Precise pulsewise current drive of SRM under PWM control

In this paper, precise pulsewise current drive for switched reluctance motor under subharmonic PWM voltage control is presented. Different from the conventional hysteresis current control, sub-harmonic PWM scheme enables to design switching frequency of converter. However, subharmonic PWM voltage control requires adequate voltage references, that is, PWM duty ratios according to given operating conditions. In the proposed control, the adequate voltage references are calculated from an analytical model of non-linear magnetizing curves of target motor. Some experimental investigations using 20kW SRM into drive performances under the proposed control are made from the viewpoints of torque ripple and vibration.

[1]  Hiroki Ishikawa,et al.  Torque Ripple Minimization with Instantaneous Current Feedback Compensation for Switched Reluctance Motors , 2012 .

[2]  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).

[3]  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.

[4]  T. Sebastian,et al.  A fixed switching frequency predictive current control method for switched reluctance machines , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[5]  S. Ogasawara,et al.  Torque Density and Efficiency Improvements of a Switched Reluctance Motor Without Rare-Earth Material for Hybrid Vehicles , 2011, IEEE Transactions on Industry Applications.

[6]  R. W. De Doncker,et al.  DITC-direct instantaneous torque control of switched reluctance drives , 2002 .

[7]  Akira Chiba,et al.  Torque density and efficiency improvements of a Switched Reluctance Motor without rare earth material for hybrid vehicles , 2010, 2010 IEEE Energy Conversion Congress and Exposition.

[8]  C. Pollock,et al.  GA-based computer aided autonomous electromagnetic design of switched reluctance servomotor drives , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[9]  R.B. Inderka,et al.  High-dynamic four-quadrant switched reluctance drive based on DITC , 2005, IEEE Transactions on Industry Applications.

[10]  B. G. Fernandes,et al.  Criteria for design of high performance switched reluctance motor , 2012, 2012 XXth International Conference on Electrical Machines.