南京航空航天大学学报2018，Vol.50Issue(3)：329-335,7.DOI:10.16356/j.1005-2615.2018.03.006
分数槽集中绕组永磁同步电机设计与分析
Analysis and Design of PMSM with Fractional-Slot Concentrated Windings
摘要
Abstract
Permanent magnet synchronous machine (PMSM ) with fraction-slot concentrated-winding (FSCW) is popularly applied in the field of aerospace and electric vehicle for its good flux-weakening ca-pability ,low cogging torque ,and high torque density and efficiency .This paper mainly focuses on the PMSM-FSCW used for airborne radar servo system .With the magnetic circuit characteristics of PMSM-FSCW ,the analytic model of the motor is established .Influences of some design parameters ,such as number of poles ,ratio of length to diameter ,split ratio and magnetic flux density coefficient on the mo-tor performance are studied .Analytical results show that output torque and weight of the motor are re-spectively proportional to the outer diameters of stator ,D3osand D2os,and the percentage of coil end to whole windings is inversely proportional to the ratio of stator length to its outer diameter λ.In view of torque density and percentage of coil end mentioned above ,the value of λis recommended from 0 .2 to 0 .4 .When split ratio γ,i.e.the ratio of stator inner diameter Disto outer diameter Dos,raises ,output torque firstly increases and then decreases .Hence the γis advised to select in the range of 0 .6—0 .8 for the maximum torque density .When the ratio of the largest flux density in the stator iron core to air-gap flux density χenlarges ,output torque firstly increases and then decreases .χshould be designed at about the value of 1 .75 for the maximum output torque .Based on the theoretical analysis and simulation re-sults above ,a prototype of PMSM-FSCM ,with the combination of 45-slot/38-pole ,is designed and man-ufactured ,and its performance is experimentally tested .关键词
分数槽集中绕组/永磁同步电机/长径比/裂比/磁密系数Key words
fractional-slot concentrated windings (FSCW )/permanent magnet synchronous machine (PMSM )/length diameter ratio/split ratio/flux density ratio分类
信息技术与安全科学引用本文复制引用
姜仁华,刘闯,宁银行,王承宇..分数槽集中绕组永磁同步电机设计与分析[J].南京航空航天大学学报,2018,50(3):329-335,7.基金项目
国家自然科学基金(50977044,51377076)资助项目 （50977044,51377076）
江苏省产学研基金(BY2014003-09)资助项目 （BY2014003-09）
江苏省"六大人才高峰"(YPC13013)资助项目. （YPC13013）
