文档介绍：30 2 Vol. 30 No. 2
第卷第期机电工程
2013 2 Journal of Mechanical & Electrical Engineering Feb. 2013
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DOI .1001-
:
基于正反馈主动移频式孤岛检测算法的模糊优化*
吴芳德,张奔奔,胥芳*
/ 310014
(浙江工业大学特种装备制造与先进加工技术教育部浙江省重点实验室,浙江杭州)
摘要:孤岛检测是并网光伏发电系统必备的功能,基于正反馈的主动频率偏移法是目前应用最为广泛的一种孤岛检测算法。针对
该算法在反馈参数选择时孤岛检测盲区和输出电能质量难以兼顾的问题,分析了算法参数与孤岛检测盲区和输出电能质量的关系,
给出了算法参数的选取范围,采用模糊控制,根据电网断开后公共点电压频率的变化情况对反馈参数进行了自适应在线调整,建立
Simulink/SimPowerSystems
了基于的孤岛检测仿真模型。仿真结果表明,该方法不仅能够实现并网光伏发电系统的无盲区检测,而且
%
其输出电流畸变率比常规算法降低了。
关键词:并网;光伏发电系统;孤岛检测;主动频率偏移;模糊优化
TM615 A 1001-4551 2013 02-0223-05
中图分类号: 文献标志码: 文章编号: ( )
Fuzzy optimization of islanding detection algorithm based on active
frequency drift with positive feedback
WU Fang-de ZHANG Ben-ben XV Fang
, ,
Key Laboratory of E&M Ministry of Education & Zhejiang Province Zhejiang University of Technology
( , , ,
Hangzhou 310014 China
, )
Anti-islanding protection is mandatory feature for grid-connected inverters. Active frequency drift AFD with positive
Abstract: ( )
feedback islanding detection method is the most widely used at present. It is difficult to give consideration to non-detection zone and
output power quality when chose the algorithm parameter. In order to solve the problem firstly the relationship between the algorithm
, ,
parameter and the above two a