Revista UIS Ingenierías

Vol. 18 No. 3 (2019): Revista UIS Ingenierías
Articles

Parameter estimation of induction motors from power losses measurements

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  • Julio Martin Duarte-Carvajalino,
  • Oscar Guerrero-Díaz,
  • Ciro Carvajal-Lavastida
Julio Martin Duarte-Carvajalino
Agrosavia
Oscar Guerrero-Díaz
Universidad Antonio Nariño
Ciro Carvajal-Lavastida
Universidad Antonio Nariño
DOI: https://doi.org/10.18273/revuin.v18n3-2019018

Published 2019-05-20

Keywords

  • efficiency,
  • power losses,
  • induction motor,
  • optimization

How to Cite

Duarte-Carvajalino, J. M., Guerrero-Díaz, O., & Carvajal-Lavastida, C. (2019). Parameter estimation of induction motors from power losses measurements. Revista UIS Ingenierías, 18(3), 175–182. https://doi.org/10.18273/revuin.v18n3-2019018
Copyright Notice

Abstract

The new labeling rule in Colombia RETIQ Art. 12 three-phase induction motors type squirrel cage for 60 Hz requires induction motors to specify their efficiency under nominal conditions. The International Electrotechnical Commission (IEC) indicates three ways to compute induction motor efficiency. One of these ways considers in detail each of the power losses in the motor. It is clear that from the standpoint of manufacturers it would be advantageous to know the power losses detailed to improve motor efficiency. Furthermore, the measurements made to compute power losses provide enough information to estimate the electrical parameters of induction motors, using optimization algorithms. This work explores parameter estimation of induction motors using the measurements indicated by the IEC to estimate power losses in induction motors. In particular, the algorithms of global optimization, harmony and hybrid genetic algorithms, produce consistent estimates of the electrical parameters of the induction motor. Once the electrical parameters of the induction motor are found, its performance can be modeled for any load condition, including transient states.           

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