Procedure for Determining Induction Motor Efficiency Working Under Distorted Grid Voltages

Author

Sousa Santos, Vladimir ; Felipe, Percy R. Viego ; Gomez Sarduy, Julio R. ; Lemozy, Norberto A. ; Jurado, Alejandro ; Quispe, Enrique C.

Author_Institution

Center of Energy & Environ. Studies, Univ. de Cienfuegos, Cienfuegos, Cuba

Volume

30

Issue

1

fYear

2015

fDate

Mar-15

Firstpage

331

Lastpage

339

Abstract

In electric power systems, it is very common to find problems of power quality. The flow of harmonics significantly affect the operation of three-phase induction motors, and its energy characterization becomes difficult. There are different methods in situ to estimate motor efficiency. However, it is necessary to deepen the in situ efficiency analysis under nonsinusoidal voltage conditions. In this paper, a procedure is presented based on the equivalent circuits with losses segregation and using a bacterial foraging algorithm (BFA). It allows induction motors´ energy efficiency determination in field conditions with low invasiveness and working under harmonic distortion. The method was successfully tested on a 1.5 kW motor fed with significant levels of voltage harmonic.

Keywords

equivalent circuits; induction motors; optimisation; power supply quality; bacterial foraging algorithm; distorted grid voltages; equivalent circuits; induction motor efficiency; loss segregation; power 1.5 kW; power quality; three-phase induction motor; voltage harmonic; Equivalent circuits; Harmonic analysis; Induction motors; Power system harmonics; Resistance; Stators; Voltage measurement; Bacterial foraging algorithm (BFA); harmonics; in situ efficiency estimation; induction motor;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/TEC.2014.2335994

Filename

6875914