Title :
Analytical thermal modelling of axial flux permanent magnet synchronous machines
Author :
Verez, Guillaume ; Tiegna, Huguette ; Barakat, Georges ; Hoblos, Ghaleb
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Le Havre, Le Havre, France
Abstract :
A 3D analytical thermal model of axial flux permanent magnet synchronous machines is developed. It consists in subdividing the machine geometry into small volumes that are considered to be homogeneous and isotherm. Heat capacities and thermal conductivities are deduced from experience and finite volume method calculations (COSMOSFloWorks®). Heat capacities and heat transfer coefficients are temperature-dependent, as losses are. This feature is taken into account in the integration of the differential equation system governing the thermal behaviour of the machine in such a manner that it decreases simulation time. This resolution allows a fast computation of the machine´s thermal behaviour and to predict its design´s feasibility.
Keywords :
differential equations; finite volume methods; geometry; heat transfer; integration; permanent magnet machines; specific heat; synchronous machines; 3D analytical thermal model; COSMOSFloWorks; axial flux permanent magnet synchronous machine; differential equation; finite volume method calculation; heat capacity; heat transfer coefficient; integration; loss; machine geometry; temperature-dependent; thermal conductivity; Analytical models; Heat transfer; Heating; Mathematical model; Rotors; Stators; Analytical models; Permanent magnet machines; Thermal analysis; Thermal conductivity;
Conference_Titel :
Electrical Machines (ICEM), 2012 XXth International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4673-0143-5
Electronic_ISBN :
978-1-4673-0141-1
DOI :
10.1109/ICElMach.2012.6350283
