Elastic-net变量选择及其在配网投资决策中的应用  

Elastic-net variable selection and its application to the distribution network investment decision

作　　者：罗婷 刘小惠[1] 程宏波 LUO Ting;LIU Xiaohui;CHENG Hongbo(School of Statistics,Jiangxi University of Finance and Economics,Nanchang 330013,China;School of Electricaland Automation Engineering,East China Jiaotong University,Nanchang 330013,China)

机构地区：[1]江西财经大学统计学院,江西南昌330013 [2]华东交通大学电气与自动化工程学院,江西南昌330013

出　　处：《电力系统保护与控制》2021年第23期80-87,共8页Power System Protection and Control

基　　金：国家自然科学基金面上项目资助(11971208);江西省重点研发计划项目资助(20202BBEL53008);江西财经大学学生科研课题资助(20210915090654450)。

摘　　要：基于配网历史建设情况筛选重要指标进行针对性的精准投资是提升配网建设效果的有效手段。使用多源融合技术对配网不同系统的建设及运行数据进行融合,利用文本数据抽取技术对项目建设记录进行结构化转换。采用Elastic-net对所提取的指标数据进行筛选,基于BIC准则对Elastic-net的参数进行优化选取,得到项目建设指标的重要性排序。根据重要性排序结果建立配网建设投资决策模型。不同投资决策方案的对比分析表明,所提投资决策模型建设效果更有针对性,可实现配网项目建设的精准投资。Screening important indices based on the historical construction of a distribution network to make targeted and precise investment decisions is an effective way of improving the effectiveness of network construction.This paper uses multi-source fusion technology to integrate the construction data and run data of different systems in the distribution network,and uses textual data extraction technology to structurally transform the project construction record.The extracted data can be screened based on an Elastic-net and the parameters of the Elastic-net are optimized based on the BIC criterion.In this way,the importance ranking of construction indices is obtained.From this ranking a distribution network construction investment decision-making model is established.The comparative analysis of different investment decision-making schemes shows that the construction effect of the proposed model is more pertinent,and can achieve precise investment in the construction of distribution network projects.

关 键 词：配网建设 精准投资 多源数据融合 Elastic-net 重要性排序 

分 类 号：F407.61[经济管理—产业经济] TM73[电气工程—电力系统及自动化]