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A Method of PLL(Phase-Locked Loop) using FFT  

Ryu, Kang-Ryul (한국전기연구원)
Lee, Jong-Pil (한국전기연구원)
Kim, Tae-Jin (한국전기연구원)
Yoo, Dong-Wook (한국전기연구원)
Song, Eui-Ho (창원대 제어계측공학과)
Min, Byung-Duk (한국전기연구원)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.13, no.3, 2008 , pp. 206-212 More about this Journal
Abstract
This paper proposes the PLL(Phase-Locked Loop) algorithm by a new FFT(Fast Fourier Transform) in a grid-connected PV PCS(Photovoltaics Power Conditionning System). The grid-connected inverter that is applied in a new renewable energy field needs the grid phase information for synchronism. Unlike the PLL which is normally used by three phase D-Q conversion, the preposed PLL algorithm using FFT has non-gain tuning and the powerful noise elimination by the characteristics of FFT. Both simulation and experimental result show that proposed algorithm has the good capacity.
Keywords
Fast Fourier Transform algorithm; Phase Lock Loop; Grid-connected inverter; PV PCS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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