高速永磁电机的磁-热双向耦合冷却系统设计优化  

Design and Optimization of Magnetic-thermal Bidirectional Coupling Cooling System for HSPMSM

作　　者：柳浩浩 赵金星[1] 孙宇行 LIU Haohao;ZHAO Jinxing;SUN Yuxing(School of Mechanical Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学机械工程学院,上海200093

出　　处：《机械科学与技术》2025年第3期521-529,共9页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(51506130)。

摘　　要：为了提升燃料电池空压机用高速永磁同步电机的功率密度和安全性,提升散热性能,设计了复合冷却系统,基于有限元和CFD软件建立了电磁-热双向耦合平台,在此基础上优化了高速永磁电机冷却系统,保证其在适宜温度工作并同时提升电机性能。优化后的高速永磁电机最终电流幅值为25 A,提升66.7%;电机最大功率为17 kW,提升70%;转矩最大达到1.48 Nm,提升66.3%;绕组最高温度约为381.8 K,降低52.4%;永磁体最高温度约为404.9 K,降低32.3%。In order to improve the power density,safety and heat dissipation performance of high-speed permanent magnet synchronous motor for fuel cell air compressor,a composite cooling system was designed,and an electromagnetic-thermal bidirectional coupling platform was established based on finite element method and CFD software.On this basis,the cooling system of high-speed permanent magnet motor was optimized to ensure that it worked at a suitable temperature and improve the motor performance.The final current amplitude of the optimized high-speed permanent magnet motor is 25 A,which is increased by 66.7%.The maximum power of the motor is 17 kW,which is increased by 70%.The maximum torque is 1.48 Nm,which is increased by 66.3%.The maximum winding temperature is about 381.8 K,which is reduced by 52.4%.The maximum temperature of permanent magnet is about 404.9 K,which is reduced by 32.3%.

关 键 词：磁-热双向耦合 高速永磁电机 复合冷却 电机性能 设计优化 

分 类 号：TM351[电气工程—电机]