光伏接入配网弱馈线路过电流保护自适应优化方法  

Adaptive Optimization Method for Overcurrent Protection of Weak Feedback Lines in Photovoltaic Access Distribution Network

作　　者：焦庆涛 JIAO Qingtao(Guodian Nanrui Nanjing Control System Co.,Ltd.,Nanjing,Jiangsu 211106,China)

机构地区：[1]国电南瑞南京控制系统有限公司,江苏南京211106

出　　处：《自动化应用》2024年第15期162-164,共3页Automation Application

摘　　要：由于光伏接入配网弱馈线路过电流保护动作时间较长,无法获得理想保护效果,因此设计了一种光伏接入配网弱馈线路过电流保护自适应优化方法。首先分析弱馈线路的阻抗特性,生成弱馈线路的关联阻抗矩阵,然后以此为基础,构建过电流保护的自适应优化模型,最终,通过优化电流保护方法,实现了自适应保护。结果表明,应用所提方法,其动作时间更短,应用效果较好。Due to the long action time of the current feeder,the ideal protection effect cannot be obtained,so an adaptive optimization method of current protection passing by the weak feeder of the photovoltaic access distribution network is designed this time.Firstly,the impedance characteristics of the weak feed line are analyzed,and the correlation impedance matrix of the weak feed line is generated.Then,based on this,the adaptive optimization model of overcurrent protection is constructed.Finally,the adaptive protection is realized by optimizing the current protection method.The results show that the action time is shorter and the application effect is better.

关 键 词：光伏配网 弱馈线路 过电流保护 自适应优化 

分 类 号：TM771[电气工程—电力系统及自动化]