Power flow limitations for LCL grid-connected power converters

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Title:	Power flow limitations for LCL grid-connected power converters
Author:	Orellana Barceló, Marcos; Griñó Cubero, Robert
Other authors:	Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. ACES - Control Avançat de Sistemes d'Energia
Abstract:	The controllers of VSI Power Converters connected to the electrical grid can produce line currents in phase (or not) with respect to the phase-to-neutral voltages. The amplitude of the currents and the phase difference are determined by the control signal, and they are limited by the passive elements of the LCL input filter, the grid impedance, the dc bus voltage, the maximum bearable power by the converter and the control signal itself. In this paper, the role of each element is studied in order to determine the final operation region of the power converter. These limitations can be useful to design the LCL filter and the converter's operation range
Abstract:	Peer Reviewed
Subject(s):	-Àrees temàtiques de la UPC::Informàtica::Automàtica i control -Power conversion -VSI power converters -load flow -power convertors -power filters -power grids -rectifying circuits -Convertidors de potència
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Document type:	Article - Submitted version Conference Object
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