Passive Islanding Detection Method Based on Harmonic Voltage and Fundamental Frequency

被引：0

作者：

Chen Y. ^{[1
]}

Tang G. ^{[1
]}

Wang S. ^{[2
]}

Chen X. ^{[1
]}

Wang X. ^{[3
]}

Zhang Y. ^{[4
]}

机构：

[1] NARI Group Corporation, State Grid Electric Power Research Institute, Nanjing

[2] School of Automation, Nanjing University of Science and Technology, Nanjing

[3] State Grid Ningxia Electric Power Co. Ltd., Yinchuan

[4] State Grid Liaoning Electric Power Co. Ltd., Shenyang

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2019年 / 43卷 / 14期

基金：

国家重点研发计划;

关键词：

Fundamental frequency; Harmonic voltage; Islanding detection; Photovoltaic power station;

D O I：

10.7500/AEPS20180914003

中图分类号：

学科分类号：

摘要：

The existing passive islanding detection methods of independent anti-islanding protection device in photovoltaic power station have a large non-detection zone, and the frequency criterion is unable to distinguish between the power grid low frequency and the islanding low frequency. This paper proposes a new passive islanding detection method based on the harmonic voltage at point of common coupling (PCC) and the fundamental frequency. Firstly, the method is theoretically analyzed and the anti-misoperation measures are designed. Secondly, the method is simulated and validated under several conditions of islanding and grid-connected modes. Finally, the effectiveness of this method is verified by actual islanding data. The results show that the method is simple and reliable, which can not only narrow the non-detection zone, but also distinguish between the power grid low frequency and the islanding low frequency. © 2019 Automation of Electric Power Systems Press.

引用

页码：200 / 206

页数：6

共 21 条

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