Now showing items 1-5 of 5

    • Ehsani, Mehrdad; Arefeen, Mohammed S.; Lipo, Thomas A. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 1995-09-05)
      A discrete position sensor elimination technique for a sinusoidally wound synchronous reluctance motor drive uses induced voltage, phase currents, and excitation frequency to estimate rotor position at all speeds, including ...
    • Ehsani, Mehrdad; Fahimi, Babak (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2005-07-26)
      According to one embodiment of the invention, a method includes generating, by a computer, a phase current profile, generating a phase current according to the phase current profile, and applying the phase current to the ...
    • Ehsani, Mehrdad (United States. Patent and Trademark Office; Texas A&M University. Libraries, 1995-04-25)
      Apparatus and method for detecting rotor (12) position in a switched reluctance motor (18) having multiple stator phases (A-A', B-B', and C-C'). A multiplexer (48) intermittently connects a known resistor (54) to a ...
    • Ehsani, Mehrdad (United States. Patent and Trademark Office; Texas A&M University. Libraries, 1994-03-01)
      Apparatus and method for detecting rotor (12) position in a switched reluctance motor (18) having multiple stator phases (A--A', B--B', and C--C'). A multiplexer (48) intermittently connects a known resistor (54) to a ...
    • Ehsani, Mehrdad (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2002-10-29)
      A system and method for controlling a switched-reluctance motor, in which a control variable is selected for controlling a figure of merit of the motor. The motor is then operated at a first value of the control variable. ...