基于MALAB的牛顿拉夫逊法潮流计算.doc

基于 MALAB 的牛顿拉夫逊法潮流计算 I 基于 MALAB 的牛顿拉夫逊法潮流计算摘要本文,首先简单介绍了基于在 MALAB 中行潮流计算的原理、意义,然后用具体的实例,简单介绍了如何利用 MALAB 去进行电力系统中的潮流计算。众所周知,电力系统潮流计算是研究电力系统稳态运行情况的一种计算,它根据给定的运行条件及系统接线情况确定整个电力系统各部分的运行状态:各线的电压、各元件中流过的功率、系统的功率损耗等等。在电力系统规划的设计和现有电力系统运行方式的研究中,都需要利用潮流计算来定量地分析比较供电方案或运行方式的合理性、可靠性和经济性。此外,在进行电力系统静态及暂态稳定计算时,要利用潮流计算的结果作为其计算的基础;一些故障分析以及优化计算也需要有相应的潮流计算作配合;潮流计算往往成为上述计算程序的一个重要组成部分。以上这些,主要是在系统规划设计及运行方式安排中的应用,属于离线计算范畴。牛顿-拉夫逊法在电力系统潮流计算的常用算法之一,它收敛性好,迭代次数少。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,最后介绍了利用 MTALAB 程序运行的结果。关键词:电力系统潮流计算,牛顿-拉夫逊法, MATLAB 基于 MALAB 的牛顿拉夫逊法潮流计算 II ABSTRAC T This article first introduces the flow calculation based on the principle of MALAB Bank of China, meaning, and then use specific examples, a brief introduction, how to use MALAB to the flow calculation in power systems. As we all know, is the study of power flow calculation of power system steady-state operation ofa 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 ponents power, system power loss and soon. In power system planning power system design and operation mode of the current study, are required to quantitatively calculated using the trend analysis parison 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 e 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 monly used method, it is good convergence of the iteration number of small, introduce the trend puter-aided power system analysis of the basic