Combined Active Islanding Detection Method for Grid-connected Photovoltaic System

WEI Quan; WANG Yifei; ZHU Jing; YIN Xiaogang; LIU Zhuang

doi:10.13296/j.1001-1609.hva.2014.10.031

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Combined Active Islanding Detection Method for Grid-connected Photovoltaic System

研究与分析 | 更新时间：2025-04-26

- Combined Active Islanding Detection Method for Grid-connected Photovoltaic System
- Combined Active Islanding Detection Method for Grid-connected Photovoltaic System
- 高压电器 2014年50卷第10期页码：37-42
- 作者机构：
  
  1. 1. Xi'an High Voltage Apparatus Research Institute Co., Ltd.
  2. Xi'an Jiaotong University
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.10.031
  中图分类号： TM464
- 纸质出版日期：2014
- 稿件说明：
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[1]WEI Quan,WANG Yifei,ZHU Jing,YIN Xiaogang,LIU Zhuang.Combined Active Islanding Detection Method for Grid-connected Photovoltaic System[J].高压电器,2014,50(10):37-42.

WEI Quan, WANG Yifei, ZHU Jing, et al. Combined Active Islanding Detection Method for Grid-connected Photovoltaic System[J]. High voltageapparatus, 2014, 50(10): 37-42.
[1]WEI Quan,WANG Yifei,ZHU Jing,YIN Xiaogang,LIU Zhuang.Combined Active Islanding Detection Method for Grid-connected Photovoltaic System[J].高压电器,2014,50(10):37-42. DOI： 10.13296/j.1001-1609.hva.2014.10.031.

WEI Quan, WANG Yifei, ZHU Jing, et al. Combined Active Islanding Detection Method for Grid-connected Photovoltaic System[J]. High voltageapparatus, 2014, 50(10): 37-42. DOI： 10.13296/j.1001-1609.hva.2014.10.031.

摘要

Unintentional islanding phenomenon has been one of the most important problems of gridconnected photovoltaic inverters. To prevent this phenomenon

all kinds of anti-islanding methods have been discussed. This paper presents a combined active islanding detection method

which consists of active frequency drift method and automatic phase-shift method. The traditional active anti-islanding methods of grid-connected PV inverters bear nondetection zone possibilities for certain paralleled RLC loads. The combined method shows islanding detection ability effectively

and it can eliminate nondetection zones even in the worst case conditions. Simulation in different load conditions is performed for verification.

Abstract

Unintentional islanding phenomenon has been one of the most important problems of gridconnected photovoltaic inverters. To prevent this phenomenon

all kinds of anti-islanding methods have been discussed. This paper presents a combined active islanding detection method

and it can eliminate nondetection zones even in the worst case conditions. Simulation in different load conditions is performed for verification.

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