Parameter Estimation of Wound-Rotor Induction Motors From Transient Measurements

A new method for determination of the steady-state equivalent circuit parameters of wound-rotor induction motors using experimental data from starting transient measurements is presented. The algorithm data are the stator currents and voltages and mechanical speed. The algorithm uses the least-squar...

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Bibliographic Details
Published in:IEEE transactions on energy conversion 2014-06, Vol.29 (2), p.300-308
Main Authors: Kojooyan-Jafari, Hengameh, Monjo, Lluis, Corcoles, Felipe, Pedra, Joaquin
Format: Article
Language:English
Subjects:
Algorithms
Current measurement
Direct power generation
Electric motors, Induction
Electric potential
Energia elèctrica
Energies
Enginyeria mecànica
Equations
Equivalent circuits
Error analysis
Flux
Induction motors
Mathematical analysis
Motors
Motors elèctrics
Rotors
Smoothing methods
Starting transients
Steady-state
Transient analysis
wound rotor induction motor
Àrees temàtiques de la UPC
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Summary:A new method for determination of the steady-state equivalent circuit parameters of wound-rotor induction motors using experimental data from starting transient measurements is presented. The algorithm data are the stator currents and voltages and mechanical speed. The algorithm uses the least-square method and motor dynamic equations in the synchronous reference frame. Moreover, an approximation of the rotor flux that improves the accuracy of the estimation method, as well as a detailed study of errors, is included. The estimation method is applied to starting transient measurement data of a 2 kW wound rotor induction motor, and the accuracy of the obtained parameters is verified by comparing steady-state torque- and current-slip curves calculated with the estimated parameters and those measured in the laboratory.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2014.2300236