电瓷避雷器Issue(6)：20-27,8.DOI:10.16188/j.isa.1003-8337.2023.06.003
分布式光伏系统接入配电线路感应过电压特性分析
Induced Overvoltage Characteristics for Distributed Photovoltaic Systems Connected to Distribution Lines
摘要
Abstract
Lightning induced overvoltage is the main cause of active distribution system faults,and stud-ying the induced overvoltage characteristics of distributed photovoltaic systems connected to distribution lines is of great significance.A calculation model for induced overvoltage of a distributed photovoltaic sys-tem connected to a 10 kV distribution line was established in ATP.The variation patterns of induced overvoltage on the distribution line side and photovoltaic side were calculated when lightning strikes active distribution lines at different positions,and corresponding lightning protection configuration optimization strategies were proposed.The results indicate that when lightning strikes the ground near the transmission line tower,the induced overvoltage generated on the line will affect the stable operation of the photovolta-ic system;When lightning strikes the metal frame of the photovoltaic array,it will not affect the distribu-tion line;When installing lightning arresters and SPDs on the high and low voltage sides of grid connected transformers,the transformer and photovoltaic side equipment are not affected by induced overvoltage on the distribution line side.关键词
分布式光伏/ATP/感应过电压/有源配电网/防雷保护策略Key words
distributed photovoltaic/ATP/induced overvoltage/active distribution network/lightning protection strategy引用本文复制引用
柴辰,何一川,林敢,周春天,黎鹏..分布式光伏系统接入配电线路感应过电压特性分析[J].电瓷避雷器,2023,(6):20-27,8.基金项目
国网江苏省电力公司科技项目(编号:SGJSNJ00KHJS2201221).Project supported by Scientific and Technology Project of Jiangsu Power Grid Co.,Ltd.(No.SGJSNJOOKHJS2201221). （编号:SGJSNJ00KHJS2201221）
