Modeling of a saturated switched reluctance motor using an operating point analysis and the unsaturated torque equation

This paper describes torque production in a saturated switched reluctance motor (SRM). The paper begins by deriving the equations for torque if the SRM is unsaturated. It then develops an operating point model for torque in a saturated SRM using the unsaturated form of the torque equation. This results in a methodology which makes the control algorithms applicable to either saturated or unsaturated SRMs.

[1]  Timothy J. E. Miller,et al.  Switched Reluctance Motors and Their Control , 1993 .

[2]  J. W. Finch,et al.  Performance prediction in saturated variable reluctance and hybrid motors , 1990 .

[3]  A. Sabanovic,et al.  Torque ripple minimization of a switched reluctance motor , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[4]  R. S. Wallace,et al.  A balanced commutator for switched reluctance motors to reduce torque ripple , 1992 .

[5]  G. Tadmor,et al.  Low torque ripple control of current-fed switched reluctance motors , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[6]  Robert D. Lorenz,et al.  Complex rotating vector method for smooth torque control of a saturated switched reluctance motor , 1999, Conference Record of the 1999 IEEE Industry Applications Conference. Thirty-Forth IAS Annual Meeting (Cat. No.99CH36370).

[7]  T.J.E. Miller,et al.  High-grade control of switched reluctance machines , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[8]  R.D. Lorenz,et al.  Rotating vector methods for sensorless, smooth torque control of a switched reluctance motor drive , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[9]  Iqbal Husain,et al.  Torque ripple minimization in switched reluctance motor drives by PWM current control , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[10]  Corrado Guarino Lo Bianco,et al.  Modeling and control strategies for a variable reluctance direct-drive motor , 1993, IEEE Trans. Ind. Electron..

[11]  Tian-Hua Liu,et al.  Modeling and torque pulsation reduction for a switched reluctance motor drive system , 1996, Proceedings of the 1996 IEEE IECON. 22nd International Conference on Industrial Electronics, Control, and Instrumentation.

[12]  I. Husain,et al.  Torque ripple minimization in switched reluctance machines over a wide speed range , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.