| 主动移频式孤岛检测方法的参数优化 |
| |
| 引用本文： | 刘芙蓉,康勇,段善旭,王志峰,王辉. 主动移频式孤岛检测方法的参数优化[J]. 电源学报, 2006, 4(3): 176-181 |
| |
| 作者姓名： | 刘芙蓉 康勇 段善旭 王志峰 王辉 |
| |
| 作者单位： | 1.华中科技大学电气学院，武汉市 430074 ；2.武汉理工大学自动化学院，武汉市 430070;华中科技大学电气学院，武汉市 430074;华中科技大学电气学院，武汉市 430074;华中科技大学电气学院，武汉市 430074;华中科技大学电气学院，武汉市 430074 |
| |
| 基金项目： | 国家自然科学基金重点资助项目(50237020)，台达环境与教育基金会电力电子科教发展基金重点资助项目(DREK200501) |
| |
| 摘 要： | 孤岛检测是光伏系统并网必备的功能，要求既能快速地检出孤岛状态，同时又尽量减少对电网的不良影响。孤岛检测性能的好坏不仅取决于所采用的孤岛检测策略，也取决于检测策略中参数的设置是否合理，遗憾的是目前在参数优化的理论指导方面严重不足。该文通过对主动移频式孤岛检测方法的检测盲区进行分析，推导了带线性正反馈主动移频式(AFDPF)孤岛检测方法的盲区大小与反馈增益间的关系，并得出特定负载下孤岛检测无盲区AFDPF反馈增益的取值范围，从而为AFDPF孤岛检测方法的参数优化提供了理论指导。
|
| 关 键 词： | 主动移频，孤岛检测，并网光伏系统 |
| 收稿时间： | 2006-06-11 |
Parameter optimization of active frequency drift islanding detection method |
| |
| LIU Fu-rong,KANG Yong,DUAN Shanxu,WANG Zhifeng and WANG Hui. Parameter optimization of active frequency drift islanding detection method[J]. Journal of Power Supply, 2006, 4(3): 176-181 |
| |
| Authors: | LIU Fu-rong KANG Yong DUAN Shanxu WANG Zhifeng WANG Hui |
| |
| Affiliation: | 1. College of Electrical and Electronic Engineering, Huazhong University of Science and Technology,Wuhan 430074, China; 2. Automation Department,Wuhan university of technology, Wuhan 430070, China;College of Electrical and Electronic Engineering, Huazhong University of Science and Technology,Wuhan 430074, China;College of Electrical and Electronic Engineering, Huazhong University of Science and Technology,Wuhan 430074, China;College of Electrical and Electronic Engineering, Huazhong University of Science and Technology,Wuhan 430074, China;College of Electrical and Electronic Engineering, Huazhong University of Science and Technology,Wuhan 430074, China |
| |
| Abstract: | Anti-islanding protection is a mandatory feature for grid-connected inverters. A desired islanding detection method not only can detect islanding within acceptable duration, but also have less adverse impact on power quality. The performance of islanding detection method is usually subject to the anti-islanding strategy and parameter setting. This paper analyzed the non detection zone (NDZ) of active frequency drift (AFD) and active frequency drift with positive feedback (AFDPF). Based on the analysis the relationship between NDZ and feedback gain of AFDPF is deduced, which can be expressed as a mathematics equation and gives the range for feedback gain to guarantee the anti-islanding protection. The calculation is simple and accurate, thus can be taken as a good guideline in AFDPF parameters setting. |
| |
| Keywords: | active frequency drift islanding detection grid-connected PV system |
|
| 点击此处可从《电源学报》浏览原始摘要信息 |
|
点击此处可从《电源学报》下载免费的PDF全文 |
|
