Torque-Speed Characteristic Improvement in Nineteen-phase Induction Machine with Special Phase Connection

Abdelhak Mekahlia (1, 2) , Eric Semail (1) , Franck Scuiller (3) , Hussein Zahr (2)

1 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697
2 VeDeCom - VEhicule DEcarboné et COmmuniquant et sa Mobilité
3 IRENAV - Institut de Recherche de l'Ecole Navale

Multiphase induction machines are advantageous regarding speed range extension in comparison with three-phase induction machines. This paper investigates how to choose the connection between stator phases for a multiphase induction machine allowing to extend the Torque-Speed characteristic of the machine, for traction application. A nineteen-phase induction machine with special phase connection is proposed. This topology is compared to a three-phase machine, with the same global volume, using a Finite-Element approach. The results show a significant extension of the Torque-Speed characteristic horizontally, by speed range extension, and vertically, by maximum torque enhancement, thanks to the pole-changing operation with the chosen phase connection.

Mots clés: Multiphase Induction Machine; Pole-changing; Speed Range Extension; Stator Phase Connection; Torque Enhancement; Traction application

Domaines: Energie électrique

Abdelhak Mekahlia, Eric Semail, Franck Scuiller, Hussein Zahr. Torque-Speed Characteristic Improvement in Nineteen-phase Induction Machine with Special Phase Connection. ICEM, Aug 2020, Gothenburg, Sweden. pp.2159-2165. ⟨hal-03018970⟩