摘要电力系统中潮流计算是一项最基本、常用的计算。在电力系统中可以进行非 常关键的分析，起到着关键的作用。潮流计算可以对故障问题进行分析，对继电 保护装置进行整定，分析系统的安全性。通过计算就可以得到线路的电压、幅值、 相角、功率及功率损耗等，同时可以计算复杂的电力系统正常和故障条件下的运 行状态。此外，潮流计算已经成为电力系统的经典的分析方法。在研究设计电力 系统的规划和系统的运行状态过程中，比较供电的方案以及系统运行状态的合理 性，可靠性和经济型，需要使用电力系统潮流计算。在正常工作的电力系统中， 需要进行潮流分析时，可以使用牛顿拉夫逊法来进行计算。72246

本文介绍电力系统计算机算法进行辅助分析潮流的基本方法，了解潮流计算 的几种运算方法，主要使用牛顿法进行复杂系统的潮流计算，通过程序的设计可 以对系统进行计算，得到整个电力系统的每一部分的运行状态：电压、功率、功 率损耗等。本次主要采用 MATLAB 软件进行程序的设计，对系统进行仿真设计， 利用 MATLAB 的高速计算能力，得出结论，同时对结论进行理论分析。运用 MATLAB 语言进行编程来分析和仿真，可以很清楚的看出系统的稳态特性，同 时验证 MATLAB 在潮流计算中的作用。

该论文有图 10 幅，表 6 个，参考文献 18 篇。

毕业论文关键词：电力系统潮流计算 牛顿—拉夫逊法潮流计算 MATLAB

Program Design for Power Flow Calculation of Power System

Abstract Power flow calculation in power system is a basic and common operation。 In the power system can be very critical analysis, play a key role。 The power flow calculation can be used to analyze the fault problem, and the relay protection device can be adjusted, and the security of the system is analyzed。 Through the calculation can be obtained with the line voltage, amplitude, phase and power and power loss are, and can calculate the running state of complex power system under both normal and fault conditions。 In addition, power flow calculation has become the classic analysis of power systems。 In the research and design of power system planning and operation state of the system, in the comparison of power supply scheme and  the  system running state of rationality, reliability and economy, need to use power flow calculation。 In the normal operation of the power, the need to analyze the trend, the general situation is to use Newton Ralphson to calculate。

This paper introduces algorithm of power system computer aided the trend analysis method, understand the several power flow calculation algorithm, using Newton method for complex system power flow calculation, through program design can the system operation, each part of the operation state of the whole power system: voltage, power, power loss。 This time mainly uses the MATLAB software to carry on the program design, carries on the simulation design to the system, uses the MATLAB high speed computing power, draws the conclusion, simultaneously carries on the theoretical analysis to the conclusion。 The use of MATLAB language programming to analyze and simulation, it can be very clear that the steady-state characteristics of the system, while verifying the role of MATLAB in power flow calculation。

Keywords: power flow calculation Newton Raphson power flow calculation MATLAB

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摘 要 I

Abstract II

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