混合转子永磁电机双风道冷却系统设计  

Design of Dual Air Duct Cooling System for Hybrid Rotor Permanent Magnet Motor

作　　者：陈前[1] 周亚南 徐高红[1] 史浩 刘正蒙 刘国海[1] CHEN Qian;ZHOU Yanan;XU Gaohong;SHI Hao;LIU Zhengmeng;LIU Guohai(School of Electrical and Information Engineering,Jiangsu University,Zhenjiang 212013)

机构地区：[1]江苏大学电气信息工程学院,镇江212013

出　　处：《电气工程学报》2024年第2期1-8,共8页Journal of Electrical Engineering

基　　金：芜湖市重大科技成果工程化资助项目(2022zc07)。

摘　　要：混合转子永磁电机具有高功率密度的优势,但也导致电机散热空间和散热能力不足等问题。为此,根据其特有的转子结构提出一种双风道冷却系统,并采用计算流体力学(Computational fluid dynamics,CFD)的方法对电机温度场进行验证。首先,根据电机损耗和尺寸设计一个适合双风道的轴流风扇。其次,对不同进、出风口的结构参数进行仿真,对比和分析仿真结果,选出冷却性能较好的参数组合。最后对单风道和该参数组合下的双风道进行数值模拟,仿真结果表明,使用双风道冷却结构后电机散热能力显著提升。Hybrid rotor permanent magnet motors(PM motors)are characterized by high power density,but it also leads to the problem of insufficient cooling space and cooling capacity.For this purpose,a dual-duct cooling system is proposed based on its unique rotor structure,and the temperature field of the motor is simulated using the computational fluid dynamics(CFD)method.Firstly,an axial fan,tailored to the dual-airway configuration,is designed in accordance with motor loss and size considerations.Subsequently,various structural parameters for different air inlets and outlets are subjected to simulation,and the simulation results are compared and analyzed.The optimal combination of parameters,offering superior cooling performance,is identified.Finally,simulations are then conducted for both the single duct and the dual duct,employing this selected parameter combination.The simulation results unequivocally demonstrate a significant enhancement in the motor’s cooling capacity through the utilization of the dual duct cooling structure.

关 键 词：混合转子永磁电机 计算流体力学 轴流风扇 双风道冷却系统 

分 类 号：TM341[电气工程—电机]