配电网潮流前推回代法的一种简单实现方法

A Simple Implement Method of Back/forward Sweep Distribution Power Flow

针对以往的前推回代实现方法需要复杂的节点和支路分层编号,导致算法复杂,程序效率低下等问题,根据配电网络的特点,通过构造特殊的节点与支路数据结构,形成配电网络对应的树结构,完全确定配电网络拓扑结构。通过对树的后序遍历回代修正节点电流,对树先序遍历前推修正节点电压,不断迭代直至收敛,形成一种实用的配电网潮流计算方法,分析表明该方法无需复杂的网络编号、不用形成导纳矩阵。算例表明该方法编程简单、结果精确。

To resolving the problem of algorithmic complexity and low efficiency in the implement method of back/forward sweep algorithm formerly. On the basis of analyzing the techniques for power flow calculations of distribution network, the topology structure of distribution network is defined by the tree structure which consisted of special circuit branch structure and node structure.Correcting branch currents by postorded-traversing the tree structure and correcting nodal voltages by preorder-traversing the tree structure until constringency. There is no need to number the distribution network and to form admittance matrix in this implement method. The validity and accuracy of the implement method above is verified through analysis and the 33-bus system example.