摘要
为探究提高小型异步电动机运行效率及功率因数的综合设计方法,对现有1.1kW工业用小型高效异步电动机定、转子结构及制造材料特性进行了分析。针对电动机损耗特点,在电动机结构方面,分别选取气隙长度、定转子槽型和绕组形式等参数来设计电磁优化方案;在电动机材料方面,采用铸铜笼型转子和新型硅钢片实现电动机运行效率的进一步提升。利用有限元法设计分析,分别从电动机结构和材料上得到了单独优化方案,并在综合考虑电磁、结构、材料和成本等因素后确定了电动机的最终优化设计方案。最后试验测试证实该方案可将原电动机负载运行效率提高0.51%,功率因数提高0.008 2。
In order to explore a comprehensive design method to improve the running efficiency and power factor of a small asynchronous motor,the structures of the stator and the rotor and the characteristics of manufacturing materials of the existing 1.1 kW small and efficient asynchronous motor used in industry are analyzed.According to the characteristics of motor loss,the parameters such as the air gap length,the stator and rotor slot types,and the winding form are selected to design the electromagnetic optimization scheme.On the materials of the motor,the efficiency of the motor is further improved by a cast copper cage rotor and a new silicon steel sheet.By the finite element method(FEM)design and analysis,a separate optimization scheme is obtained from the structures and materials of the motor,and the final optimum design scheme of the motor is determined after the electromagnetism,structure,material and cost factors are considered.Finally,the test results show that this scheme can increase the load efficiency of the original motor by 0.51 percent and the power factor by 0.008 2.
作者
邹雁芝
李全峰
黄厚佳
范辉
ZOU Yanzhi;LI Quanfeng;HUANG Houjia;FAN Hui(School of Electrical Engineering,Shanghai Dianji University,Shanghai 201306,China)
出处
《上海电机学院学报》
2018年第6期41-47,共7页
Journal of Shanghai Dianji University
基金
上海市闵行区校企合作项目(2013MH180)
关键词
超高效异步电动机
降耗措施
优化设计
有限元仿真
premium asynchronous motor
loss reducing measure
optimal design
finite element simulation
