基于MATLAB的电力系统潮流计算_毕业设计论文.doc

河南城建学院本科毕业设计（论文） 摘要 PAGE PAGE 42 基于MATLAB的电力系统潮流计算 摘 要 潮流计算是电力系统最基本、最常用的计算。根据系统给定的运行条件、网络接线及元件参数，通过潮流计算可以确定各母线的电压（幅值及相角），各元件中流过的功率、整个系统的功率损耗等。潮流计算是实现电力系统安全经济发供电的必要手段和重要工作环节。因此潮流计算在电力系统的规划设计、生产运行、调度管理及科学研究中都有着广泛的应用。 本次设计的主要目的就是面向一般的电力网络，形成节点导纳矩阵，确定合适的算法，编写通用的计算程序，得到计算结果。设计中主要介绍了牛顿拉夫逊和PQ分解两种算法，PQ分解法虽然在结构上比牛顿法更加简化，但是针对一般网络现代计算机在存储空间及计算速度上已经十分强大，鉴于对牛顿法的熟悉与其算法的直观性，本次设计在编程时采用了牛顿拉夫逊法的直角坐标形式。解方程的过程利用Matlab的强大计算功能，编写M语言，合理设置变量，实现通用计算功能。 关键词: 电力系统，潮流计算，牛顿—拉夫逊法，Matlab。 河南城建学院本科毕业设计（论文） Abstract Abstract Power system load flow calculation is the most basic and commonly used calculations. Given according to the system operating conditions, the network connection and device parameters can be determined by power flow calculation of the bus voltage (magnitude and phase angle), the power flowing through the components, overall system power consumption and so on. Flow calculation is to achieve economic development of power system supply the necessary means and important part of the work. Therefore flow calculation in power system planning and design, production and operation, scheduling management, and scientific research have a wide range of applications. The main purpose of this design is for the general electricity network, the formation of the node admittance matrix, determine the appropriate method, the preparation of general-purpose computer program to get results. Introduces the design and the PQ decomposition Newton Raphson two algorithms, PQ decomposition although the structure is more streamlined than the Newton method, but for the general network of modern computer storage space and computing speed has been very strong, in view of the Newton Familiar with its intuitive algorithm, this design in programming using Newton Raphson polar form. The process of solving equations using matlab powerful computing capabilities, the preparation of M l