Encontro de Energia no Meio Rural
Agrener

Abstract

RODRIGUES, Ricardo Martini, SERNI, Paulo José Amaral, RODRIGUES, José Francisco et al. Desequilíbrio de tensões em instalações elétricas agroindustriais. In Proceedings of the 6. Encontro de Energia no Meio Rural, 2006, Campinas (SP, Brazil) [online]. 2006 [cited 26 April 2024]. Available from: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000022006000100049&lng=en&nrm=iso> .

This paper analyzes three-phase industrial agricultural loads operation, under conditions of feeding with unbalanced voltages. Simulations are made in the circuits operating with balanced and unbalanced voltages and the effects in an three-phase induction motor and in an three-phase rectifier are analyzed. The oscillation in steady-state torque in the three-phase induction motor and the generation of triplen harmonics components in the three-phase six pulses rectifier are distinguished as important effects of the operation of these loads with three-phase unbalanced voltages.

Keywords : induction motor; power quality; rectifiers; triplen harmonics; unbalanced voltage.