摘要
盘式无铁心电机通常体积比较小,功率密度高。定子绕组采用印制电路板结构(printed circuit board,PCB)的盘式无铁心永磁同步电机,其温升直接影响着PCB基材和永磁体的性能。文中以基于PCB绕组的盘式无铁心永磁同步电机为研究对象,根据传热学原理,建立电机三维温度场计算的数学模型。采用有限元法对电机进行了温度场仿真分析,研究电机的发热以及电机各部件的温度情况。通过与实验数据对比,验证了所建模型的合理性和计算结果的准确性。最后通过增大电机机壳与PCB定子的接触面积研究电机温度的变化,优化了电机温升,为基于PCB绕组的盘式电机冷却方式的研究提供了一些参考依据。
An axial flux coreless machine actually has little volume and high power density. For an axial flux permanent magnet synchronous machine（PMSM） with a printed circuit board（PCB） stator winding, the temperature has great influence on the performance of the permanent magnet and FR-4, which is the material of PCB. An axial flux PMSM with PCB winding was studied. According to the heat transfer theory, a three-dimension temperature field model was established. The finite element method（FEM） was used for the analysis and calculation of the temperature field. Heating and temperature of each component was studied. A prototype machine was manufactured and experiments were conducted to test the thermal performance. The impact of increasing the contact area between the frame and the PCB stator on the temperature field was analyzed and the temperature rise was optimized, which could provide some reference for the research on the cooling approach.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2016年第11期3062-3069,共8页
Proceedings of the CSEE
关键词
盘式电机
印制电路板结构(PCB)绕组
损耗
有限元法
温度场
axial flux machine
printed circuit board（PCB） winding
losses
finite element method
temperature field
