电力系统保护与控制Issue(24)：107-111,5.
一种低谐波畸变量的快速主动移频式孤岛检测方法
An improved active frequency drift islanding detection method with lower total harmonic distortion
摘要
Abstract
Anti-islanding detection is a mandatory function of grid-connected inverters. This paper proposes a novel active frequency drift (AFD) islanding detection method to solve the problems of the classic AFD method, such as longer detection time and larger non-detection zone (NDZ). In the proposed AFD method, an approximating cosine disturbance current waveform is injected into the original reference current waveform, so that there is less side influence on power quality when the reactive power generated by reference current waveform equals. This paper analyzes the relationship between the total harmonic distortion (THD) and Q/P and the distribution of NDZ in the proposed method through the value decomposition of the proposed reference current waveform, and compares the new method with the classic AFD method. The simulation results show the proposed method has shorter detection time, smaller NDZ and less influence on power quality.关键词
孤岛检测/主动移频/THD/检测盲区Key words
islanding detection/active frequency drift/THD/non-detection zone分类
信息技术与安全科学引用本文复制引用
陈武,王广江,蒋玮..一种低谐波畸变量的快速主动移频式孤岛检测方法[J].电力系统保护与控制,2013,(24):107-111,5.基金项目
国家自然科学基金(51307024)；教育部博士点基金(20120092120053)；教育部留学回国人员科研启动基金；中央高校基本科研业务费专项资金资助项目 （51307024）
This work is supported by National Natural Science Foundation of China (No.51307024) （No.51307024）
