高压输电网潮流的计算机算法程序设计

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1、贵州大学电气工程学院电力系统分析课程设计报告书题目:高压输电网潮流的计算机算法程序设计专业：班级：学号：学生姓名：指导教师：2012年7月1日26目录第一章课程设计概述·············································31.1设计目的················································31.2设计要求················································31.3设计题目···············································31

2、.4设计内容················································31.5设计时间··············································4第二章（针对该课程设计题目的）设计思路····························42.1电力基本网络·············································42.2用Kundur4机11节点来验算程序····························4第三章电力系统潮流计算（牛顿-拉夫逊法）概述··············

3、········53.1牛顿-拉夫逊法的原理·····································53.2牛顿拉夫逊潮流算法计算基本步骤···························626第四章程序流程图及程序代码····································54.1程序程图················································84.2程序代码·················································9第五章运行结果分析··················

4、··························185.1输入原始数据···········································185.2节点导纳矩阵Y··········································195.3计算结果（线路正常运行时）······························225.4计算结果（节点4的功率减半时）··························235.5计算结果分析···········································25第六章总结·········

5、···········································26参考文献·······················································2726第一章课程设计概述1.1设计目的1.掌握电力系统潮流计算的基本原理和电力系统运行方式的变化；2.掌握并能熟练运用一门计算机语言（MATLAB语言或C语言或C++语言）；3.采用计算机语言对潮流计算进行计算机编程计算。1.2设计要求1.程序源代码；2.选定算例的输入，输出文件；3.程序说明；4.选定算例的程序计算过程；5.选定算例的手算过程（至少迭代2次）（可选）。1.3设计题目

6、高压输电网潮流的计算机算法程序设计（PQ分解法、牛顿-拉夫逊法）1.4设计内容1.根据电力系统网络推导电力网络数学模型，写出节点导纳矩阵；2.赋予各节点电压变量（直角坐标系形式）初值后，求解不平衡量；3.形成雅可比矩阵；4.求解修正量后，重新修改初值，从2开始重新循环计算；5.求解的电压变量达到所要求的精度时，再计算各支路功率分布、功率损耗和平衡节点功率;6.上机编程调试；连调；267.计算分析给定系统潮流分析并与手工计算结果作比较分析。8.准备计算机演示答辩，书写该课程设计说明书（必须计算机打印）。1.5设计时间2012年春季第17周至第18周第二章（针对该课程设计题目的）设计思路2.1

7、电力基本网络1、在潮流问题中，任何复杂的电力系统都可以归纳为一下元件（参数）组成：1、发电机（注入电流或功率）2、负荷（注入负的电流或功率）3、输电线支路（电阻，电抗）4、变压器支路（电阻，电抗，变比）5、母线上的对地支路（阻抗和导纳）6、线路上的对地支路（一般为线路充电电容导纳）2.2用Kundur4机11节点来验算程序设定：Sb=100Mvar;Ub2=121KV;Ub1=10.5KV;Ub=110KV;Zb=Ub^