Improved grid-synchronization technique based on adaptive notch filter

Author

Jung, Hoon-Young ; Ji, Young-Hyok ; Won, Chung-Yuen ; Song, Doo-Young ; Kim, Jin-Wook

Author_Institution

Sungkyunkwan Univ., Suwon, South Korea

fYear

2010

fDate

21-24 June 2010

Firstpage

1494

Lastpage

1498

Abstract

A digital grid synchronization technique is needed for distributed generation system to make output current sinusoidal even if the grid voltage is distorted by harmonics. In this paper, a digital grid synchronization technique based on adaptive notch filter is proposed. The analysis of proposed technique is performed through the consideration of grid synchronization technique based on PLL and FLL. The validity of the proposed method was confirmed by simulation results.

Keywords

adaptive filters; distributed power generation; harmonic distortion; notch filters; phase locked loops; power grids; power harmonic filters; synchronisation; FLL; PLL; adaptive notch filter; digital grid synchronization technique; distributed generation system; harmonic distortion; Adaptive filters; Distributed power generation; Frequency synchronization; Harmonic distortion; Phase locked loops; Photovoltaic systems; Power harmonic filters; Power system harmonics; Robustness; Voltage; Decentralized PV-PCS; Frequency-locked-loop; Grid connected system; Phase-locked-loop;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Conference (IPEC), 2010 International

Conference_Location

Sapporo

Print_ISBN

978-1-4244-5394-8

Type

conf

DOI

10.1109/IPEC.2010.5544516

Filename

5544516