摘要
针对目前的主动检测方法在检测光伏并网系统中的"孤岛效应"时会增加电流的总谐波,降低电能质量的问题,研究了一种基于模糊控制的孤岛检测方法。该方法根据频率的偏差以及偏差的变化率来给定步长,从而在可以快速检测出"孤岛效应"的同时又不增加光伏并网系统的电流总谐波含量。
Aim at the current islanding detection methods in the photovoltaic systems will increase the total harmonic and reduce power quality problems ,studied a new islanding detection basedon fuzzy control,The method according to the frequency deviation and the deviation of the rate of change for a given step ,it can quickly detect the ＂islanding＂ also does not increase the total harmonic.
出处
《信息通信》
2011年第6期13-14,共2页
Information & Communications
关键词
光伏并网
孤岛效应
孤岛检测
模糊控制
Photovoltaic Grid-Connected
islanding
islanding detection
fuzzy control
