Estimación de la potencia en el eje del motor operando bajo desequilibrio y armónicos en la tensión (Shaft Power Estimation in Induction Motor Operating Under Unbalanced and Harmonics Voltages)

Vladimir Sousa Santos (vsousa1@cuc.edu.co)3, Percy R. Viego Felipe (pviego@ucf.edu.cu)1, Julio R. Gómez Sarduy (jgomez@ucf.edu.cu)1, Enrique C. Quispe (ecquispe@uao.edu.co)2, Milen Balbis (mbalbis1@cuc.edu.co)3


1Universidad de Cienfuegos
2Universidad Autónoma de Occidente
3Universidad de la Costa (CUC)

This paper appears in: Revista IEEE América Latina

Publication Date: May 2016
Volume: 14,   Issue: 5 
ISSN: 1548-0992


Abstract:
In this work the application of a method to estimate the shaft power of induction motors operating in the presences of unbalanced and harmonics voltages is presented. The method uses the steady state equivalent circuits, with some considerations for the analysis of motor performance, fed with unbalanced and harmonic voltages. The parameters of circuits are determined with low invasiveness, by applying a Bacterial Foraging Algorithm as technique of evolutionary search. With this, the shaft power can be estimated at any operating point. The method was tested in a 12.6 kW motor working in an industrial power supply grid, with harmonics and unbalanced voltage.

Index Terms:
Equivalent circuits, harmonic analysis, induction motors, industrial power systems, power quality, parameter estimation, unbalanced voltage   


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