Design analysis of permanent magnet DC motors with differingarmature, magnet and yoke lengths


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    • IEEE  status
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      Views: (2006)   Date: (Publication Date: 8-11 Jan 199...)   Pages: ()
    • Author:  Narayanan  S.S. Narayanan  V. Anandukumaran  K.R. Dept. of Electr. Eng.  Indian Inst. of Technol.  Madras;  

    • Abstract:  Abstract A modified magnetic circuit method and a 2-D finite element procedure are presented for the analysis of DC permanent magnet motors with a differing armature, magnet and yoke lengths including nonlinear material behaviour of steel and permanent magnet. A 12 volt, 120 watts motor is analyzed through these methods and compared with experimental results of a prototype sample. In the case of finite element analysis, commutation effects and short chording of armature winding are treated appropriately, and cogging torque and voltage ripple are predicted

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