Current control of voltage source converters connected to the grid through an LCL-filter

Author

Bueno, Emilio J. ; Espinosa, Felipe ; Rodríguez, Francisco J. ; Urefia, J. ; Cobreces, Santiago

Author_Institution

Electron. Dept., Alcala Univ., Madrid, Spain

Volume

1

fYear

2004

fDate

20-25 June 2004

Firstpage

68

Abstract

The aim of this paper is to propose a current control of VSCs connected to the grid through an LCL-filter. The proposed algorithm controls the grid current using only two sensors. Other variables are obtained with a state estimator, and the possible disturbances of the system are attenuated with active damping. The control algorithm has been proved for different disturbances, such as temporal variations in the components of the model and perturbations in the grid, and also with the linear and nonlinear models.

Keywords

damping; electric current control; passive filters; power convertors; sensors; state estimation; LCL-filter; active damping; grid current control; linear models; nonlinear models; sensors; state estimator; voltage source converters; Current control; Damping; Inductance; Power conversion; Power harmonic filters; Power system modeling; Reactive power; Switching converters; Switching frequency; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2004. PESC 04. 2004 IEEE 35th Annual

ISSN

0275-9306

Print_ISBN

0-7803-8399-0

Type

conf

DOI

10.1109/PESC.2004.1355715

Filename

1355715