Comparative Analysis of Dual-Rotor Modular Stator Axial-Flux Permanent Magnet Machines With Different Rotor Topologies

被引：11
作者：
Jia, Lun [1 ]
Lin, Keman [2 ]
Lin, Mingyao [1 ]
Le, Wei [1 ]
Wang, Shai [1 ]
机构：
[1] Southeast Univ, Sch Elect Engn, Nanjing 210096, Peoples R China
[2] Hohai Univ, Sch Energy & Elect Engn, Nanjing 210098, Peoples R China
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2021年 / 31卷 / 08期
基金：
美国国家科学基金会;
关键词：
Axial-flux machine; PM machine; threedimensional finite-element method; fractional slot non-overlapping winding; electromagnetic performances; PERFORMANCE;
D O I：
10.1109/TASC.2021.3091124
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, the influence of rotor topology on the electromagnetic performances of dual-rotor axial-flux permanent magnet (DRAFPM) machines with modular stator (MS) and fractional slot non-overlapping winding(FSNW) is investigated by comparing four different rotor structures, including surface-mounted PM (SPM), consequent-pole PM (CPM), Halbach CPM (HCPM) and interior PM rotor (IPM) structures. In order to reduce the PM flux leakage in CPM rotor, the air-barrier introduced beside the PM is optimized by the three-dimensional finite-element method. Then, the main electromagnetic characteristics of the investigated machines, such as open-circuit airgap flux density, back-EMF, average torque, torque ripple, PM eddy-current loss and PM demagnetization are compared quantitatively. Consequently, the machinewith SPMrotor accommodates the highest back-EMF and output torque; meanwhile, the CPM machine possesses the highest torque per PM volume and inductance of d-axis. Moreover, both CPM and IPM machine generate reluctance torque, and the IPM machine features larger salient pole ratio and stronger resistance to irreversible demagnetization, as well as the highest machine efficiency.
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页数：5
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