负极接地光伏电站直流漏电流检测系统的改进  

Improvement of DC Leakage Current Detection System for Negative-Grounded Photovoltaic Station

作　　者：杨秦川 杨昀熹 YANG Qinchuan;YANG Yunxi(Shenzhen AVIC Sanxin Photovoltaic Engineering Co.,Ltd.,Shenzhen 518057,China)

机构地区：[1]深圳市中航三鑫光伏工程有限公司,广东深圳518057

出　　处：《电工技术》2025年第2期22-24,共3页Electric Engineering

摘　　要：针对采用逆变器直流侧负极接地技术的光伏系统,分析光伏系统的直流侧正负极短路及绝缘故障发生的特点,提出漏电检测方案,对接地检测系统进行技术改造,弥补原有系统接地故障检测功能不足的缺陷,提高光伏电站运行安全性。For the photovoltaic system using inverter DC side negative grounding technology,we analyze the characteristics of the DC side of the photovoltaic system of positive and negative short-circuit and insulation faults occurring,put forward the leakage detection program,the grounding detection system to carry out technological transformation,to make up for the defects of the original system of grounding fault detection function is insufficient,and to improve the safety of operation of photovoltaic power station.

关 键 词：光伏 负极接地逆变器 绝缘检测 漏电流 霍尔直流电流检测 

分 类 号：TM615[电气工程—电力系统及自动化]