Dynamic optimisation of switching points in switched reluctance drives

A new technique for maximising torque capability and improving efficiency of switched reluctance machines (SRMs) is presented. Many SRM control schemes are based on current control, but the new technique exploits the linearity of flux control. The approach makes use of new methods of constraining flux demands according to available torque given by machine characteristics, and does not require any additional feedback signals; only current and rotor position are required. The implementation of the novel technique is described in detail along with simulation results to demonstrate its operation.

[1]  Christos Mademlis,et al.  Gain-Scheduling Regulator for High-Performance Position Control of Switched Reluctance Motor Drives , 2010, IEEE Transactions on Industrial Electronics.

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

[3]  Yihua Hu,et al.  Low-cost direct instantaneous torque control for switched reluctance motors with bus current detection under soft-chopping mode , 2016 .

[4]  James S. Thorp,et al.  Instantaneous Torque Control of Electric Motor Drives , 1987, IEEE Transactions on Power Electronics.

[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]  Wei Zhang,et al.  A high efficiency direct instantaneous torque control of SRM using commutation angles control , 2014, 2014 17th International Conference on Electrical Machines and Systems (ICEMS).

[7]  B. G. Fernandes,et al.  Modified direct instantaneous torque control of switched reluctance motor with high torque per ampere and reduced source current ripple , 2014, 2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA).

[8]  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).

[9]  F. Blaabjerg,et al.  A new energy optimizing control strategy for switched reluctance motors , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.

[10]  Volker Pickert,et al.  Improving direct instantaneous torque control of switched reluctance machines with predictive flux constraints , 2016 .

[11]  R.W. De Doncker,et al.  Multiphase Torque-Sharing Concepts of Predictive PWM-DITC for SRM , 2007, 2007 7th International Conference on Power Electronics and Drive Systems.

[12]  Nisai H. Fuengwarodsakul,et al.  Predictive PWM-based Direct Instantaneous Torque Control of Switched Reluctance Drives , 2006 .

[13]  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).