Preliminary Studies and Test Results of a Superconducting Hysteresis Motor with Multiphase Windings and Variable Number of Magnetic Poles

Raul Dionísio (1) , João Murta Pina (1) , David Inácio (1) , Amadeu Leão Rodrigues (1)

1 ULISBOA - Universidade de Lisboa = University of Lisbon

In this paper a procedure for determining the number of different synchronous speeds that can be obtained from the stator of a drum motor as a function of the number of slots is presented. This preliminary study is foreseen for a hysteresis high-temperature superconducting motor, but the approach is directly applied in conventional motors. The targeted device has multiphase windings, in order to achieve full flexibility in torque-speed space through electronic variation of magnetic poles. Simulations are performed in order to achieve a qualitative understanding of the behaviour of the motor, namely in what concerns to torque and settling times from initial to synchronous speed. A prototype with eighteen slots in the stator and a bulk YBCO rotor is described and built, and experimental values of torque are obtained.

Mots clés: Superconducting hysteresis motor; Electronic pole variation; multiphase motor

Domaines: Informatique [cs]

Raul Dionísio, João Murta Pina, David Inácio, Amadeu Leão Rodrigues. Preliminary Studies and Test Results of a Superconducting Hysteresis Motor with Multiphase Windings and Variable Number of Magnetic Poles. 4th Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS), Apr 2013, Costa de Caparica, Portugal. pp.431-440, ⟨10.1007/978-3-642-37291-9_46⟩. ⟨hal-01348788⟩