摘要
针对高速永磁电机损耗密度高,散热困难,易引起永磁体过热而造成不可逆退磁问题,基于流体动力学及流固耦合理论,提出丁胞水冷结构的散热方案,并对多种水冷方案在相同的条件下进行流体场比较分析,得出相应的温度云图、速度云图和湍动能云图。分析得出,丁胞结构产生水道涡流,破坏了水道的平稳流动,提高了散热能力。最后,对散热效果较好的上壁面球凸水道结构进行参数化分析,并对优化后的方案进行电机温度场分析。丁胞水冷结构为解决高速永磁电机这类高功率密度电机的散热问题提供一种新的思路。
For the problem that the high speed permanent magnet machine has high-loss density, and heat dissipation difficulty, it is easy to cause overheat and cause irreversible permanent magnet demagnetization. In this paper, based on the theory of hydrodynamics and fluid-solid coupling, the heat dissipation scheme of the dimpled water-cooled structure is proposed. The water temperature was analyzed under the same conditions, and the corresponding temperature cloud and turbulent energy cloud. Analysis shows that the structure of the small cell water vortex, destruction of the smooth flow of waterways, improve the cooling capacity. Finally, the parameter analysis of the upper squash spherical convex waterway structure with better heat dissipation was carried out, and the temperature range of the machine was analyzed. The dimpled water cooling structure is a new way to solve the heat dissipation problem of high power permanent magnet machine.
作者
陈进华
刘威
张驰
崔志琴
舒鑫东
CHEN Jin-hua;LIU Wei;ZHANG Chi;CUI Zhi-qin;SHU Xin-dong(Laboratory of Robotics and Intelligent Manufacturing Equipment Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences,Ningbo 315201,China;School of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051,China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2019年第9期35-42,50,共9页
Electric Machines and Control
基金
国家自然科学基金(51807194)
浙江省基础公益研究计划(LGG18E070007)
宁波市创新团队(2016B10016)
关键词
高速电机
丁胞
温度场
流体动力学
high-speed magnet machine
dimpled
temperature field
hydrodynamics
