Thermal Model of Totally Enclosed Water-Cooled Permanent-Magnet Synchronous Machines for Electric Vehicle Application
- 6 March 2015
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Industry Applications
- Vol. 51 (4), 3020-3029
- https://doi.org/10.1109/tia.2015.2409260
Abstract
Totally enclosed water-cooled permanent magnet machines have been widely applied in electric vehicles due to their advantages of high torque density, high power factor, and strong overloading capacity. However, this type of machine often suffers from extremely high ambient temperature in a very limited space, which may lead to serious faults during operation, such as demagnetization. In order to study the thermal performance in depth, after investigation on the air convection within end-space, this paper presents a thermal model which takes into account the influence of the air temperature within the end-space on the temperature distribution by convection. Combining electromagnetic finite-element analysis with thermal resistance network, the thermal model is established, which is based on the law of heat flux balance in two continuous iterative calculations. Furthermore, computational fluid dynamic technology and experiments are implemented to further validate the proposed thermal model.Keywords
Funding Information
- National Science Foundation of China (51337004)
This publication has 29 references indexed in Scilit:
- Characterizing the convective wall heat transfer on convoluted shapes in the end-region of an induction machinePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2012
- Air-Gap Convection in Rotating Electrical MachinesIEEE Transactions on Industrial Electronics, 2010
- End Space Heat Transfer Coefficient Determination for Different Induction Motor Enclosure TypesIEEE Transactions on Industry Applications, 2009
- Evolution and Modern Approaches for Thermal Analysis of Electrical MachinesIEEE Transactions on Industrial Electronics, 2009
- Convection Heat Transfer and Flow Calculations Suitable for Electric Machines Thermal ModelsIEEE Transactions on Industrial Electronics, 2008
- Solving the More Difficult Aspects of Electric Motor Thermal Analysis in Small and Medium Size Industrial Induction MotorsIEEE Transactions on Energy Conversion, 2005
- TEFC Induction Motors Thermal Models: A Parameter Sensitivity AnalysisIEEE Transactions on Industry Applications, 2005
- BLDC motor stator and rotor iron losses and thermal behavior based on lumped schemes and 3-D FEM analysisIEEE Transactions on Industry Applications, 2003
- A comparison between the axial flux and the radial flux structures for PM synchronous motorsIEEE Transactions on Industry Applications, 2002
- Electrical-thermal coupled calculation of an asynchronous machineElectrical Engineering, 1994