%0 Journal Article
%T Direct torque control of induction machines with current limitation and ripple reduction using fuzzy logic
%A Ortega
%A Marcel
%A Restrepo
%A Jos¨¦ A
%A Viola
%A Julio
%A Gim¨¦nez
%A Mar¨ªa I
%A Guzm¨¢n
%A V¨ªctor
%J Revista T¨¦cnica de la Facultad de Ingenier¨ªa Universidad del Zulia
%D 2008
%I Scientific Electronic Library Online
%X the classic direct torque control scheme proposed by takahashi y noguchi [1] obtains fast torque responses of the induction machine. this control scheme however does not regulate the current demand, and the developed torque presents high ripple levels. in this paper a modification to the dtc algorithm is presented where a control loop is added to limit the stator current to a preset value. the proposed control strategy also allows for stator voltage regulation, resulting in a reduction of the electric torque ripple. in the proposed scheme the control voltage vector amplitude modulation is accomplished by a fuzzy controller with two inputs. the proposed control scheme was analized in simulations performed in c language, and afterwards experimental results were obtained with an 1 £¿ hp induction motor and the plataforma iii system developed by the siep group of the sim¨®n bol¨ªvar university.
%K direct torque control
%K induction machine
%K fuzzy logic.
%U http://www.scielo.org.ve/scielo.php?script=sci_abstract&pid=S0254-07702008000200010&lng=en&nrm=iso&tlng=en