电机与控制应用2026，Vol.53Issue(8)：795-806,12.DOI:10.12177/emca.2026.195
宽高效率区和宽高功率因数区重合的径向集中线圈式双转子内嵌永磁同步电机设计
Design of a Radial Concentrated Winding Dual-Rotor Interior Permanent Magnet Synchronous Motor With Coincident Wide Regions of High-Efficiency and High-Power-Factor
摘要
Abstract
[Objective]Although integer-slot flat-wire motors offer high power density and efficiency,they suffer from significant drawbacks,including high copper usage,substantial copper loss,and severe heat generation in the winding end regions.Therefore,this paper proposes a dual-rotor motor structure designed to reduce copper loss and enhance overall motor efficiency.[Methods]Radial concentrated winding technology was adopted for both the inner and outer stator windings,significantly reducing copper usage and associated losses at the motor ends.Meanwhile,by increasing the amount of permanent magnet material and optimizing the overall motor performance with the finite element method,the power factor and maximum output power were effectively enhanced,while the increase in iron loss was kept to a minimum.[Results]The research findings were as follows:with the flat-wire radial concentrated winding technology,the end impedance parameters(resistance/reactance),copper loss,and magnetic flux leakage were all reduced by 50％synchronously.Furthermore,under the constant-volume constraint,electromechanical co-optimization was achieved,whereby the power factor was enhanced and the maximum output power was increased.The cooling system was designed to elevate the peak efficiency,enabling the coincidence of the high-efficiency and high-power-factor regions across all operating conditions,including overload.[Conclusion]The strong consistency between simulation and theoretical calculations confirms the significant advantages of the dual-rotor motor in terms of high efficiency and high power factor,establishing a new paradigm for the design of high-density motors.关键词
铜耗/绕组端部/双转子电机/径向集中嵌线技术/功率因数Key words
copper loss/winding end region/dual-rotor motor/radial concentrated winding technology/power factor分类
信息技术与安全科学引用本文复制引用
贾保旭,刘光军,王晓光,王选瑞..宽高效率区和宽高功率因数区重合的径向集中线圈式双转子内嵌永磁同步电机设计[J].电机与控制应用,2026,53(8):795-806,12.基金项目
国家自然科学基金(51677058,52207233)National Natural Science Foundation of China(51677058,52207233) （51677058,52207233）
