Performance analysis of field-oriented control and direct torque control for sensorless induction motor drives

This paper presents a contribution for detailed comparison between two sensorless control techniques for high performance induction motor drives: Field-oriented control (FOC) and direct torque control (DTC). The main characteristics of field-oriented control and direct torque control schemes are studied by simulation emphasizing their advantages and disadvantages. The performances of the two control schemes are evaluated in terms of torque and current ripples, and transient responses to load toque variation. We can nevertheless say that the two control schemes provide in their basic configuration, comparable performances regarding the torque control and parameter sensitivity. We can note a slight advance of DTC scheme compared to FOC scheme regarding the dynamic flux control performance and the implementation complexity. The choice of one or the other scheme will depend mainly on specific requirements of the application.

[1]  Barry W. Williams,et al.  A comparison of vector control and direct torque control of an induction machine , 2000, 2000 IEEE 31st Annual Power Electronics Specialists Conference. Conference Proceedings (Cat. No.00CH37018).

[2]  F. Naceri,et al.  Speed sensorless DTC of induction motor based on an improved adaptive flux observer , 2005, 2005 IEEE International Conference on Industrial Technology.

[3]  Jan Melkebeek,et al.  Speed sensorless direct torque control of induction motors using an adaptive flux observer , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[4]  A. Tani,et al.  FOC and DTC: two viable schemes for induction motors torque control , 2002 .

[5]  J. L. Machl,et al.  A comparative study of field-oriented and direct-torque control of induction motors reference to shaft-sensorless control at low and zero-speed , 2002, Proceedings of the IEEE Internatinal Symposium on Intelligent Control.

[6]  F. Blaabjerg,et al.  A modified direct torque control (DTC) for induction motor sensorless drive , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[7]  Hoang Le-Huy.  Comparison of field-oriented control and direct torque control for induction motor drives , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[8]  Toshihiko Noguchi,et al.  A New Quick-Response and High-Efficiency Control Strategy of an Induction Motor , 1986, IEEE Transactions on Industry Applications.

[9]  David G. Ward,et al.  An antiwindup approach to enlarging domain of attraction for linear systems subject to actuator saturation , 2002, IEEE Trans. Autom. Control..

[10]  F. Khoucha,et al.  Experimental performance analysis of adaptive flux and speed observers for direct torque control of sensorless induction motor drives , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[11]  Luca Zaccarian,et al.  Nonlinear scheduled anti-windup design for linear systems , 2004, IEEE Transactions on Automatic Control.