一种电力网络潮流计算的综合算法

针对牛顿-拉夫逊法对初值要求严格,迭代速度快的特点,利用电力网的结构特点,使用高斯-塞得尔迭代法的第一次迭代结果作为牛顿-拉夫逊法的计算初值。这样既解决了牛顿-拉夫逊法对初值要求高的问题,又提高了收敛速度。计算结果表明,综合算法在迭代次数和收敛速度上有优势。

A colligate algorithm for load flow calculation in power system

Newton-Raphson method and Gauss-Sederal method are two ways for load flow calculation in power system.Accurate required initial values and high speed iteration are two characters of Newton-Raphson method while the calculating speed of Gauss-Seidel method is slow due to its linear conver-gence.According to the structural properties of power system,a colligate algorithm is proposed in which the load flow results of the first iteration obtained by Gauss-Seidel method are used as the initial values of Newton-Raphson method.Not only can it figure out the question of requestion of accurate initial val-ues,but also shorten the calculating time.A numerical example is given to illustrate the effectiveness of the presented method.