Fractional-Slot Concentrated-Winding Axial-Flux Permanent-Magnet Machine With Tooth-Wound Coils

被引：17
作者：
Capponi, Fabio Giulii [1 ]
De Donato, Giulio [1 ]
Rivellini, Giovanni Antonio [2 ]
Caricchi, Federico [1 ]
机构：
[1] Univ Roma La Sapienza, Dept Astronaut Elect & Energet Engn, I-00184 Rome, Italy
[2] Cima SpA, I-36051 Creazzo, Italy
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2014年 / 50卷 / 04期
关键词：
Axial flux; cogging torque; concentrated winding; eddy current; finite-element analysis (FEA); fractional slot; permanent magnet; rotor losses; tooth-wound coil; DESIGN;
D O I：
10.1109/TIA.2013.2295432
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents the design, finite-element (FE) analyses and experimental validation of a Kaman-type fractional-slot concentrated-winding axial-flux permanent-magnet machine with tooth-wound coils. In this particular topology, the flux travels axially through the permanent magnets, from one stator to the opposite, so that there is no need for any rotor back iron. Thus, the rotor is an assembly of permanent magnets and a suitably designed holder. In order to guarantee adequate mechanical stiffness, stainless steel has been selected as the holder's material. Different designs of this holder are investigated, with the aim of minimizing the induced losses therein. Both no-load and on-load performances are analyzed with 2-D time-stepped FE simulations, with particular attention devoted to rotor losses. A full-scale prototype is built, together with two of the previously investigated holder structures. Experimental tests confirm the validity of the design and of the FE simulations.
引用
收藏
页码：2446 / 2457
页数：12
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