文档介绍：湖南科技大学
毕业论文
基于Matlab的电力系统潮流仿真计算
 
作者:
系别:成教
 
专业:电气工程自动化
学号:
指导老师:
 
时间:2011年2月13日
 
 
目录
摘要····································································1
第一章电力系统潮流计算简介·············································2
电力网络的数学模型-节点电压方程···································4
电力网络的节点电压方程·················································2
··························································2
自导纳和互导纳的确定方法···········································2
节点导纳矩阵的性质和意义···········································4
非标准变比变压器等值电路···········································5
第三章潮流计算的数学模型-潮流方程······································7
潮流计算的基本方程····················································7
电力系统节点分类·····················································10
潮流计算的约束条件···················································11
第四章牛顿-拉夫逊法潮流计算············································12
牛顿-拉夫逊法基本原理·················································12
牛顿-拉夫逊法潮流计算方法·············································14
以直角坐标形式表示················································14
牛顿-拉夫逊法程序框图·············································17
牛顿-拉夫逊法求解过程·············································18
程序需要输入数据·················································19
总结·····································································20
参考文献
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附录牛顿—拉夫逊法潮流计算程序及其结果分析······························22
基于Matlab的电力系统潮流仿真计算
学员姓名: 单位:
摘要:Matlab是一种交互式、面向对象的程序设计语言,广泛应用于工业界与学术界,主要用于矩阵运算,同时在数值分析、自动控制模拟、数字信号处理、动态分析、绘图等方面也具有强大的功能。通过M语言,可以用类似数学公式的方式来编写算法,大大降低了程序的难度并节省了时间,从而可把主要的精力集中在算法的构思而不是编程上。
传统的潮流计算程序缺乏图形用户界面,结果显示不直观,难于与其他分析功能集成,网络原始数据输入工作量大且易于出错。Matlab潮流计算研究近年来得到了长足的发展。针对这一现状结合电力系统的基本特点,以牛顿—拉夫逊法潮流计算方法为例,对IEEE-6BUS标准试验系统的潮流计算进行仿真,提出了基于Matlab的电力系统潮流仿真计算。它大大提高了计算速度,占用内存少;计算结果有良好的可靠性和可信性;适应性好,即能处理变压器变比调整,系统元件的不同描述和与其它程序配合的能力强。