配电网潮流计算的拓扑分析研究

Analysis and study on topology for power flow of distribution network

为实现配电网自动化,配电网馈线装设各种开关设备。开关的不同状态使网络各支路潮流方向和大小发生变化。以矩阵方式建立配电网拓扑结构模型,从联络开关状态分析入手,建立弧矩阵结构来确定潮流变化,并以支路电流法为例给出潮流分析的基本方法。所提出的方法适用于通过联络开关连接的多个电源供电的复杂配电网潮流分析,具有一定的普遍意义。

Various switches are equipped along the feeder line of distribution network to realize distribution automation. Different switch states make the direction and quantities of power flow on some line become varied, that is what we call network re-constructed. This paper establishes topology construction model by way of matrixes. Analysis begins with connecting switch state, establishing arc matrix construction to determine the change of power flow. Basic method is given to explain howto analyze power flow based on the branch current method. The method proposed by this paper is suitable for analysis for complex distribution network power flow supplied by several sources and connected by connecting switches. This paper is of some significance.