基于电压相角正反馈法的主动式光伏并网孤岛检测

针对分布式并网发电系统孤岛效应问题,研究一种基于逆变器端的光伏发电系统的主动式孤岛检测方法。将公共连接点（PCC）处的电压相角变化作为试验检测方法中的反馈量。在孤岛发生时,有效打破逆变器输出和负载之间的功率平衡,通过检测逆变器输出电压、频率变化,快速判断孤岛的发生。根据UL 1741标准中的技术规范,通过MATLAB软件对仿真模型进行分析,并与传统被动式孤岛检测方法比较,验证此方法的有效性和适用性。...

Full description

Saved in:
Bibliographic Details
Published in东北农业大学学报 Vol. 46; no. 3; pp. 103 - 108
Main Author 房俊龙 杨平平 傅瑜 王晓峰 刘国亮 王冠男
Format Journal Article
LanguageChinese
Published 东北农业大学电气与信息学院,哈尔滨,150030%国家电网大庆供电公司,黑龙江 大庆,163000 2015
Subjects
光伏发电
孤岛检测
并网逆变器
电压相角
电压相角
孤岛检测
islanding detection
photovoltaic power
voltage phase angle
grid-connected converter
并网逆变器
光伏发电
Online AccessGet full text
ISSN1005-9369

Cover

More Information
Summary:针对分布式并网发电系统孤岛效应问题,研究一种基于逆变器端的光伏发电系统的主动式孤岛检测方法。将公共连接点（PCC）处的电压相角变化作为试验检测方法中的反馈量。在孤岛发生时,有效打破逆变器输出和负载之间的功率平衡,通过检测逆变器输出电压、频率变化,快速判断孤岛的发生。根据UL 1741标准中的技术规范,通过MATLAB软件对仿真模型进行分析,并与传统被动式孤岛检测方法比较,验证此方法的有效性和适用性。
Bibliography:23-1391/S
The islanding effect of distributed grid-connected generation was picked as the research topic. A new method was studied for the active islanding detection of an inverter based in PV system. The variation of voltage phase angle at PCC was used as a feedback in the proposed method. It could break the balance of the output power match between inverters and loads. It identified the islands fast through detecting the changes of inverter output voltage and frequency. The simulating module was analyzed as the technique standards in the UL 1741 by MATLAB, and compared with traditional passive islanding detection method. The validity and practicability was confirmed through the emulated model.
FANG Junlong, YANG Pingping, FU Yu, WANG Xiaofeng, LIU Guoliang, WANG Guannan （1. School of Electrical and.Information, Northeast Agricultural University, Harbin 150030, China; 2. Daqing Power Supply Company of State Grid, Daqing Heilongjiang 163000,China）
islanding detection;grid-connected converter;voltage phase angle;
ISSN:1005-9369