Torque ripple optimization in switched reluctance motor using two-phase model and optimization search technique

N. Bhiwapurkar, N. Mohan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

A torque ripple optimization scheme for SRM drive, based on exhaustive search method and 2-phase excitation model of SRM has been presented in this paper. The 2-phase excitation model of SRM used here takes into account the nonlinear effects because of saturation and mutual flux linkages caused by multi-phase excitation. In the proposed scheme the incoming and outgoing phase currents are modulated to minimize the torque ripple. Because of the highly nonlinear nature of torque, exhaustive search method is used for optimizing the torque ripple, by simulating the model multiple times. Modulation of phase current is done by addition, subtraction and multiplication of constants and variables. This can be very easily achieved in DSP micro-controllers and FPGAs. It has been shown by simulations, that the proposed optimization scheme reduces the torque ripple by more than 50% as compared to constant current scheme. The proposed optimization scheme has been experimentally validated.

Original languageEnglish (US)
Title of host publicationInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006
Pages340-345
Number of pages6
DOIs
StatePublished - 2006
EventInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006 - Taormina, Italy
Duration: May 23 2006May 26 2006

Publication series

NameInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006
Volume2006

Other

OtherInternational Symposium on Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006
CountryItaly
CityTaormina
Period5/23/065/26/06

Keywords

  • Exhaustive search technique
  • Optimization
  • SRM
  • Torque ripple
  • Two-phase model

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