考虑振动噪声抑制的Halbach内置式永磁同步电机拓扑协同优化设计  

Topology Cooperative Optimization Design of Halbach Interior Permanent Magnet Synchronous Motor Considering Vibration and Noise Suppression

作　　者：高建宁 徐炜 王激尧 房淑华[1] 刘细平 Gao Jianning;Xu Wei;Wang Jiyao;Fang Shuhua;Liu Xiping(School of Electrical Engineering Southeast University, Nanjing 210096 China;School of Electrical Engineering and Automation Jiangxi University of Science andTechnology, Ganzhou 341000 China)

机构地区：[1]东南大学电气工程学院,南京210096 [2]江西理工大学电气工程与自动化学院,赣州341000

出　　处：《电工技术学报》2024年第S1期37-50,共14页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金资助项目(52275009,52207038)。

摘　　要：针对内置式永磁同步电机电磁振动噪声大的问题,该文提出一种定转子开设辅助槽,转子采用钕铁硼和铁氧体混合永磁体,同时部分永磁体分段Halbach充磁方式的电机拓扑结构。首先,求解电机振动噪声解析表达式,并搭建电机有限元模型。其次,提出一种结合参数敏感度分析和响应面法的电机拓扑协同优化方法,考虑到拓扑参数间的耦合作用影响,根据所提方法对拓扑结构参数进行优化。然后,将优化后电机通过电磁场、机械场、声场进行多物理场耦合仿真,得到电机振动噪声特性,并将定子最大振动幅值和噪声声压级结果与V型内置式永磁电机相比较,结果表明:在保证电磁转矩不受影响的前提下,该结构抑制了转矩脉动、齿槽转矩以及径向电磁力的幅度,减小了电机振动幅值和噪声声压级。最后,在机械场中计算转子所受等效应力和总变形,验证电机结构的合理性。Addressing the problem of severe electromagnetic oscillations and disturbances in the synchronous motor of an internal permanent magnet,a kind of motor topology with auxiliary slots in fixed rotor is proposed.Composed of NdFeB and a ferrite mixed permanent magnet,the rotor functions in the Halbach magnetization setting of the permanent magnet section.Firstly,the resolution of the analytical depiction of motor vibration noise resulted in the development of a finite element motor model.Secondly,the suggestion is made for a joint optimization approach in motor topology,integrating parameter sensitivity analysis with the response surface technique.Taking into account the interplay among topological parameters,the optimization of topological structure parameters is conducted as per the suggested approach.Subsequently,the refined motor undergoes a multi-physical field coupling simulation,employing electromagnetic,mechanical,and acoustic fields to capture its vibration and noise characteristics.Comparisons are made between the outcomes of the stator's peak vibration amplitude and the level of noise sound pressure and those from the V-type internal permanent magnet motor.The results suggest that the proposed model can diminish the torque ripple,slot torque,and the intensity of the radial electromagnetic force,based on its ability to ensure the electromagnetic torque,thereby diminishing the motor's vibration intensity and noise pressure intensity.To confirm the motor structure's logic,the rotor's equivalent stress and total deformation in the mechanical field are computed.Firstly,motor rotor topology parameters are intricate,and conventional single structure optimization frequently culminates in an optimization goal,challenging to assess the efficacy of several motors.The optimization of single topological structure parameters will change the specific motor performance objectives,and the coupling optimization of multiple structure parameters will have nonlinear effects on the motor performance owing to alterations in the

关 键 词：内置式永磁同步电机 Halbach永磁体 径向电磁力 振动噪声 

分 类 号：TM301.4[电气工程—电机]