3-D Multi-Nodal Thermal Modelling for Fault-Tolerant Machine

Safouene Ouenzerfi (1) , Hussein Zahr (2, 3) , Mohamed Trabelsi (3) , Riadh Boubaker (1) , Eric Semail (3) , Souad Harmand (1)

1 LAMIH - Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201
2 IRENAV - Institut de Recherche de l'Ecole Navale
3 L2EP - Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697

Even if intrinsically a five-phase machine can work with one opened phase, thermal constraints (temperatures in windings and Permanent Magnets) impose to decrease the mean torque in faulty operation mode. In order to elaborate optimum control which ensures safety and maximum torque, it is necessary to estimate in real-time the temperatures induced by the currents imposed in the remaining healthy windings of the machine. For a five-phase prototype, a multi-nodal thermal modelling which can take into account irregular losses and flow distribution has been developed. It is based on Electromagnetic FEM results for the losses and CFD calculation analysis. Results are presented in normal and faulty operation modes.

Mots clés: Thermal nodal model; SAME code; FEM electromagnetic simulation; Integrated drive; Fault operation mode

Domaines: Sciences de l'ingénieur [physics]

Safouene Ouenzerfi, Hussein Zahr, Mohamed Trabelsi, Riadh Boubaker, Eric Semail, et al.. 3-D Multi-Nodal Thermal Modelling for Fault-Tolerant Machine. 2019 IEEE International Conference on Industrial Technology (ICIT), 2019, melbourne, Australia. pp.1551-1556, ⟨10.1109/ICIT.2019.8755164⟩. ⟨hal-02498285⟩