Elektrotechnisches Institut (ETI)

Cascaded Design Methodology for Switched Reluctance Motors Considering Optimum Control

  • Autor:

    Mario Greule, Martin Doppelbauer

  • Quelle:

    International Electric Machines and Drives Conference (IEMDC). Coeur D'Alene, Idaho.

  • Datum: 10. - 13.05.2015
  • Switched reluctance motors (SRM) have a
    cheap and robust structure, which makes them interesting for
    electric vehicle applications. In this paper, a new optimization
    scheme for the design of SRM is proposed. The design
    methodology is then used to design a 127 kW high speed SRM
    for electric vehicles. The optimization procedure has a
    cascaded structure with a geometry optimization as the outer
    loop and a new control optimization as the inner loop. This
    new control scheme ensures maximum efficiency with the
    constraint of a minimum torque ripple by developing a
    current profile, which considers the non-linear behavior of the
    switched reluctance motor and the declining current dynamics
    with increasing speed. The control scheme is used to evaluate
    rated power and motor efficiency of the relevant operating
    points within the outer geometry optimization of the design
    methodology.