电力系统潮流计算的背景及意义 7
1。2 潮流计算的发展历史及现状 8
1。3 本文主要工作 9
2。1 节点导纳矩阵的基本概念 10
2。2 节点导纳矩阵的形成 12
2。3 节点导纳矩阵的修改 15
3 电力系统的潮流计算 18
3。1 牛顿——拉夫逊法简介 18
3。 2 牛顿--拉夫逊法计算潮流分布 20
4 实例分析与程序设计 25
4。1 牛拉法潮流计算的程序设计 25
4。1。1 牛拉法潮流计算的程序设计 25
4。1。2 程序设计步骤 电力系统潮流计算牛顿拉弗逊法Matlab程序设计:http://www.youerw.com/zidonghua/lunwen_99617.html