%0 Journal Article
%T Compensador s¨¦rie de tens£¿o em onda quadrada para mitiga£¿£¿o de afundamentos de tens£¿o
%A Pires
%A Igor Amariz
%A Cardoso Filho
%A Braz de Jesus
%A Silva
%A Sidelmo Magalh£¿es
%J Sba: Controle & Automa£¿£¿o Sociedade Brasileira de Automatica
%D 2012
%I Sociedade Brasileira de Autom¨¢tica
%R 10.1590/S0103-17592012000200004
%X the most known svc are the dvrtm (dynamic voltage re-storer) and dysctm (dynamic sag corrector), which are used to protect sensitive loads. the voltage injected by the dvr is sinusoidal, produced by an h-bridge inverter which is modulated using pulse width modulation (pwm) and a sinusoidal output filter. considering that voltage sags are fast phenomena that usually last hundreds of milliseconds, this paper proposes the use of square-wave voltages to compensate sags as well as the control strategy for the compensator. experimental results show the effectiveness of the injection of a square-wave voltage for the protection of electronic loads.
%K sag
%K series voltage compensator
%K power quality.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-17592012000200004&lng=en&nrm=iso&tlng=en