TY - GEN
T1 - Development of a robust sliding mode observer for the rotor time constant inverse of the induction motor
AU - Comanescu, Mihai
PY - 2018/4/27
Y1 - 2018/4/27
N2 - The paper presents a method to estimate the inverse of the rotor time constant of the induction motor. Estimation is done using a sliding mode observer which is developed based on the model of the motor in the synchronous reference frame. The method considers that the flux magnitude is known - this is estimated using a voltage model observer. In addition, the field-orientation angle is available; with this, the currents id and iq are used to generate the feedback terms of the observer. The observer needs a speed signal and, since speed should not be measured, it is fed with a speed estimate (which is assumed inaccurate). Under these conditions, it is normal to have an inaccurate output; however, the paper proposes a gains design that allows to reduce the error in the estimated rotor time constant. Simulations and experiments validate the design.
AB - The paper presents a method to estimate the inverse of the rotor time constant of the induction motor. Estimation is done using a sliding mode observer which is developed based on the model of the motor in the synchronous reference frame. The method considers that the flux magnitude is known - this is estimated using a voltage model observer. In addition, the field-orientation angle is available; with this, the currents id and iq are used to generate the feedback terms of the observer. The observer needs a speed signal and, since speed should not be measured, it is fed with a speed estimate (which is assumed inaccurate). Under these conditions, it is normal to have an inaccurate output; however, the paper proposes a gains design that allows to reduce the error in the estimated rotor time constant. Simulations and experiments validate the design.
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U2 - 10.1109/ICIT.2018.8352207
DO - 10.1109/ICIT.2018.8352207
M3 - Conference contribution
AN - SCOPUS:85046949426
T3 - Proceedings of the IEEE International Conference on Industrial Technology
SP - 377
EP - 382
BT - Proceedings - 2018 IEEE International Conference on Industrial Technology, ICIT 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 19th IEEE International Conference on Industrial Technology, ICIT 2018
Y2 - 19 February 2018 through 22 February 2018
ER -