面向分布式光伏并网的自适应距离保护策略  

Adaptive Distance Protection Strategy for Distributed Photovoltaic Grid Connection

作　　者：张钰 王娜 王鹏飞 戴建华 潘功银 马梦真 ZHANG Yu;WANG Na;WANG Pengfei;DAI Jianhua;PAN Gongyin;MA Mengzhen(Baotou Power Supply Company,Inner Mongolia Power(Group)Co.,Ltd.,Baotou 014030,China)

机构地区：[1]内蒙古电力(集团)有限责任公司包头供电公司,内蒙古包头014030

出　　处：《机械与电子》2024年第3期8-11,共4页Machinery & Electronics

基　　金：内蒙古电力(集团)有限责任公司科技资助项目(2023142023-5-8)。

摘　　要：为解决光伏并网给电网带来的保护问题,提出基于自适应距离保护的含光伏系统保护模型。论证了含有光伏电站的系统距离保护测量阻抗参数测算,利用仿真分析验证了所提模型的有效性,说明在该机制下,系统不受光伏参数的影响,能够有效解决过渡电阻对距离保护影响较大的问题,提升保护系统的鲁棒性。In order to solve the protection problem brought by photovoltaic grid-connected to the power grid,a protection model with photovoltaic system based on adaptive distance protection is proposed.The calculation of the distance protection parameters of the system containing photovoltaic power plants is demonstrated,and the validity of the model proposed in this paper is verified by simulation analysis.It shows that under the mechanism studied in this paper,the system is not affected by photovoltaic parameters and can effectively solve the problem that the transition resistance has a great influence on the distance protection and improves the robustness of the protection system.

关 键 词：光伏发电 自适应距离保护 光伏并网 继电保护 

分 类 号：TM615[电气工程—电力系统及自动化]