【正文】 2 電力系統(tǒng)穩(wěn)態(tài)分析 3 中國(guó)期刊網(wǎng)論文 4 英文文獻(xiàn) 5 matlab 編程 指導(dǎo)教師： 鄧立華 ， 2020 年 12 月 6 日 學(xué)生姓名： 鄒愛龍 ，專業(yè)年級(jí)： 2020 級(jí) 系負(fù) 責(zé)人審核意見（ 從選題是否符合專業(yè)培養(yǎng)目標(biāo)、是否結(jié)合科研或工程實(shí)際、綜合訓(xùn)練程度、內(nèi)容難度及工作量等方面加以審核 ）： 系負(fù)責(zé)人簽字： ， 年 月 日 IV 摘要 電力系統(tǒng)的潮流計(jì)算在電力系統(tǒng)穩(wěn)態(tài)分析和電力系統(tǒng)設(shè)計(jì)中有很重要的作用，潮流計(jì)算也是電力系統(tǒng)暫態(tài)分析的基礎(chǔ)。本文主要介紹了節(jié)點(diǎn)導(dǎo)納矩陣的形成方法。本文詳細(xì)介紹了高斯 —— 賽德爾法和牛頓 —— 拉夫遜法迭代計(jì)算的過程。 關(guān)鍵字 ：潮流計(jì)算，節(jié)點(diǎn)導(dǎo)納矩陣，牛頓 —— 拉夫遜，高斯 —— 賽德爾， Matlab V Abstract Power flow calculation has a very important role in power system steadystate analysis and power system design, and it is also the basis of transient analysis in power system. Flow calculation is based on given conditions of the power system and calculates the operational status of every part of the system, including voltage and power. So far, there are kinds of algorithm which use the electronic puter in power flow calculation, the most widely used algorithm is the Newton Raphson power flow calculation method. Before we the puter in power flow calculation, we need to need to have the nodes of the work classified and numbered and establish a mathematical model of power work, namely the power system work equations. This paper describes the formation of the node admittance matrix . In the formation of the node admittance matrix, we need to transform the power work to equivalent circuit, which includes transformation of transmission lines and transformers. The Newton Raphson power flow calculation has a relatively high demand for a given initial value. So before the Newton Raphson iteration, we use Gauss Seidel iterative method to produce a more precise initial value. This paper describes the process of Gauss Seidel and Newton Raphson iteration. The main contents are the establishment of iterative equation, the calculation of Jacobian matrix and the calculation of power and voltage, as well as how to deal with the situation when a PV node transform to a PQ node iteration use the Matlab programming language as development tools, the input and output of the data process in the Excel spreadsheets. In this paper, we utilize a system contains 5 nodes to analyze , the result of the calculation by the Matlab program shows that the algorithm is convergence and practice. Key Words： Power flow calculation， node admittance matrix， Newton – Rap son， Gauss – Seidel， Matlab. VI 目 錄 第一章 緒論 .................................................................................................................. 1 一、 電力系統(tǒng)潮流計(jì)算的背景及意義 ................................................................ 1 二、 潮流計(jì)算的發(fā)展歷史及現(xiàn)狀 ........................................................................ 2 三、 潮流計(jì)算的發(fā)展趨勢(shì) .................................................................................... 4 四、 本文主要工作 ................................................................................................ 5 第二章 電力網(wǎng)絡(luò)的 數(shù)學(xué)模型 ...................................................................................... 6 一、 節(jié)點(diǎn)電壓方程 ................................................................................................ 6 二、 節(jié)點(diǎn)導(dǎo)納矩陣的形成 .................................................................................... 7 （一） 輸電線路的等值電路 ........................................................................ 7 （二） 變壓器的等值電路 ............................................................................ 8 （三） 節(jié)點(diǎn)導(dǎo)納矩陣的計(jì)算 ...................................................................... 9 第三章 電力系統(tǒng)的潮流計(jì)算 .................................................................................... 11 一、 迭代法簡(jiǎn)介 .................................................................................................. 11 二、 高斯 —— 賽德爾潮流計(jì)算 .......................................................................... 11 （一） 功率方程和變量、節(jié)點(diǎn)的分類 ...................................................... 12 （二） 高斯 —— 賽德爾潮流計(jì)算 .............................................................. 16 （三） 算例分析 .......................................................................................... 21 三、 牛頓 —— 拉夫遜潮流計(jì)算 .......................................................................... 24 （一） 牛 頓 —— 拉夫遜法簡(jiǎn)介 .................................................................. 24 （二） 潮流計(jì)算時(shí)的修正方程 .................................................................. 26 （三） 算例分析 .......................................................................................... 31 第四章 實(shí)例分析與程序設(shè)計(jì) .................................................................................... 34 一、 輸入數(shù)據(jù)和輸出數(shù)據(jù) .................................................................................. 35 （一） 輸入數(shù)據(jù) .......................................................................................... 35 （二） 輸出數(shù)據(jù) .......................................................................................... 36 二、 數(shù)學(xué)模型計(jì)算 .................................................