分布式光伏并网对配电网电压分布及网损影响研究.pdfVIP

第14卷　 第4期 南京工程学院学报(自然科学版) Vol.14,No.4 2016年12 月 Journal of Nanjing Institute of Technology(Natural Science Edition) Dec. ,2016 　 　 doi:10.13960/ j.issn.1672-2558.2016.04.003 投稿网址:http:/ / 分布式光伏并网对配电网电压分布及网损影响研究 1 1,2 1 1 王浩宇 ,吕干云 ,蒋小伟 ,武　 阳 (1. 南京工程学院电力工程学院,江苏 南京211167; 2． 配电网智能技术与装备江苏省协同创新中心,江苏 南京211167) 摘　 要:为保证光伏并网后电网运行更具可靠性和经济性,对分布式光伏电源并网给配电网电压和网损带来的影 响进行研究.建立光伏并网系统模型,理论分析其对配电网网损和电压分布的影响,并通过Matlab/ Simulink平台进 行仿真,重点分析、对比配电网接入分布式光伏电源后,不同并网位置与接入容量对配电网电压和网损的影响.仿 真结果表明,合理选择配置光伏并网的位置与容量能够有效改善电压分布、降低系统网损. 关键词:光伏并网;配电网;电压分布;网损 中图分类号:TM727 The Influence of Distributed Photovoltaic Grid Connected Systems on Voltage Distribution And Power Loss in Distribution Systems 1 1∗,2 1 1 WANG Hao-yu , LÜ Gan-yun JIANG Xiao-wei , WU Yang (1. School of Electric Power Engineering, Nanjing Institute of Technology, Nanjing211167, China; 2. Jiangsu Collaborative Innovation Center of Smart Distribution Network, Nanjing Institute of Technology, Nanjing211167, China) Abstract:This paper studied the effects of distributed photovoltaic grid connected systems on voltage distribution and power loss in distribution systems to ensure the reliability of grid operationwhen photovoltaicwas connected. A model for photovoltaic grid connected systems was firstly established, and then the influence mechanism of photovoltaic grid connected systems on distribution systems was analyzed. Matlab/ Simulink was used to establish a model for distribution systems of IEEE33 bus. This paper also explored the