Title :
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
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;
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
DOI :
10.1109/EPE.2007.4417594
