Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

Article retrieval

文章检索

首页 >> 文章检索 >> 往年索引

主被动相结合的孤岛检测方案研究

来源:电工电气发布时间:2017-06-20 12:20 浏览次数:8
主被动相结合的孤岛检测方案研究
 
徐建委
(国网甘肃省电力公司经济技术研究院,甘肃 兰州 730050)
 
    摘 要:介绍了孤岛效应的发生机理和危害,在被动式过/ 欠压与过/ 欠频孤岛检测法和主动移频式(AFD) 孤岛检测法的基础上提出一种主被动相结合的孤岛检测方案,阐述了该方案的具体实现策略,并分别从纯阻性、感性、容性、谐振四种负载特性对方案进行仿真分析。结果表明该方案既可以减少AFD 孤岛检测方法对电网造成的谐波污染,又可以弥补被动式过/ 欠压与过/ 欠频孤岛检测方法检测盲区太大的不足,有效提高了孤岛检测的效率。
    关键词:孤岛检测;被动式过/ 欠压与过/ 欠频孤岛检测法;AFD 孤岛检测法;主被动相结合
    中图分类号:TM615;TM930.1     文献标识码:A     文章编号:1007-3175(2017)06-0031-06
 
Study on Combination of Active and Passive Islanding Detection Scheme
 
XU Jian-wei
(State Grid Gansu Economic Research Institute, Lanzhou 730050, China)
 
    Abstract: Introduction was made to the mechanism and harm of islanding effect. On the basis of the passive over/under voltage and over/ under frequency islanding detection method, this paper proposed a kind of combination of active and passive islanding detection scheme, elaborated the concrete implementation strategy of this scheme and carried out the simulation analysis for the scheme from the four load characteristics of pure resistive, inductive, capacitive and resonance. The result shows that this scheme could not only reduce the harmonic pollution to the power grid caused by the automatic feeding device (AFD) islanding detection method, but also make up the deficiency of too large non-detection zone (NDZ) of passive over / under voltage and over / under frequency islanding detection method, which effectively improves
the efficiency of island detection.
    Key words: islanding detection; passive over/under voltage and over/under frequency islanding detection method; automatic feeding device islanding detection method; combination of active and passive islanding detection
 
参考文献
[1] 牛冲宣. 微电网的孤岛检测与孤岛划分[D]. 天津:天津大学,2008.
[2] 姚丹. 分布式发电系统孤岛效应的研究[D]. 合肥:合肥工业大学,2006.
[3] 于正友. 并网系统孤岛检测方法的研究[D]. 南京:南京航空航天大学,2009.
[4] 刘芙蓉. 并网型户用光伏系统的孤岛检测技术研究[D]. 武汉:华中科技大学,2008.
[5] 代璐. 光伏并网发电系统中孤岛检测方法研究[D].重庆:重庆大学,2011.
[6] 陈曦,李亚楠,陈阿莲,等. 基于频率偏移法的光伏并网逆变器孤岛检测[C]//2011 中国电工技术学会学术年会论文集,2011.
[7] 顾娟. 光伏发电并网孤岛检测研究[D]. 南京:东南大学,2010.
[8] 薄涛. 光伏系统中的电压提升与孤岛检测研究[D].杭州:浙江大学,2008.
[9] 王武,蔡逢煌,郑必伟. 正反馈有源频率扰动孤岛检测的一种改进算法[J]. 电力电子技术,2012,46(2):45-47.
[10] 李秉键,吴华波. 基于频差正反馈的孤岛效应检测方法[J]. 电力电子技术,2011,45(5);1-3.
[11] 蒋翠,祁新梅,郑寿森. 带电压频率正反馈的主动移频式孤岛检测方法[J]. 电力系统保护与控制,2014,42(18):95-100.
[12] 吴芳德,张奔奔,胥芳. 基于正反馈主动移频式孤岛检测算法的模糊优化[J]. 机电工程,2013,30(2):223-227.