Off-line identification of PWM driven induction motors using reference voltages

In this work we present a method for off-line identification of induction motors with PWM drives, i.e., the standstill estimation of all its electrical parameters. The method is achieved when we digitize the PWM driven induction motor model by considering the PWM signal from the inverter as a sequen...

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Bibliographic Details
Published inIEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02 Vol. 3; pp. 2057 - 2062 vol.3
Main Authors do Prado, A., Heerdt, J.A., Junior, S.I.S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2002
Subjects
Inductance
Induction motors
Parameter estimation
Power system modeling
Pulse width modulation
Pulse width modulation inverters
Rotors
Stators
Velocity measurement
Voltage
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Summary:In this work we present a method for off-line identification of induction motors with PWM drives, i.e., the standstill estimation of all its electrical parameters. The method is achieved when we digitize the PWM driven induction motor model by considering the PWM signal from the inverter as a sequence of continuous impulses. The PWM inverter nonlinearity caused by the turn on/off time dependency of the current level in the switching transistors is modeled, allowing the method to be based only on reference voltages and measured currents. Simulation and experimental results illustrate the methodology.
ISBN:0780374746
9780780374744
DOI:10.1109/IECON.2002.1185289