配电自动化的合环潮流算法研究

Research on closed loop power flow algorithm for distribution automation system

随着配电网规模的不断扩大,传统的合环转负荷潮流算法已无法适应现代大规模复杂配网对合环后系统潮流分布准确性的相关需求。本文基于前推回代和叠加定理的“两阶段法”,提出了一种新型合环转负荷潮流算法。该算法相较传统的前推回代法不仅可以对合环后的环网潮流进行计算,同时可以对合环点两端的负荷功率进行修正。MATLAB的仿真分析证实该算法可行。

As the scale of the distribution network expanding continuously,the traditional flow algorithm of closed-loop and load transformation power flow cannot meet the requirements of modern large-scale complex power system for the accuracy of the power flow distribution after the system loop closed.This paper proposes a new topology analysis algorithm based on the"twostage method"of forward push-back algorithm and superposition theorem.Compared with the traditional single algorithm,this algorithm can calculate the power flow of the ring network after the loop is closed,and can also modify the load power at both ends of the loop close point.The simulation analysis with MATLAB verifies that the algorithm is feasible.