Title :
Design of a voltage sag generator based on impedance switching
Author :
Gabe, Ivan Jorge ; Gründling, Hilton Abílio ; Pinheiro, Humberto
Author_Institution :
Federal Institute of Rio Grande do Sul- IFRS, Farroupilha, Brazil
Abstract :
This paper describes an experimental setup of a voltage sag generator (VSG) based on impedance switching. Bidirectional switches with IGBTs, snubber and clamping circuits are adopted to obtain fast turn on, turn-off while avoiding undesirable voltages and currents stresses. In addition, with the proposed VSG it is possible to adjust the depth and duration of balanced and unbalanced voltage dips making it possible to observe the behavior of wind turbines (WT) under, for instance, voltage dips indicated in the IEC 61400-21.
Keywords :
Impedance; Insulated gate bipolar transistors; Power quality; Switches; Voltage control; Voltage fluctuations; Wind turbines;
Conference_Titel :
IECON 2011 - 37th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Melbourne, Vic, Australia
Print_ISBN :
978-1-61284-969-0
DOI :
10.1109/IECON.2011.6119812
