Influence analysis of the effects of an inductive-resistive weak grid over L and LCL filter current hysteresis controllers

Author

Cobreces, Santiago ; Bueno, Emilio ; Rodriguez, Francisco J. ; Huerta, Francisco ; Rodriguez, Pedro

Author_Institution

Univ. de Alcala., Alcala de Henares

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

10

Abstract

The objective of this paper is to analyse the influence of a non-ideal grid over hysteresis controllers of converters connected to the grid through both L and LCL filters. The paper will describe the different possible configurations in both cases, analysing the effect of a general R-L grid. Limit values for both grid inductance and resistance are given for the L structure. In the case of LCL connection, the analysis will overview important issues such as active damping, and switching behaviour giving limits to stability as a function of grid impedance value.

Keywords

electric admittance; electric resistance; power convertors; power filters; power grids; power system control; L filter current hysteresis controllers; LCL filter current hysteresis controllers; active damping; converters; grid impedance value; inductive-resistive weak grid; switching behaviour; Active filters; Damping; Hysteresis; Impedance; Inductance; Mesh generation; Photovoltaic systems; Power system modeling; Robust control; Stability analysis; Active damping; Active filter; Converter control; Non-linear contro; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417594

Filename

4417594