摘要
基于有限元法与集总热网络法建立电机温升模型,仿真计算电机瞬态温升。针对电机温升模型参数繁多且计算复杂的问题,从损耗分布和热量传递的角度,系统研究了电机的电磁参数和热参数。根据电机的结构参数建立物理模型,通过电磁仿真结合解析计算修正漏感参数,计算配置端部及外壳换热系数,等效处理定转子气隙对流系数,采用磁热耦合法计算温升。通过试验与仿真对比电机主要部位温升,验证了电机参数计算的准确性。
Based on the finite element method and the lumped heat network method,the temperature rise model of the motor is established,and the transient temperature rise of the motor is simulated.In view of the variety and complexity of the model parameters of motor temperature rise,the electromagnetic parameters and thermal parameters of motor are systematically studied from the perspective of loss distribution and heat transfer.According to the structural parameters of the motor,the physical model is established.The leakage inductance parameters are modified by electromagnetic simulation and analytical calculation.The heat transfer coefficients of the end and the shell are calculated.The air gap convection coefficients of the stator and rotor are treated equivalently.The temperature rise is calculated by the magneto-thermal coupling method.By comparing the temperature rise of the main parts of the motor through experiment and simulation,the accuracy of motor parameters calculation is verified.
作者
吴尧辉
方鑫
付豪
WU Yaohui;FANG Xin;FU Hao(School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454000,China;Direct Drive Elevator-Engineering Technology Research Center of Henan Province,Jiaozuo 454000,China)
出处
《电机与控制应用》
2020年第6期22-26,共5页
Electric machines & control application
基金
国家自然科学基金项目(61340015)
教育部协同育人项目(201701056027,201702064052)
教育部创新创业联合基金项目(201802060039)
河南省教育厅自然科学研究计划项目(2010A470003,2009B470003)。
关键词
电机
温度场
磁热耦合
电磁参数
热参数
motors
temperature field
magneto-thermal coupling
electromagnetic parameter
thermal parameter
