Axial flux permanent magnet synchronous machines (AFPMSMs) with printed circuit board (PCB) windings take on different electromagnetic and thermal performance characteristics when compared to the traditional radial flux permanent magnet synchronous machines (RFPMSMs). This paper presents the electromagnetic and thermal analysis of an AFPMSM. Taking a prototype AFPMSM with PCB winding as an example, the finite element method (FEM) and the electromagnetic thermal coupling method are used to conduct an analysis on this machine. The analysis results show that AFPMSMs can work under higher winding current density, and the main reasons of which are discussed in detail. Furthermore, its electromagnetic and thermal characteristics at rated state, different current densities and speeds are studied, respectively. Finally, the validity of the simulation model is verified by prototype experiment, which provides a reference for the thermal research of AFPMSM with PCB winding.

中文翻译：

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带有印刷电路板绕组的轴向磁通永磁同步电机的电磁和热耦合分析

与传统的径向磁通永磁同步电机（RFPMSM）相比，带有印刷电路板（PCB）绕组的轴向磁通永磁同步电机（AFPMSM）具有不同的电磁和热性能特征。本文介绍了AFPMSM的电磁和热分析。以一个以PCB绕组为原型的AFPMSM样机为例，对该机器进行了有限元法（FEM）和电磁热耦合法进行分析。分析结果表明，AFPMSM可以在较高的绕组电流密度下工作，并且详细讨论了其主要原因。此外，分别研究了其在额定状态下的电磁特性和热特性，不同的电流密度和速度。最后，