文档介绍：摘要

随着分布式电源技术的不断发展,分布式电源将对传统的电力系统产生很大
影响。越来越多的分布式电源并入到电力系统中,对并入分布式电源后的电力系
统的分析成为一个很重要的问题,而解决这一问题首先需要对其进行稳态分析,
潮流计算正是稳态分析最重要的组成部分之一。
本文主要研究含分布式电源的潮流计算,文中首先介绍了分布式发电的概念
和意义、电力系统潮流计算的意义。然后详细给出了潮流计算方法之一的牛顿—
拉夫逊法潮流计算原理,包括导纳阵的生成、雅可比矩阵的形成、用高斯消元法
求解修正方程。并分析了分布式电源应该采用的等效电路模型。最后采用
VC++,使用C++语言实现牛顿—拉夫逊法算法,给出用C++编写的潮
流计算程序,并用实际算例对该程序进行验证。在此基础上,采用将分布式电源
等效为PQ节点,首先将其视为理想PQ电源,然后将其视为PQ电源加等效阻抗,
采用此程序并对该等效电力系统模型进行编程分析,得到系统各支路的潮流分布
和各节点的节点电压。
关键词:分布式电源;潮流计算;牛顿—拉夫逊法;C++;
ABSTRACT

Along with the steady progress achieved in DG(Distributed Generation),DG
can offer a novel solution on work. More and more power system introduce
distribumd resources. However, systematic analysis of the accession has e a
very important issue, solution this problem needs to be steady-state analysis of power
system, flow calculation is the most important part of the steady-state analysis.
In this paper, the main trend of the distribumd resources power flow, introduces
the concept of distributed generation and the significance meaning of power flow
calculation. Paper deeply illustrates the power flow calculation one of methods
Newton-Raphson power flow, including the admittance matrix formation, the
formation of the Jacobian matrix, Gaussian elimination method with a modified
equation. Analysis of distributed power should be used in the equivalent circuit model.
In this paper, VC++ development tools, using C++ programming language to
realize Newton-Raphson algorithm, given using C ++ power flow calculation program
and the program running instance. On this basis, adding The adoption of distributed
power equivalent to PQ node. Above all, be regarded as an ideal power PQ. Then add
the equivalent impedance of power as PQ. Using this procedure and the equivalent
power system model to analyze, using C++ programming language, access to the
system's current distribution and the node voltage.
Key words: distribumd resources; power flow ; Newto