Direct Oil Cooling of End-Windings in Torus-Type Axial-Flux Permanent-Magnet Machines
Direct Oil Cooling of End-Windings in Torus-Type Axial-Flux Permanent-Magnet Machines
复制标题
环形轴向磁通永磁电机端部绕组的直接油冷
DOI：
10.1109/ecce.2019.8912993
复制
发表时间：
2019
期刊：
影响因子：
--
通讯作者：
F. Caricchi
中科院分区：
文献类型：
--
作者：
Federico Marcolini;G. Donato;F. Caricchi
对于高功率密度应用，例如电动或混合动力电动车辆，由于严格的机器体积规格，排热是电机设计中的关键方面。在这些情况下，如果可能的话，当使用传统的冷却系统（例如壳体散热片、轴装风扇或甚至水套）时，由于热阻不够低，要满足最高温度要求是极其困难的。为此，一种新型的直接油冷却系统的设想环形轴向磁通永磁电机，在这里提出。为了证明其有效性，集总热等效电路模拟，有限元分析和实验测试。此外，预期的性能的机器使用建议的直接油冷却相比，使用国家的最先进的水冷却。
For high power density applications, such as electric or hybrid electric vehicles, heat extraction is a crucial aspect in electrical machine design due to stringent machine volume specifications. In these cases, it is extremely difficult if at all possible, to satisfy the maximum temperature requirement when using conventional cooling systems such as housing fins, shaft-mounted fans or even water jackets, due to insufficiently low thermal resistances. To this end, a novel direct oil cooling system conceived for Torus-type axial-flux permanent-magnet machines, is proposed here. In order to demonstrate its effectiveness, lumped thermal equivalent circuit simulations, finite element analyses and experimental tests are presented. Furthermore, the expected performances of the machine using the proposed direct oil cooling are compared to those obtained using state-of-the-art water cooling.