ADVANCED LUMPED PARAMETER MODEL FOR SWITCHED RELUCTANCE MOTORS WITH HIGH PERFORMANCE COOLING
| Autor: | Jasper Nonneman, Stephan Schlimpert, Peter Sergeant, Nils Clarie, Ilya T'Jollyn, Michel De Paepe |
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| Rok vydání: | 2018 |
| Předmět: |
Electric motor
Technology and Engineering Materials science Computer simulation Stator Lumped parameter model Numerical simulation Mechanics Switched reluctance motor law.invention Finite element simulation High performance motor cooling Cross section (physics) law Electromagnetic coil Thermal Electronic equipment cooling 2D thermal finite element |
| Zdroj: | Ghent University Academic Bibliography Proceedings of the 16th International Heat Transfer Conference, IHTC-16 |
| ISSN: | 2377-4371 |
| DOI: | 10.1615/ihtc16.cms.023925 |
| Popis: | In this paper an advanced thermal lumped parameter model for a switched reluctance electric motor (SRM) is constructed, based on a 2D thermal finite element simulation of a radial cross section of the motor. When applying and combining advanced cooling methods such as direct coil cooling, end winding cooling (radial stretched) and spray cooling on an SRM, the conventional lumped parameter models can no longer be used due to the 3D and complex temperature gradients in the motor. In standard LP models, mostly one simple cooling method is implemented by which the thermal gradients are also quite simple (1D or 2D). When combining different cooling methods, the gradients become highly 3D and these LPM are no longer valid. To improve the accuracy of this problem, a fully 3D thermal finite element simulation could be performed, but this would unnecessarily increase effort, complexity and computational time. To avoid this an advanced lumped parameter model is constructed in this paper, such that the high thermal gradients are modeled in more detail. The results from one 2D finite element simulation of a radial cross section of half of a stator tooth are reduced to a simpler lumped parameter model with more nodes in the most crucial parts, i.e., where the highest thermal gradients are expected. The 2D thermal model is then expanded to a 3D lumped parameter model, including the gradients in axial direction. Using this model, various cooling configurations and geometry parameters can be varied easily such that the design of an SRM with advanced cooling can be optimized efficiently. |
| Databáze: | OpenAIRE |
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