基于LASSO及其补充规则的配电网拓扑生成算法

为解决配电网拓扑不易监测的问题,提出了一种新型的智能配电网拓扑生成方法.首先利用最小绝对值收敛和选择算法（LASSO）得到配电网母线间的关联系数矩阵,然后通过逻辑"and"规则和基于电压关联分析模型的补充判据修正矩阵,最后基于修正后的电压关联系数矩阵生成配电网的拓扑结构.仿真实验结果表明,算法无需利用任何配电网的先验知识,仅基于时序电压数据即可高效准确地生成无环和有环的配电网拓扑.算法可作为监测实际运行配电网拓扑的辅助决策方法.

Distribution Network Topology Generation Algorithm Based on LASSO and Its Supplementary Rules

In order to solve the problem that the distribution network topology is difficult to monitor, a novel data driven algorithm is proposed to generate the distribution network topology. Firstly, the least absolute shrinkage and selection operator (LASSO) algorithm is adopted to obtain the correlation coefficient matrix of all buses in the network. Then, the "and" logic rule and the criteria based on the voltage correlation analysis model are utilized to correct the matrix. Finally, the topology is reconstructed based on the modified matrix. Simulation results show that the proposed algorithm can efficiently and accurately generate the un-loopy and loopy distribution network topology based on timing voltage data without using any prior knowledge of distribution network. The algorithm could be employed as an auxiliary decision-making method to generate the operational distribution network topology.