Results 21 to 30 of about 217 (78)
Here, static and dynamic (rotating) misalignments between the low‐speed rotor (LSR) and the stator of axial flux magnetically geared machines are studied with the aid of 3‐D finite element analysis (FEA). The influence of rotor/stator axis misalignments on machine performance in terms of cogging torque, air‐gap flux density, and back‐EMF is ...
Mohammed F. Hamad Khatab +3 more
wiley +1 more source
A comparison between different analytical and finite‐element (FE) tools for the computation of cogging torque and torque ripple in axial flux permanent‐magnet synchronous machines is made. 2D and 3D FE models are the most accurate for the computation of cogging torque and torque ripple.
Ahmed Hemeida +4 more
wiley +1 more source
In this paper, a 3D open‐circuit magnetic equivalent circuit model is proposed for rapid performance analysis of the SSDRS‐AFWF machine. This model utilises different discretisation levels for the machine components according to the local magnetic saturation condition, and the double‐cross structure is introduced in the air gap to improve the modelling
Ziyu Cang +3 more
wiley +1 more source
This paper presents the design and optimisation of a high‐efficiency axial flux YASA permanent magnet generator for direct‐drive wind applications. A quasi‐3D modelling approach combined with FEM analysis is used to explore segmented Halbach array configurations, enabling accurate performance prediction with reduced computational cost.
Giovanni Landi +2 more
wiley +1 more source
This paper presents a multi‐level optimisation approach to enhance the fault‐tolerant capability of a Yoke‐less Axial‐Field Flux‐Switching Permanent Magnet (YASA‐AFFSPM) motor for safety‐critical applications. The design is optimised at three levels to achieve multiple objectives, focusing on average torque, cogging torque, and fault‐tolerant ...
Javad Rahmani‐Fard +1 more
wiley +1 more source
Comparison and Analysis of Stator Plate Holder on Yokeless and Segmented Armature Machine
This paper deals with comparison and analysis of stator plate holder on Yokeless and segmented armature (YASA) machine. YASA topology consists of two rotors and one inner stator comprised of many independent segments.
A. F. Desanti +3 more
semanticscholar +1 more source
Analytical Prediction of Optimal Split Ratio for Maximum Torque Per Copper Loss in AFPM Machines
Different from the existing analytically predicted optimal split ratio λopt for the maximum torque, that is, λopt ≈ 0.58, it is found that the optimal split ratio λopt for the maximum torque per copper loss depends on the stator slot number Q, that is, λopt increases with a larger Q, whilst the rotor pole number 2p has little influence on λopt ...
Lingyun Shao +5 more
wiley +1 more source
A novel six‐phase rotor‐permanent magnet axial field modular fault‐tolerant flux‐switching machine (RPM‐AFMFTFSM) is proposed. The advantage of the proposed machine with respect to the overload capability, flux‐weakening capacity, antidemagnetisation ability and fault‐tolerant operating performance are revealed.
Yixiang Tu +3 more
wiley +1 more source
Multi-Step Method for Axial-Flux Permanent-Magnet Motor to Reduce Performance Analysis Time
This paper proposes a novel multi-step analysis (MSA) method to reduce the analysis time and improve the accuracy of finite element analysis (FEA) for axial-flux permanent-magnet motors (AFPMM).
Ji-Sung Lee +4 more
doaj +1 more source
This thesis develops design methodologies for megawatt(MW)-scale yokeless and segmented armature (YASA) generators for wind turbine applications. The methodologies include the electromagnetic, the structural and the thermal designs of a YASA generator.
openaire +1 more source

