Design of a Six-Phase Squirrel Cage Induction Motor with Pseudo-Concentrated Windings

Concentrated windings have several advantages over conventional distributed windings. However, the recent attempts to apply concentrated windings to multi-phase induction motors in the literature resulted in poor performance because of imperfect spatial distribution of the air gap MMF. The pseudo-concentrated winding is an alternative, which produces better performances compared to the conventional concentrated windings in the induction motor applications. However, using pseudo-concentrated windings in prefabricated induction motor cores is not appropriate. Accordingly, the motor should be specifically designed for applying pseudo-concentrated winding considering features such as short end-winding length and low MMF amplitude compared to the distributed windings.