摘要
对于轨道交通牵引电机来说,强迫风冷是一个有效降低电机温升的散热方式。为了使电机的散热效果达到最佳,现对某轨道交通牵引电机风道结构进行了建模与仿真。同时采用响应面法,以风道内定子铁心散热筋厚度、数量、高度作为研究对象,定子温升与风道压降作为响应值,对风道内部铁心散热筋结构进行优化设计。结果表明:对定子铁心温升和通道压降的影响从大到小排序为:铁心散热筋数量、高度和厚度。经响应面优化,结构参数组合为:铁心散热筋厚度为0.5mm、数量为7、高度为9.2mm。同时对优化参数进行了数值模拟验证,定子温升与风道压降的响应面预测值与数值计算值仅仅相差1.57%和0.82%,从而验证了响应面模型的有效性。
For the traction motor of rail transit,forced air cooling is an effective way to reduce the temperature rise of the motor.In order to achieve the best heat dissipation effect,the duct structure of a traction motor of rail transit is modeled and simulated.At the same time,taking the the thickness,quantity and height of stator core radiation rib inside the duct as the research objects and taking the stator temperature rise and duct pressure drop as the response values,the structure of the iron core radiation rib inside the duct is optimally designed by the response surface method.The results show that the impact on the stator temperature rise and channel pressure drop is sorted from largest to smallest as:quantity,height and thickness of iron core radiation rib.The structural parameter optimized by response surface method is as follows:thickness of the rib is 0.5mm,number of the rib is 7,and height of the rib is 9.2mm.At the same time,the optimization parameter is numerically simulated.The differences between the response surface prediction value and calculation value of the stator temperature rise and duct pressure drop are only 1.57%and 0.82%,which verifies the validity of response surface model.
作者
朱泽志
李奎
杨柳
彭俊
罗英露
Zhu Zezhi;Li Kui;Yang Liu;Peng Jun;Luo Yinglu(CRRC Zhuzhou Institute of Electrical Technology&Material Engineering,Zhuzhou 412001,China;Xiangyang CRRC Electric Machinery Technology Co.,Ltd.,Xiangyang 441000,China)
出处
《防爆电机》
2024年第1期8-14,共7页
Explosion-proof Electric Machine
基金
湖南省重点领域研发计划项目(Nos.2022GK2062)。
关键词
牵引电机
强迫风冷
散热筋
结构优化
响应面法
Traction motor
forced ventilation
radiation rib
structural optimization
response surface method
