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

fYear

2012

fDate

2-5 Sept. 2012

Firstpage

2799

Lastpage

2805

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICElMach.2012.6350283

Filename

6350283