配电网络潮流计算的递推算法

给出配电网潮流计算的递推算法，为变结构网络(网络重构、新增节点线路等)的潮流计算提供了有效的计算工具。该算法以原系统潮流为基础计算增加节点、线路后新网络的潮流，其间不需要迭代计算，只需对网络进行化简、等值和递推计算。该算法先将复杂网络简化，并在网络其他部分的电压、功率、电流保持不变的条件下实现负荷的转移，从而将复杂网络等值为3节点系统；利用简化系统的潮流、电源点电压，即可得到新网络的潮流。实例研究表明，该算法有较高的计算精度和较快的计算速度，证实了算法的有效性和正确性。

RECURSIVE LOAD FLOW ALGORITHM FOR ELECTRIC DISTRIBUTION NETWORKS

This paper presents a recursive load flow algorithm for radial electric distribution networks (EDN). The proposed approach is suitable for solving the EDN with changeable structure, such as network reconfiguration and network expansion. Based on the primary case the approach solves load flow of an expanded/changed EDN without iterating calculation. The solving processes involve in network simplifying, equivalent and recursive calculation. During the equivalent process it transfers the loads using the simplified EDN and ensures the unchanging for voltages, currents and powers of other parts. So the expanded/changed EDN can be simplified and equivalent as a three nodal EDN. The load flow of an expanded EDN is solved, using the simplified and equivalent EDN and the voltage of energy source. The developed algorithm has been tested on a number of systems and the results show the fast computation speed, effectiveness and applicability of the approach.