Synchronization of grid-connected converters for single-phase systems

Author

Komrska, Tomas ; Janik, Dusan ; Peroutka, Zdenek

Author_Institution

Regional Innovation Centre for Electr. Eng. (RICE), Univ. of West Bohemia in Pilsen, Plzen, Czech Republic

fYear

2013

Firstpage

1

Lastpage

8

Abstract

Single-phase grid-connected converters need to be synchronized with voltage/current fundamental component. This paper investigates and deeply evaluates four real-time estimators based on DFT, adaptive filter, least squares and SOGI, designed for high-quality 1^st harmonic extraction. Presented theoretical results are confirmed by extensive experimental research made on developed converter prototypes.

Keywords

adaptive estimation; adaptive filters; discrete Fourier transforms; least squares approximations; power convertors; power grids; power harmonic filters; power system harmonics; synchronisation; DFT; SOGI; adaptive filter; high-quality 1^st harmonic extraction; least square method; single-phase grid-connected converter; synchronization; voltage-current fundamental component; Adaptive filters; Discrete Fourier transforms; Estimation; Finite impulse response filters; Harmonic analysis; Power harmonic filters; Vectors; DSP; Estimation technique; FPGA; Real time processing; Single phase system;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications (EPE), 2013 15th European Conference on

Conference_Location

Lille

Type

conf

DOI

10.1109/EPE.2013.6634407

Filename

6634407