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DYNA

versão impressa ISSN 0012-7353

Resumo

JARAMILLO-MATTA, Adolfo Andrés; GUASCH-PESQUER, Luis  e  TRUJILLO-RODRIGUEZ, Cesar Leonardo. Classification of voltage sags according to the severity of the effects on the induction motor. Dyna rev.fac.nac.minas [online]. 2015, vol.82, n.190, pp.96-104. ISSN 0012-7353.  http://dx.doi.org/10.15446/dyna.v82n190.43286.

In this paper, symmetrical and unsymmetrical voltage sags are classified according to the severity of the effects produced on the behavior of induction motors, using the double-cage rotor model. The analyzed variables are: current and torque peaks, and speed loss in transient and steady states. The severity of these effects is analyzed with 14640 voltage sags, both at the beginning of the voltage sag and when the voltage is recovered, by changing the type, magnitude, duration, and initial-point-of-wave. Four mechanical torque loads were used for the analysis, three with constant behavior and one with quadratic behavior. The results show the durations and initial-point-of-wave with more severe effects for each type of voltage sag. Finally, a classification that depends on the type of voltage sag and the variable of interest is obtained.

Palavras-chave : double-cage model; induction machine; sensitivity curves; symmetrical and unsymmetrical voltage sa; Curvas de sensibilidad; huecos de tensión simétricos y asimétricos; máquina inducción; modelo de doble jaula.

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