磁通屏障对潜油电机转矩特性的影响  

Influence of magnetic flux barrier on the torque characteristics of oil submersible motor

作　　者：吴尧辉 刘书材 岳曦元 Wu Yaohui;Liu Shucai;Yue Xiyuan(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)

机构地区：[1]河南理工大学电气工程及其自动化学院,焦作454000 [2]直驱电机-河南省工程技术研究中心,焦作454000

出　　处：《电子测量技术》2023年第9期8-15,共8页Electronic Measurement Technology

基　　金：国家自然科学基金(61340015);河南省教育厅自然科学基金(2009B70003);河南省教育厅自然科学基金(2010A470003)项目资助。

摘　　要：转矩脉动是影响内置式潜油电机的重要因素,通过对电机转子内部磁通屏障的设计,进而达到降低转矩脉动的目的。以10极12槽内置式“一”字型潜油电机为基础模型,使用有限元法对潜油电机转子进行了二维瞬态场分析。基于磁通屏障效应对潜油电机气隙径向磁密的影响,得出了潜油电机转子在各种运转工况条件下的径向电磁特性分布的状况,并分别比较研究电机的齿槽转矩和电磁转矩等转矩特性。优化后,潜油电机的转矩脉动有了显著的降低。最后,采用砝码法验证磁通屏障的设计对潜油电机齿槽转矩具有较好的抑制效果。由于潜油电机的定子结构被限制,磁通屏障的优化设计具有非常大的意义。Torque ripple is an important factor affecting the torque characteristics of IPM oil submersible motor.The purpose of reducing torque ripple is achieved through the design of the magnetic flux barrier of the motor rotor.Taking the 10 pole 12 slot IPM"-"magnet type oil submersible motor as the basic model.The two-dimensional transient field of oil submersible motor rotor is analyzed by finite element method.Based on the influence of flux barrier effect on the radial flux density of air gap,the distribution of radial electromagnetic characteristics of oil submersible motor rotor under various operating conditions is obtained,and the torque characteristics such as cogging torque and electromagnetic torque are compared and studied respectively.After optimization,the torque ripple of oil submersible motor is significantly reduced.Finally,the results verify that the design of magnetic flux barrier has a good inhibitory effect on the cogging torque of oil submersible motor.Because the stator structure of submersible motor is limited,the optimal design of flux barrier is great significance.

关 键 词：潜油电机 转矩特性 磁通屏障 有限元分析 转矩脉动 齿槽转矩 

分 类 号：TM351[电气工程—电机]