摘要
根据高速永磁电机通风系统内流体流动和传热的特点,建立了定子轴向通风系统三维流体场数学模型,并给出求解区域相应的边界条件及假设条件。根据流体力学理论,基于CFD流体计算软件Fluent对高速永磁电机的定子温升进行了计算和分析,将其结果以及基于等效热路法计算的结果与实测值进行比较,证实了高速永磁电机定子内流体场与温度场存在较强的耦合关系。
Considering the characteristics of fluid-flow and heat-transfer high-speed permanent magnet machine, the 3D fluid model and heat conduction equation with axial ventilation duct are established. Meanwhile, the solution region and the corresponding boundary conditions under some assumptions are given. According to the theory of fluid mechanics, the temperature rise of stator for a high speed PM machine is calculated and analyzed by CFD software Fluent. The stator temperature field is computed and the result is compared respectively with the result calculated by equivalent heat circuit method and tested value. The validity of the proposed method is conftrmed.
出处
《大电机技术》
北大核心
2012年第6期5-8,共4页
Large Electric Machine and Hydraulic Turbine
基金
国家自然科学基金项目支持(50437010)
关键词
高速永磁电机
等效热路法
流体场
温度场
high speed PM machine
equivalent heat circuit
fluid field
temperature field
