摘要在电力系统中，潮流计算占据着非常重要的地位，这是因为潮流计算可以根 据电网的运行情况计算出电网的各种运行数据，有了准确及时的运行数据就可以 对电网进行更好的调度与调控，以达到保证电能供应质量的目的。因此，潮流计 算的结果对于电网的良好运行有着极大的影响，所以寻找一种高效的潮流计算方 法一直是电力从业者的工作目标。自从上个世纪计算机技术取得突飞猛进的发展 以及电力网规模变得越来越庞大，手工计算潮流已经被淘汰，与此同时，计算机 技术在潮流计算中的应用已越来越重要。72244

本设计就是在这一大的背景下，先是对简单电力网手工算法进行了详细的介 绍，涉及到开式网和闭式网两种情况，随后又介绍了复杂电力网络的计算方法， 重点介绍了牛顿-拉夫逊法（N-R），其中包括直角坐标与极坐标两种表示方法。 最后采用牛顿拉夫逊法直角坐标潮流计算法基于 MATLAB 软件进行编程实现潮流 计算并对一个 IEEE-30 节点的标准电力网系统进行验证。

该论文有图 13 幅，表 6 个，参考文献 16 篇

毕业论文关键词： 潮流计算 牛顿-拉夫逊法 MATLAB

Power Flow Analysis of Power System Based on MATLAB

Abstract In power system, power flow calculation occupies a very important position。 This is because the power flow calculation can be according to the operation of power system calculate the power grid operating data, timely and accurate operation data can be better management and control of power grid, in order to guarantee the power supply quality。 Therefore, the result of power flow calculation has a great impact on the good operation of the power  grid,  so looking for an efficient power flow calculation method has been the goal of the work of the power。 Since last century, the computer technology has been rapid development and power network scale becomes increasingly large。 On the other hand, power flow calculation has been eliminated。 At the same time, the application of computer technology in power flow calculation has become more and more important。

The design is under the big background, first of simple power network manual algorithm were detailed introduction, relates to open networks  and closed network two kind of situations, and subsequently introduced the calculation  method  of  the  complex  power  network,  focuses  on  the     Newton

-Raphson method (N-R), which including Cartesian and polar coordinates two representation method。 In the end, the power flow calculation based  on MATLAB software is carried out by using the Newton-Raphson Cartesian coordinate power flow calculation method and the standard power grid system of a IEEE-30 node is verified。

Key words: power flow calculation      Newton-Raphson method     MATLAB

目录

摘要 I

Abstract II

目录 III

图清单 V

表清单 V

1 绪论 1

1。1 潮流计算的目的与意义 1

1。2 潮流计算的发展历史 1

1。3 MATLAB 在潮流计算中的应用 1

2 简单电力系统的潮流计算 2

2。1 基本概念 2

2。2 开式网络电压和功率分布计算