绕组节距不对称对永磁同步电机性能的影响与仿真分析  

Simulation and analysis of the influence of asymmetric winding pitch on theperformance of permanent magnet synchronous motor

作　　者：刘显兰 刘有恩 杨林 刘勇 LIU Xianlan;LIU Youen;YANG Lin;LIU Yong

机构地区：[1]贵州航天林泉电机有限公司,贵州贵阳550081

出　　处：《现代机械》2023年第5期19-24,共6页Modern Machinery

摘　　要：永磁同步电机效率高、可控性好,通常被用作在伺服系统中作为动力元件,随着永磁同步电机在航空航天领域的推广应用,对功率密度和性能的要求越来越高,永磁同步电机的绕组设计和嵌放方式已与传统结构有较大变化,手工绕制仍是这类电机绕组的主要安放方式。当电机的绕组匝数、槽数较多,跨距为非整距时,手工绕制过程中容易引起节距不对称。本文通过理论分析,建立永磁同步电机交流绕组向量模型和有限元分析模型,分析了绕组跨距不对称时,对电机电感、电阻,空载反电势、转矩和转矩脉动的影响。The permanent magnet synchronous motor(PMSM)has high efficiency and good controllability,and is usually used as the power component in the servo system.With the wide application of PMSM in the aerospace field,the requirement of its power density and performance is higher and higher.Manual winding is still the main installation method of this kind of motor windings.When there are many turns and slots,and the span is non-full-pitch,it is easy to cause asymmetric pitch in the process of manual winding.In this paper,the vector model and finite element model of PMSM AC windings are established by theoretical analysis,and the influence of asymmetric pitch on the inductance,resistance,no-load potential,torque and torque ripple of the motor is analyzed.

关 键 词：永磁同步电机 非整距绕组 节距不对称 仿真分析 

分 类 号：TM405[电气工程—电器]