牵引电动机
机械工程
电动机
传热
水冷
定子
汽车工程
对流换热
牵引(地质)
计算机科学
散热片
工程类
机械
物理
作者
Peer-Ole Gronwald,Thorsten A. Kern
出处
期刊:IEEE Transactions on Transportation Electrification
日期:2021-12-01
卷期号:7 (4): 2892-2913
被引量:48
标识
DOI:10.1109/tte.2021.3075844
摘要
More efficient cooling systems are an enabler for the increase in power density in an electric traction motor. Contemplating to existing reviews, this article presents a comprehensive collection of heat transfer mechanisms for the different heat removal techniques used in electric traction motors. In this article, an overview of various cooling concepts in existing and future traction motors is presented, and the cooling approaches are compared. The following literature review compiles geometry-based calculation formulas of the different mechanisms of cooling heat transfer applied in motor technology. Furthermore, general heat transfer phenomena appearing in electric traction motors are reviewed and compiled for easy access. Various specifically relevant aspects, including rotor shaft cooling, different spray cooling concepts, different air convection phenomena, bearing heat transfer, and the stator-housing contact, are examined in more detail. For validation of the review result, based on a well-known motor design, thermal analysis and comparison of the different cooling methods are carried out. Modeling is done with a lumped parameter thermal network (LPTN). This article concludes by demonstrating the advantages and disadvantages of the different cooling concepts based on the collection of modeling data.
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