Unified Control of Switched Reluctance Motors for Wide Speed Operation

Tausif Husain, Ali Elrayyah, Ali Elrayyah, Iqbal Husain

Research output: Contribution to journalArticle

5 Citations (Scopus)


In this paper, a unified controller for switched-reluctance motors is proposed for wide speed operations. In the proposed controller, overlapping regions between the phases are controlled such that direct instantaneous torque control (DITC) and current control (CC) can be implemented simultaneously on different phases. This simplifies the torque sharing during commutation and minimizes torque ripple due to imperfect current tracking and mutual torque. A demagnetization curve concept to demagnetize the phase currents at an optimum angle is introduced to ensure high torque per ampere and single pulse mode operation. This results in extending low ripple operation to medium speed ranges. The seamless combination of DITC, CC and the demagnetization curves lead to torque ripple minimization, automatic excitation angle control and smooth operation over wide speed range. The effectiveness of the proposed unified controller is verified through simulation and experimental studies.

Original languageEnglish
JournalIEEE Transactions on Industrial Electronics
Publication statusAccepted/In press - 7 Jul 2018



  • Direct Torque Control
  • Excitation Angles
  • Switched Reluctance Motor
  • Torque Ripple
  • Wide Speed Operation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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