Sensorless Direct Instantaneous Torque Control for Switched Reluctance Machines

Abstract This paper presents a position-sensorless torque controller for Switched Reluctance Machines (SRMs) based on Direct Instantaneous Torque Control (DITC). An indirect position estimation is developed based on a current-flux-linkage method to eliminate the need of the position encoder. The current-flux-linkage method has advantages of simplicity and requires a relatively short computation time. Therefore, the controller can be implemented with a high control bandwidth. The accuracy of position estimation and influences of estimation errors are studied. The functionality of the developed controller and its performance are investigated and verified by experiments over a wide operating range.

[1]  Adrian David Cheok,et al.  Indirect angle estimation in switched reluctance motor drive using fuzzy logic based motor model , 2000 .

[2]  Mehrdad Ehsani,et al.  Optimized instantaneous torque control of switched reluctance motor by neural network , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[3]  I. Husain,et al.  Four quadrant and zero speed sensorless control of a switched reluctance motor , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[4]  Jeffrey H. Lang,et al.  State observers for variable-reluctance motors , 1990 .

[5]  R.B. Inderka,et al.  High performance four-quadrant switched reluctance traction drive based on DITC , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[6]  G. Henneberger,et al.  Different models of the SRM in state space format for the sensorless control using a Kalman filter , 1998 .

[7]  A.V. Radun,et al.  An inductance profile demodulator based observer for sensorless control of switched reluctance motors , 2006, Twenty-First Annual IEEE Applied Power Electronics Conference and Exposition, 2006. APEC '06..

[8]  Mehrdad Ehsani,et al.  Elimination of position sensors in switched reluctance motor drives: state of the art and future trends , 2002, IEEE Trans. Ind. Electron..

[9]  G. Gallegos-Lopez,et al.  High-grade position estimation for SRM drives using flux linkage/current correction model , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[10]  Erkan Mese,et al.  An approach for sensorless position estimation for switched reluctance motors using artifical neural networks , 2002 .

[11]  R.B. Inderka,et al.  High dynamic direct average torque control for switched reluctance drives , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

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

[13]  Iqbal Husain,et al.  Torque ripple minimization in switched reluctance motors using adaptive fuzzy control , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[14]  R.B. Inderka,et al.  DITC-direct instantaneous torque control of switched reluctance drives , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[15]  M. Depenbrock,et al.  Direct self-control (DSC) of inverter-fed induction machine , 1988 .