电力系统自动化2012，Vol.36Issue(14)：193-199,7.
基于无功电流—频率正反馈的孤岛检测方法
A Novel Islanding Detection Method Based on Positive Feedback Between Reactive Current and Frequency
杨滔 1王鹿军 1张冲 1吕征宇1
作者信息
- 1. 电力电子国家重点实验室,浙江大学,浙江省杭州市310027
- 折叠
摘要
Abstract
Islanding detection is one of the most important functions~ in the photovoltaic power generation system. In order to eliminate the non-detection zone and minimize the effect on the power quality, a novel islanding detection method using the positive feedback between reactive current and frequency is proposed based on the phase-locked loop of three-phase photovoltaic grid-connected inverter. The parameters are selected to guarantee the positive feedback and the flowchart of this method is given out. Simulation and experiments show that the method almost has no disturbance on the system under normal operations. But when an islanding occurs, the positive feedback between the reactive current and frequency will change the frequency quickly in one direction until triggering the islanding protection.关键词
孤岛检测/锁相环/正反馈/无功电流/频率偏移Key words
islanding detection/phase-locked loop/positive feedback/reactive current/frequency drift分类
交通工程引用本文复制引用
杨滔,王鹿军,张冲,吕征宇..基于无功电流—频率正反馈的孤岛检测方法[J].电力系统自动化,2012,36(14):193-199,7.
