目录
摘 要.................................................................................................................................................I
Abstract .................................................................................................................................................II
目录 .....................................................................................................................................................III
1 引言 ...................................................................................................................................................1
1.1 潮流计算目的 ........................................................................................................................1
1.2 潮流计算意义 ........................................................................................................................1
1.3 潮流计算发展史 ...................................................................................................................1
1.4 基于 MATLAB 的电力系统潮流计算发展前景 .................................................................2
2 简单电力系统潮流计算 ....................................................................................................................4
2.1 简单辐射网络的潮流计算 ....................................................................................................4
2.1.1 简单支路的潮流分布和电压降落 ............................................................................4
2.1.2 辐射型网络的手工潮流计算方法 ...........................................................................6
2.2 简单环网的潮流计算 ............................................................................................................7
2.2.1 两端电压相等 ..............................................................................................................7
2.2.2 两端电压不相等 ..........................................................................................................8
3 复杂电力系统潮流计算的计算机算法 .........................................................................................10
3.1 电力网络方程及等值电路 ..................................................................................................10
3.2 节点导纳矩阵形成及修改 ..................................................................................................11
3.3 节点的分类 ..........................................................................................................................14
3.3.1 PQ 节点 .................................................................................................................14
3.3.2 PV 节点 .................................................................................................................14
3.3.3 平衡节点 .............................................................................................................14
3.4 潮流计算的约束条件 ..........................................................................................................15
3.5 牛顿-拉夫逊法（直角坐标）..............................................................................................15
3.5.1 牛顿-拉夫逊法的推导过程 ....................................................................................15
3.5.2 潮流计算时的修正方程（直角坐标） ..................................................................17
3.5.3 雅可比矩阵的特点: ................................................................................................19
3.5.4 牛顿-拉夫逊法计算步骤 ........................................................................................19
3.6 P-Q 分解法潮流计算 ..........................................................................................................20
3.6.1 P-Q 分解法潮流计算概述 ......................................................................................20
3.6.2 P-Q 分解法的潮流计算步骤 ..................................................................................20
3.6.3 P-Q 分解法的特点 ..................................................................................................21
4 Matlab 概述 ....................................................................................................................................22
4.1Matlab 简介 ..........................................................................................................................22
4.2 Matlab 中的变量 ................................................................................................................22
4.3 Matlab 编程 ........................................................................................................................23
4.3.1 矩阵的输入 ..............................................................................................................23
4.3.2 矩阵的运算 ..............................................................................................................24
