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.

UR - http://www.scopus.com/inward/record.url?scp=85046949426&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85046949426&partnerID=8YFLogxK

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 -