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http://dx.doi.org/10.7836/kses.2015.35.2.011

Detection Performance and THD Analysis of Active Frequency Drift for Anti-Islanding  

Jo, Yeong-Min (Department of Electrical Engineering, Kwangwoon University)
Choi, Ju-Yeop (Department of Electrical Engineering, Kwangwoon University)
Song, Seung-Ho (Department of Electrical Engineering, Kwangwoon University)
Choy, Ick (Department of Robot Engineering, Kwangwoon University)
Lee, Young-Kwoun (Keumbee Electronics)
Publication Information
Journal of the Korean Solar Energy Society / v.35, no.2, 2015 , pp. 11-19 More about this Journal
Abstract
Islanding is a phenomenon that EPS(Electric Power System) is continuously energized by PV PCS(Photovoltaic Power Conditioning System) even when EPS is isolated from the grid. Unintentional islanding will result in safety hazard, power quality degradation and many other issues. So, islanding protection of grid-connected PV PCS is a key function for standards compliance. Nowadays, many anti-islanding schemes are researched. But existing anti-islanding schemes used in PV PCS have power quality degradation and non-detection zone issues. This paper analyses not only detection performance of existed anti-islanding schemes using active frequency drift but also THD of PCS output current according to each value disturbance for anti-islanding. In addition, the lowest value of disturbance in each scheme was tabulated under guarantee of anti-islanding condition.
Keywords
Grid-connected photovoltaic power conditioning system; Active anti-islanding; Frequency drift; Power quality; Total harmonic distortion; Disturbance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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