Low-power motors for use in auxiliary drives may have rotors with many poles made of different magnetically hard materials: barium hexaferrit or rare-earth materials such as samarium-cobalt or neodymium-iron-boron composites. The proposed calculation method permits estimates of the magnetic characteristics and a comparison of the two motor designs. The equations used are derived from the equivalent circuit of the magnetic system. For an example with given motor dimensions, the induction in the air gap for both types of the motor are numerically determined. The results show that rare-earth magnets permit significant reduction in rotor mass and moment of inertia, with simultaneous increase in motor torque. The mathematical apparatus permits the design of step or synchronous motors whose parameters and design are competitive in the desired field. The calculation method has been used in formulating design documentation for motors and developing equipment for their mass production.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Step and synchronous motors for auxiliary auto drives


    Additional title:

    Schritt- und Synchronmotoren für Kraftfahrzeughilfsantriebe


    Contributors:

    Published in:

    Publication date :

    2004


    Size :

    6 Seiten, 5 Bilder, 2 Quellen



    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




    Axial flux interior PM synchronous motors for electric vehicle drives

    Zhang, Z. / Profumo, F. | British Library Conference Proceedings | 1994


    Motors & drives

    Online Contents | 1994




    Advanced motors and drives

    Electric Power Research Institute | British Library Conference Proceedings | 1992