Luenberger observer based sensorless Indirect FOC with stator resistance adaptation

In the last years, several Field Oriented Control (FOC) methods of induction motors without rational transducers have been proposed. The major drawback of most of these methods is there sensitivity to motor parameters variations especially the stator resistance that affects the drive performances at low speeds. Therefore, simultaneous estimation of rotor speed and stator resistance from measured stator terminal voltages and currents is proposed using Luenberger adaptive observer approach. The stability of this observer is proved by the Lyapunov's theorem and the feasibility of the proposed method is verified by simulation under Matlab /Simulink.

[1]  Hassane Mahmoudi,et al.  The Effect of Stator Resistance Variation on DTFC of Induction Motor and its Compensation , 2007, 2007 14th IEEE International Conference on Electronics, Circuits and Systems.

[2]  D. Luenberger.  An introduction to observers , 1971 .

[3]  D. S. Zinger,et al.  PI and fuzzy estimators for tuning the stator resistance in direct torque control of induction machines , 1994 .

[4]  K. Matsuse,et al.  New adaptive flux observer of induction motor for wide speed range motor drives , 1990, [Proceedings] IECON '90: 16th Annual Conference of IEEE Industrial Electronics Society.

[5]  Hassane Mahmoudi,et al.  High-Gain Observer Compensator for Rotor Resistance Variation On Induction Motor RFOC , 2007, 2007 14th IEEE International Conference on Electronics, Circuits and Systems.

[6]  Abdelhadi Elbacha,et al.  A Comparative Study of Rotor Time Constant Online Identification of an Induction Motor Using High Gain Observer and Fuzzy Compensator , 2012 .

[7]  C. Xiao.  Speed Sensorless Control of Induction Motors , 2008 .

[8]  M. Trabelsi,et al.  Robustness and limitations of sensorless technique based on Luenberger state-Observer for induction motor drives under inverter faults , 2011, 2011 IEEE International Symposium on Industrial Electronics.

[9]  Werner Leonhard,et al.  Control of Electrical Drives , 1990 .

[10]  Han Li,et al.  A Novel Adaptive Scheme for Stator Resistance Estimation in Sensorless Induction Motor Drives , 2006, 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference.

[11]  R. E. Kalman,et al.  Contributions to the Theory of Optimal Control , 1960 .

[12]  Mohamed Boussak,et al.  A high-performance sensorless indirect stator flux orientation control of induction motor drive , 2006, IEEE Transactions on Industrial Electronics.

[13]  L. Chang,et al.  Stability conditions of adaptive pseudo-reduced-order flux observer for vector-controlled sensorless IM drives , 2004, Canadian Conference on Electrical and Computer Engineering 2004 (IEEE Cat. No.04CH37513).

[14]  Seung-Ki Sul,et al.  Speed sensorless vector control of an induction motor using an extended Kalman filter , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.