Effects of unbalanced voltages on the energy performance of three-phase induction motors

This paper presents the results of a study about the effects of unbalanced voltages on the energy performance of three-phase induction motors. The principal contribution of this paper is that presents a study of the influence of positive sequence voltage on the several characteristics: line currents...

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Bibliographic Details
Published in2015 IEEE Workshop on Power Electronics and Power Quality Applications (PEPQA) pp. 1 - 6
Main Authors Quispe, Enrique C., Lopez, Ivan D.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2015
Subjects
efficiency
energy performance
Impedance
Induction motors
Iron
losses
Mathematical model
power factor
Power generation
Reactive power
Rotors
voltage unbalance
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Summary:This paper presents the results of a study about the effects of unbalanced voltages on the energy performance of three-phase induction motors. The principal contribution of this paper is that presents a study of the influence of positive sequence voltage on the several characteristics: line currents, losses, efficiency and power factor under different voltage unbalanced conditions. A three-phase induction motor of 3 HP was used in the study. The paper suggests that the positive sequence voltage must be considered together with the Voltage Unbalance Factor VUF (or Percent Voltage Unbalance PVU) index to evaluate the performance of the induction motor.
DOI:10.1109/PEPQA.2015.7168237