Experimental evaluation of the voltage unbalance in the efficiency of induction motors

Johnny Rengifo, Henryke Salazar, Alexander Bueno, José M. Aller

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

This paper presents an experimental evaluation of the voltage unbalances effects in the efficiency of induction motors. In that sense, two distinct National Electrical Manufacturers Associations (NEMA) design were evaluated to seek the changes on their performance. The voltage unbalance was assessed using the Complex Voltage Unbalance Factor (CVUF). The experimental methodology consisted in a segregation losses approach to study the stator, core, friction, rotor, and stray-load losses clearly. First, a no-load test was carried out in both motors keeping constant the magnitude and the angle of CVUF. Next, a load test was accomplished ranging the mechanical load from 120% down to 30% of the nominal load using the same CVUF of the no-load test. Finally, according to the results of NEMA design B motor has the greatest losses increment because it was the most affected by the skin effect.

Original languageEnglish
Title of host publication2017 3rd IEEE Workshop on Power Electronics and Power Quality Applications, PEPQA 2017 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509066780
DOIs
StatePublished - 14 Jul 2017
Event3rd IEEE Workshop on Power Electronics and Power Quality Applications, PEPQA 2017 - Bogota, Colombia
Duration: 31 May 20172 Jun 2017

Publication series

Name2017 3rd IEEE Workshop on Power Electronics and Power Quality Applications, PEPQA 2017 - Proceedings

Conference

Conference3rd IEEE Workshop on Power Electronics and Power Quality Applications, PEPQA 2017
Country/TerritoryColombia
CityBogota
Period31/05/172/06/17

Keywords

  • CVUF
  • Efficiency
  • Induction motor
  • Power Quality
  • VUF

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