防爆型高功率密度电机温度场与流体场综合计算  

Integrated Calculation on Temperature Field and Fluid Field in Explosion-Proof Motor With High Power Density

作　　者：许明宇[1] 温嘉斌[1] 吴桂珍[1] 

机构地区：[1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150040

出　　处：《防爆电机》2008年第3期30-34,共5页Explosion-proof Electric Machine

基　　金：黑龙江省自然科学基金(E200626)资助

摘　　要：根据对防爆型高功率密度电机额定运行状态的分析,建立其传热数学物理模型。通过电机气隙流体场计算给出了气隙换热面的表面散热系数,借此用有限元法对电机温度场进行了模拟;模拟结果与实验结果对比,两者能够很好地吻合,说明该传热模型可以真实有效地反映实际传热过程。根据计算结果分析电机的温度场分布规律,找出额定工作时温升最大的位置作为监控点,其结果可以为电机热控制的优化提供理论依据。According to the analysis of the rating operating state of an explosion-proof motor with high power density,the mathematical and physical model for translating heat of the motor is established.Through a calculation of a fluid field in the air gap of the motor,the surface heat transfer coefficients is given and the temperature field of motor is simulated by finite element method.By comparing the temperature of the experimental data with the simulation results,the model is verified that it can really represent the practical heat transfer process.The distribution law of temperature field is analyzed according to the calculating result and the position of maximum temperature rise of motor at rating operation is taken as the monitoring point.The result of it can provide theoretical foundation for the optimization of thermal control of motor.

关 键 词：防爆型高功率密度电机 有限元 热特性分析 温度场 

分 类 号：TM357[电气工程—电机] TM301.41