电力系统暂态分析课程设计--基于MATLAB的电力系统复杂潮流分析

电力系统稳态分析课程设计 题 目基于 MATLAB 的电力系 统 复杂潮流分析 学生姓名 学 号 专 业电气工程及其自动化 班 级 指导教师 2 摘要摘要 电力系统潮流计算是电网分析的基础应用， 是对复杂电力系统正常和故障条 件下稳态运行状态的计算。给定电力系统的网络结构、参数和决定电力系统运行 状况的边界条件，确定电力系统运行的方法之一是朝流计算。 MATLAB 是一种交互式、面向对象的程序设计语言，广泛应用于工业界与 学术界， 主要用于矩阵运算 采用迭代法， 通过建立矩阵的修正方程来依次迭代， 逐步逼近真值来计算出电力网的电压，功率分布。 PQ 分解法是极坐标形式牛顿-拉潮流计算的一种简化计算方法， 。 PQ 分解 法通过对电力系统具体特点的分析， 对牛顿法修正方程式的雅可比矩阵进行了有 效的简化和改进。由于这些简化只涉及修正方程式的系数矩阵，并未改变节点功 率平衡方程和收敛判据，因不会降低计算结果的精度。 用手算和计算机算法对其进行设计。使用 MATLAB 软件进行编程，在很大 程度上节省了内存，减少了计算量。通过对本题计算我们了解了一些工程计算和 解决工程问题的方法。 关键词潮流计算，PQ 分解法，MATLAB Electrical power system complex tidal current analysis 3 based on MATLAB Power Flow Analysis Grid computing is the basis of applications, the complex power system under normal and fault conditions for the calculation of steady state operation. Given the power system network structure, parameters and decisions operation of the power system boundary conditions, to determine the of operation of the power system is one of North Korea flow calculation. MATLAB is an interactive, object-oriented programming language, widely used in industry and academia, mainly for matrix calculation. Using iteration, the amendment through the establishment of matrix iterative equation to turn, gradually moving towards a true value to calculate the voltage electricity grid, power distribution. PQ decomposition is the of polar coordinates Newton - the widening trend of a simplified calculation . P-Q decomposition adopted by the specific characteristics of the power system analysis, Newtons Law of the Jacobian matrix ula has effectively simplified and improved. As a result of these simplified ula that involves only the coefficient matrix, the balance of power has not changed node equations and the convergence criterion, because the results will not reduce the accuracy. Use MATLAB software programming, saving memory to a large extent, reduce the amount of computation. By this calculation we understand that a number of enginee