General Characteristic of Fractional Slot Double Layer Concentrated Winding Synchronous Machine

Seo, Un-Jae;Chun, Yon-Do;Choi, Jae-Hak;Chung, Shi-Uk;Han, Pil-Wan;Koo, Dae-Hyun

  • Received : 2012.03.18
  • Accepted : 2012.08.10
  • Published : 2013.03.01


The concentrated winding configurations offer significant advantage for reducing end windings. These machines are generally used in low speed high torque application due to relatively low copper loss. However, numbers of fractional slot construction make the designer hard to properly choose pole and slot numbers for the certain application. This paper provides the general information of possible fractional slot concentrated double layer winding machine.


Fractional slot;Concentrated winding;SPMSM;Saturation


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