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http://dx.doi.org/10.5207/JIEIE.2013.27.11.027

A Novel Hybrid Anti-islanding Method to Improve Reliability of Utility Interactive Inverter for a PMSG-based Wind Power Generation System  

Kang, Sung-Wook (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology)
Kim, Kyeong-Hwa (Dept. of Electrical and Information Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.27, no.11, 2013 , pp. 27-36 More about this Journal
Abstract
Islanding in a gird connected inverter of wind power generation system may influence a bad effect on equipments or yield safety hazards on grid so it should be detected rapidly and exactly. A passive method to detect islanding is comparatively simpler than an active method but suffers from non detection zone (NDZ). On the other hand, the active method can significantly reduce NDZ by injecting a disturbance into inverter output. To improve the reliability of islanding detection, this paper proposes a hybrid anti-islanding detection method combining the conventional passive method as well as the active method based on novel harmonic injection method using fourier transform. The proposed scheme is fast to detect islanding when NDZ does not exist because it has the nature of passive method. Under NDZ, the active method can detect occurrence of islanding reliably. The effectiveness and validity of the proposed scheme is proved through comparative simulations.
Keywords
Hybrid Anti-islanding; NDZ; Reliability; Utility Interactive Inverter; Wind Power System;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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