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

Author

Quispe, Enrique C. ; Lopez, Ivan D.

Author_Institution

Dept. of Energy & Mech., Univ. Autonoma de Occidente, Cali, Colombia

fYear

2015

fDate

2-4 June 2015

Firstpage

1

Lastpage

6

Abstract

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.

Keywords

induction motors; power factor; energy performance; line current; line loss; percent voltage unbalance; positive sequence voltage; power factor; three-phase induction motors; unbalanced voltages; voltage unbalance factor; voltage unbalanced conditions; Impedance; Induction motors; Iron; Mathematical model; Power generation; Reactive power; Rotors; efficiency; energy performance; induction motors; losses; power factor; voltage unbalance;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Power Quality Applications (PEPQA), 2015 IEEE Workshop on

Conference_Location

Bogota

Type

conf

DOI

10.1109/PEPQA.2015.7168237

Filename

7168237