期刊
IET GENERATION TRANSMISSION & DISTRIBUTION
卷 11, 期 16, 页码 4104-4113出版社
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/iet-gtd.2016.1617
关键词
-
资金
- CURENT
- US NSF
- DOE Engineering Research Center under NSF [EEC-1041877]
- U.S. Department of Energy, Office of Science, Office of Electricity Delivery and Energy Reliability
- U.S. Department of Energy [DE-AC05-00OR22725]
- Department of Energy
Distributed generations (DGs) for grid-connected applications require an accurate and reliable islanding detection methodology (IDM) for secure system operation. This study presents an IDM for grid-connected inverter-based DGs. The proposed method is a combination of passive and active islanding detection techniques for aggregation of their advantages and elimination/minimisation of the drawbacks. In the proposed IDM, the passive method utilises critical system attributes extracted from local voltage measurements at target DG locations as well as employs decision tree-based classifiers for characterisation and detection of islanding events. The active method is based on Sandia frequency shift technique and is initiated only when the passive method is unable to differentiate islanding events from other system events. Thus, the power quality degradation introduced into the system by active islanding detection techniques can be minimised. Furthermore, a combination of active and passive techniques allows detection of islanding events under low power mismatch scenarios eliminating the disadvantage associated with the use of passive techniques alone. Detailed case study results demonstrate the effectiveness of the proposed method in detection of islanding events under various power mismatch scenarios, load quality factors and in the presence of single or multiple grid-connected inverter-based DG units.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据