电力系统保护与控制Issue(8)：95-100,6.
带电压频率正反馈的主动移频式孤岛检测方法
Active frequency drift islanding detection with positive feedback of voltage frequency
摘要
Abstract
Active Frequency Drift (AFD) Method is a simple and effective islanding detection method. However, the power quality is affected due to the introduced distortion on inverter current and the non-detection zone is bigger. This paper proposes an improvement to AFD by adopting positive feedback of voltage frequency and changing part of the current amplitude rather than changing the current frequency directly. The total harmonic distortion is analyzed and non-detection zone of the improved algorithm is described by using f 0 normQ × C coordinate plane. Analysis and simulation show that compared to traditional method, the improved one has less distortion on inverter current, smaller non-detection zone and better power quality.关键词
孤岛效应/总谐波分析/检测盲区/孤岛保护/仿真分析Key words
islanding/analysis of total harmonic distortion (THD)/non-detection zone (NDZ)/islanding protection/simulation analysis分类
信息技术与安全科学引用本文复制引用
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,(8):95-100,6.基金项目
广东省自然科学基金资助项目 （）
