Title :
Sensorless induction motor parameter identification and control
Author :
Cortajarena, J.A. ; De Marcos, J. ; Alvarez, P. ; Vicandi, F.J.
Author_Institution :
EUITI, UPV-EHU, Eibar, Spain
Abstract :
In this paper, a sensorless induction motor parameter identification is presented. Sensorless control employs a variety of estimators and observers of motor speed, torque and fluxes, and accurate information about motor parameters is crucial to obtain a high performance control. The parameters of the induction motor equivalent circuit are obtained by means of DC an AC tests using the voltage-source inverter. When these parameters are estimated a closed loop flux estimator and an open loop speed estimator are implemented to determine the mechanical parameters of the machine. The parameter estimation procedure has been simulated and tested in a 7.5 kW induction motor. With the obtained parameters a sensorless control was implemented.
Keywords :
closed loop systems; induction motors; invertors; machine vector control; observers; open loop systems; parameter estimation; AC tests; DC tests; closed loop flux estimator; induction motor equivalent circuit; motor control; motor speed; observers; open loop speed estimator; power 7.5 kW; sensorless induction motor parameter identification; voltage-source inverter; Circuit simulation; Circuit testing; Equivalent circuits; Induction motors; Inverters; Open loop systems; Parameter estimation; Sensorless control; Torque control; Voltage;
Conference_Titel :
Industrial Technology (ICIT), 2010 IEEE International Conference on
Conference_Location :
Vi a del Mar
Print_ISBN :
978-1-4244-5695-6
Electronic_ISBN :
978-1-4244-5696-3
DOI :
10.1109/ICIT.2010.5472768
