支路重载型潮流算法的研究

在牛顿-拉夫逊法的基础上提出了一种支路重载型潮流算法。这种算法对于变压器和线路等支路采用统一的反映支路自身参数的对称电路模型,可以直接用支路自导纳进行支路功率的计算和雅可比矩阵元素的求取,不需要专门再构建节点导纳矩阵。这种算法可以用来计算变压器的变比,特别适用于线路参数估计、变压器分接头估计。该算法对迭代过程中的修正方程式进行了大量的简化,使计算过程变得简单快速。详细地阐述了这种算法的处理策略,最后将它与牛顿-拉夫逊法进行了收敛程度和收敛速度的比较,结果令人满意。

Research on branch congruency power flow algorithm

A branch-congruency power method is presented, based on improved Newton-Raphson power flow algorithm. Both transformer and branch line adopted to circuit symmetric model which reflect shunt in this algorithm, can use the branch self-admittance to calculate electrical power and current based on node power and elementary of Jacobion matrix. Much work is done in order to reduce iterative times. The method could also calculate the transformation ratio, in particular be true of line parameter and the transformer tap. Compared Newton-Raphson algorithm with the convergence and rate, the paper proposes calculation process in detail and obtain satisfied results.