ROTOR POSITION SENSING IN SWITCHED RELUCTANCE MOTOR-DRIVES BY MEASURING MUTUALLY INDUCED VOLTAGES Conference Paper uri icon

abstract

  • IEEE. This paper describes a new method of indirect rotor position sensing for switched reluctance motor (SRM) drives. The principle is based on the mutually induced voltages in phases adjacent to the energized phase of an SRM. The mutually induced voltage in the 'off' phase varies significantly as the rotor, corresponding to the energized stator, moves from its unaligned position towards complete alignment. This mutually induced voltage variation is captured by a simple electronic circuit and then processed in a microcontroller to determine, the commutation instants, thereby eliminating the need for direct rotor position sensors in an SRM. Successful operation of a four-phase SRM drive has been demonstrated in the laboratory using this mutual voltage (MV) technique of indirect rotor position sensing. The theoretical aspects of mutually induced voltages in an SRM and the relevant experimental results is presented in this paper.

name of conference

  • Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting

published proceedings

  • CONFERENCE RECORD OF THE 1992 IEEE INDUSTRY APPLICATIONS SOCIETY ANNUAL MEETING, VOLS 1 AND 2

author list (cited authors)

  • EHSANI, M., & HUSAIN, I.

citation count

  • 20

complete list of authors

  • EHSANI, M||HUSAIN, I

publication date

  • January 1992