
handle: 11583/2859241
The fault-tolerant capability is a prerequisite for electrical safety-critical applications. In this regard, multi-phase induction motors are well-known actuators used to provide this feature. Compared to conventional three-phase machines with distributed windings, induction machines having concentrated windings could be more fault-tolerant because of increasing the number of phases. In addition, concentrated windings have shorter end-winding and less required copper weight which makes it a lower cost solution compared to distributed windings. However, concentrated windings adversely increase the distortion of the air gap flux density which affects motor performances. In this paper, a pseudo-concentrated winding layout has been proposed for six-phase squirrel-cage induction motors to improve performances compared to conventional concentrated windings. Winding function and equivalent circuit methods are used to analytically calculate performances. Finally, time-stepping finite element method and experimental measurements have been presented to confirm obtained analytical results.
analytical modeling; concentrated winding; distributed winding; fault-tolerance; finite element analysis; performance calculation; pseudo-concentrated winding; Squirrel-cage induction machine; symmetrical six-phase system; winding function analysis
analytical modeling; concentrated winding; distributed winding; fault-tolerance; finite element analysis; performance calculation; pseudo-concentrated winding; Squirrel-cage induction machine; symmetrical six-phase system; winding function analysis
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