摘要正如为我们所知道的,电力系统潮流计算是为了研究电力系统稳态运行的一种计算,根据给定的运行条件、系统接线情况等来确定整个系统各部分的运行状态:母线的电压、节点的功率以及系统的功率损耗等等。在电力系统规划的设计中、运行方式的研究中都需要利用潮流计算以便分析比较供电方案和运行方式的可靠性以及经济性,以及研究设计是否合理。
此外,当进行电力系统静态以及暂态稳定计算时,也要利用潮流计算的结果作为其计算的基础;一些故障分析和优化计算也需要有相应的潮流计算作为配合;潮流计算通常成为上述计算程序的一个非常重要的组成部分。以上的这些,主要是在系统规划设计以及运行方式安排中的应用,通常属于离线计算范畴。
由于牛顿-拉夫逊法的收敛性好且迭代次数少,故成为常用的算法之一。本文介绍了电力系统潮流计算机辅助分析的基本知识及潮流计算牛顿-拉夫逊法以及P-Q分解法,最后介绍了如何使用PSD—BPA潮流计算软件。
毕业论文关键词: 电力系统潮流计算 牛顿-拉夫逊法 P-Q分解法 PSD—BPA潮流计算
Abstract
As we all know, is the study of power flow calculation of power system steady-state operation of a calculation, which according to the given operating conditions and system wiring the entire power system to determine the operational status of each part: the bus voltage flowing through the components power, system power loss and so on. In power system planning power system design and operation mode of the current study, are required to quantitatively calculated using the trend analysis and comparison of the program or run mode power supply reasonable, reliability and economy.
In addition, during the power system static and transient stability calculation, the results of calculation to take advantage of the trend as its basis of calculation; number of fault analysis and optimization also requires a corresponding flow calculation for cooperation; power flow calculation program often become the an important part. These, mainly in the way of system design and operation arrangements in the application areas are off-line calculation.
Newton - Raphson power flow calculation in power system is one commonly used method, it is good convergence of the iteration number of small, introduce the trend of computer-aided power system analysis of the basic knowledge and power flow Newton - Raphson method and P-Q decomposition, introduced by the last how to use The PSD-BPA power flow calculation.
Keywords: power system flow calculation Newton-Raphson method P-Q decomposition PSD-BPA power flow calculation.
目 录
摘 要 I
ABSTRACT II
1 电力系统潮流计算的计算机算法 1
1.1 潮流计算的数学模型 1
1.1.1 潮流计算的定解条件 1
1.1.2 潮流计算的约束条件 3
1.2 牛顿—拉夫逊法潮流计算 4
1.2.1 牛顿—拉夫逊法的基本原理 4
1.2.2节点电压用直角坐标表示时的牛顿—拉夫逊法潮流计算 8
1.3 P-Q分解法潮流计算 12
2 PSD电力系统分析软件工具 13
2.1 PSD电力系统分析软件概述 13
2.1.1 系统的结构 14
2.1.2 计算平台的功能及性能 15
2.1.3 计算平台的特点和使用 15
2.2 PSD—BPA潮流程序简介 15
2.3 BPA潮流程序常用控制语句的使用方法 16
2.3.1 常用控制语句的说明 16 基于BPA的电力系统潮流计算:http://www.751com.cn/zidonghua/lunwen_37522.html