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Content Provider | IET Digital Library |
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Author | Azim, Riyasat Li, Fangxing Xue, Yaosuo Starke, Michael Wang, Honggang |
Abstract | 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. |
Starting Page | 4104 |
Ending Page | 4113 |
Page Count | 10 |
ISSN | 17518687 |
Volume Number | 11 |
e-ISSN | 17518695 |
Issue Number | Issue 16, Nov (2017) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/11/16 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.1617 |
Journal | IET Generation, Transmission & Distribution |
Publisher Date | 2017-07-13 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Active Islanding Detection Technique Combinatorial Mathematics Decision Tree Decision Tree-based Classifier Distributed Power Generation Grid-connected Application Inverter-based Distributed Generation Invertors Islanding Detection Methodology Load Quality Factor Multiple Grid-connected Inverter-based DG Unit Passive Islanding Detection Technique Pattern Classification Power Generation Economics Power Grid Power Mismatch Scenario Power Quality Degradation Power Supply Quality Power System Control Power System Economics Power System Managemen Power System Operation Power System Operation Security Power System Security Sandia Frequency Shift Technique |
Content Type | Text |
Resource Type | Article |
Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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