摘要
以一台15kW屏蔽电机为例,根据其结构特点建立了定子绕组散下线时新的温度场计算模型,给出了屏蔽夹层通水时的屏蔽套表面散热系数。在此基础上建立了电机槽部和端部模型,进而确定了温度场计算的二维和三维计算模型。通过把温度场数值计算的结果与实测数据相对比,验证了所建模型的合理性,为小型屏蔽电机的温度场计算提供帮助。通过对屏蔽电机二维和三维的温度场计算,研究了温度在轴向、周向分布规律,为该类电机的优化设计提供了参考。
According to the structural characteristic, the new calculation model of stator with mush coils for a 15 kW canned motor was established, and the heat transfer coefficient of stator can＇ s inner face with cooling water was deduced. Based on these, the 2D and 3D models for temperature field were established. The rationality of these models was proved by comparing the calculated results with the test data, and the model was helpful for the temperature field analysis of small machine. Through the calculations of 2D and 3D temperature fields, the distribution of temperature along the axial direction and circum were studied, which could be referred in the optimum design of this kind of motor.
出处
《电机与控制应用》
北大核心
2006年第4期7-12,共6页
Electric machines & control application
关键词
屏蔽电机
散热系数
温度场
canned motor
heat transfer coefficient
temperature field
