电机与控制应用2026，Vol.53Issue(6)：612-622,11.DOI:10.12177/emca.2026.176
低极槽数定子FSCW双转子同步电机电磁力波机理研究与特性分析
Mechanism Investigation and Characteristic Analysis of Electromagnetic Force Waves in Dual-Rotor Synchronous Motors with FSCW and Low Pole-Slot Numbers
摘要
Abstract
[Objective]This study aims to address the issue of electromagnetic vibration and noise caused by complex air-gap electromagnetic force waves in dual-rotor synchronous motor(DRSM)with fractional-slot concentrated windings and low pole-slot numbers.[Methods]The 6-slot stator and 2/4-pole DRSM were selected as the research object to analyze the characteristics and modulation mechanism of electromagnetic force waves under no-load and load conditions.The magnetomotive force and air-gap flux density analytical expressions were derived based on the magnetic potential-permeance method,while the force wave characteristics were theoretically analyzed using Maxwell's stress tensor method.The finite element model was validated through no-load back-electromotive force experiments,and the time-space spectrum of force waves as well as armature reaction effects were investigated through simulations.For the yoke-less stator design,a tooth shoe structure was developed,and its vibration and noise suppression effectiveness was evaluated via multiphysics field simulations.[Results]The spatial orders of the electromagnetic force waves were found to be multiples of the greatest common divisor of the pole number and slot number,while the temporal frequencies were even multiples of the fundamental frequency.The load current was observed to only alter the amplitude of the force waves without changing their order characteristics.The tooth shoe structure was demonstrated to reduce the amplitude of the first-order magnetic permeability-modulated force waves by 31.01%,with significant attenuation observed in the 4th-order vibration acceleration and high-frequency noise.[Conclusion]The tooth shoe structure effectively suppresses specific-order electromagnetic force waves by modulating the magnetic permeability distribution,providing both theoretical foundations and engineering solutions for vibration and noise reduction in DRSM.关键词
分数槽集中绕组/双转子同步电机/电磁力波/力波时空特性Key words
fractional slot concentrated winding/dual-rotor synchronous motor/electromagnetic force wave/spatial-temporal characteristics of force wave分类
信息技术与安全科学引用本文复制引用
骆皓,王明超,胡皓宇,倪喜军,丁嘉睿..低极槽数定子FSCW双转子同步电机电磁力波机理研究与特性分析[J].电机与控制应用,2026,53(6):612-622,11.基金项目
中国博士后科学基金面上项目(2017M621086) （2017M621086）
江苏省配电网智能技术与装备协同创新中心开放基金项目(XTCX202405)General Program of China Postdoctoral Science Foundation(2017M621086) （XTCX202405）
Jiangsu Collaborative Innovation Center for Smart Distribution Network(XTCX202405) （XTCX202405）
