基于K-均值聚类的典型场景配电网动态无功优化  

Typical scenario power distribution network′s dynamic reactive power optimization based on K-means clustering

作　　者：武晓朦 刘欣雨 苏成果 吴同 WU Xiaomeng;LIU Xinyu;SU Chengguo;WU Tong(Key Laboratory of Shaanxi Province for Gas-Oil Logging Technology,School of Electronic Engineering,Xi’an Shiyou University,Xi’an 710065,China;Dalian Branch,Research Institute of Safety&Environment Protection Technology,CNPC,Dalian 116031,China;Shaanxi Branch,CNPC Gas Marketing,Xi’an 710000,China;Shenyang Power Supply Company,State Grid Liaoning Electric Power Supply Co.,Ltd.,Shenyang 110000,China)

机构地区：[1]西安石油大学电子工程学院陕西省油气井测控技术重点实验室,陕西西安710065 [2]中国石油集团安全环保技术研究院有限公司大连分院,辽宁大连116031 [3]中国石油天然气销售陕西分公司,陕西西安710000 [4]国网辽宁省电力有限公司沈阳供电公司,辽宁沈阳110000

出　　处：《现代电子技术》2021年第11期151-154,共4页Modern Electronics Technique

基　　金：陕西省科技计划基础研究项目(2021JM-404);陕西省教育厅科研计划重点项目(18JS094);西安石油大学研究生创新与实践能力培养项目(YCS18213078)。

摘　　要：为了能够根据一条10 kV线路全年负荷变化的实际情况,模拟在负荷变化下动态无功优化的处理情况,以投资收益最高为目标函数,并采用罚函数对节点电压越限加以约束,建立一个同时考虑系统经济性和安全性的综合数学模型。对某地区全年的负荷变化样本进行聚类分析和典型场景构建。在此基础上,采用蚁群算法进行动态无功优化计算,确定了最优补偿方案。采用IEEE 33标准节点系统进行验证,仿真结果表明,配电网动态无功优化的综合运行成本更低、网络损耗更小、电压更稳定。In order to simulate the dynamic reactive power optimization in the situation of the load change according to the annual load change of a 10 kV transmission line,a comprehensive mathematical model considering both the system economy and safety is established by taking the highest investment return as the objective function and adopting the penalty function to restrict the node voltage overrun.The load change samples in a certain area in a whole year are subjected to cluster analysis and typical scenario construction.On this basis,the ant colony algorithm is used for dynamic reactive power optimization calculation,so that the optimal compensation scheme for reactive power optimization of the power distribution network is determined.The IEEE 33 standard node system is adopted to verify the compensation scheme.The simulation results show that the comprehensive operation cost of the dynamic reactive power optimization of the power distribution network is low,its network loss is small and its voltage is stable.

关 键 词：动态无功优化 配电网 K-均值聚类算法 典型场景 场景分析 规划优化 有功损耗 

分 类 号：TN99-34[电子电信—信号与信息处理] TM714.3[电子电信—信息与通信工程]