低压分布式光伏并网对配电网网损的影响研究  

Influence of Low-voltage Distributed Photovoltaic Grid Connection on Distribution Network Loss

作　　者：侯永全 张勇 袁朋生 HOU Yongquan;ZHANG Yong;YUAN Pengsheng(Peixian Power Supply Branch Company,State Grid Jiangsu Electric Power Co.,Ltd.,Peixian 221600,Jiangsu,China;Jiangsu Guangshi Electric Co.,Ltd.,Xuzhou 221116,Jiangsu,China)

机构地区：[1]国网江苏省电力有限公司沛县供电分公司,江苏沛县221600 [2]江苏广识电气有限公司,江苏徐州221116

出　　处：《能源与节能》2023年第5期47-50,共4页Energy and Energy Conservation

摘　　要：为保证光伏并网后电网运行的可靠性和经济性,需要分析、研究分布式光伏电源并网后给配电网网损带来的影响。在MATLAB/Simulink中搭建A台区配电网模型,经过理论推导与仿真分析,探讨注入容量、接入位置、光伏数量以及变压器型号不同时对配电网网损的影响,并且模拟了三相负荷不平衡时网损的变化情况。根据仿真结果,初步制定了相应的降损措施。In order to ensure the reliability and economy of the grid operation after PV grid connection,it is necessary to analyze and investigate the impact of distributed PV power sources on the distribution grid network loss after grid connection.The distribution network model of A station was built in MATLAB/Simulink.Through theoretical derivation and simulation analysis,the influence of different injection capacity,access location,photovoltaic quantity and transformer model on the distribution network loss was discussed,and the change of network loss was simulated when three-phase load was unbalanced.According to the simulation results,the corresponding loss reduction measures were preliminarily formulated.

关 键 词：分布式光伏 并网 配电网 网损 

分 类 号：TM619[电气工程—电力系统及自动化]