| 基于频差正反馈的孤岛效应检测方法 |
| |
| 引用本文： | 李秉键,吴华波.基于频差正反馈的孤岛效应检测方法[J].电力电子技术,2011,45(5):1-3. |
| |
| 作者姓名： | 李秉键 吴华波 |
| |
| 作者单位： | 广东嘉应学院; |
| |
| 摘 要： | 研究了一种并网逆变系统的孤岛效应检测方法.首先分析了电网断电时,并网逆变器带不同性质负载的情况下,其输出电压频率漂移方向与负载性质的关系,在此基础上提出了一种基于频差正反馈的孤岛效应检测算法.电网断电时,通过检测输出电压频差来判定其频率的漂移方向,沿此方向施加频率扰动,实施频率正反馈加速频率漂移,使并网逆变器输出电压的...
|
| 关 键 词： | 孤岛效应 频率漂移 频率扰动 正反馈 |
An Islanding Detection Method Based on Frequency Deviation and Positive Feedback |
| |
| LI Bing-jian,WU Hua-bo.An Islanding Detection Method Based on Frequency Deviation and Positive Feedback[J].Power Electronics,2011,45(5):1-3. |
| |
| Authors: | LI Bing-jian WU Hua-bo |
| |
| Affiliation: | LI Bing-jian,WU Hua-bo(Guangdong Jiaying University,Meizhou 514015,China) |
| |
| Abstract: | An islanding detection method for the grid-connected inverting system is studied.Firstly,the relationship be-tween the frequency drifting direction of the output voltage and the load characteristic under different loads during power grid being powered off is analyzed.On this basis,an islanding detection method based on frequency differential positive feedback is proposed.When the grid is powered off,the system detects the frequency differential to decide the frequency drifting direction of the output voltag... |
| |
| Keywords: | islanding detection frequency drifting frequency disturbance positive feedback |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
