Design and Implementation of an Optimized Printed Circuit Board Axial-Flux Permanent Magnet Machine

Tokgoz, Furkan; Cakal, Gokhan; Keysan, Ozan

doi:10.1109/icem49940.2020.9271058

Cited by 11 publications

(4 citation statements)

References 18 publications

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“…In Ref. [61], a coreless SSDR AFPM motor for camera stabilisation system used in the aviation industry was constructed using a rectangular magnet with a conventional arrangement. In Ref.…”

Section: Magnet Geometry and Arrangementmentioning

confidence: 99%

“…A cost-effective design for double-sided inner-coreless-stator AFPM generators Micro-wind power [87] Low-speed, direct-drive coreless AFPM generator: simple structure, light weight, and high efficiency over a wide range of operating speeds Small wind turbine power [86] Proposed low cost design aspects of a coreless axial-flux permanent-magnet generators, particularly suitable for rural electrification projects Wind power applications [61] Developed a new axial-flux permanent-magnet multi-stage synchronous generator (PMSA) that can generate electrical energy within the limits of rotor rotational speed…”

Section: Wind Turbine Application [88]mentioning

confidence: 99%

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A systematic review on current research and developments on coreless axial‐flux permanent‐magnet machines

Habib

Zainuri

Seng

et al. 2022

IET Electric Power Appl

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In recent years, coreless axial-flux permanent-magnet (AFPM) machines have been gaining attention. Being coreless, these machines do not experience eddy current (hence hysteresis losses) and has lower cogging torque leading to higher efficiency. However, limitations such as high leakage flux and weak mechanical structure impede its wide application. The results of a systematic review on coreless AFPM machine research is presented, wherein a total of 123 studies have been selected through the Preferred Reported Items for Systematic Reviews and Meta-Analysis (PRISMA) protocol. About 55% of the articles have been published between 2017 and 2021, indicating recent attention of the researchers on coreless AFPM machines. More than 70% (87 out of 123) of the records have been published by IEEE, which proves the quality and acceptance of the studies. In two-thirds (77 out of 123) of the studies, single-stator double-rotor has been adopted as the machine topology, and in 71.8% (84 out of 123) cases, trapezoidal shape magnets have been used in conventional array. The key research areas on coreless AFPM identified through this review are to produce an efficient design for multiphase and multistage topology and develop lightweight rotor and stator structures.

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“…In Ref. [61], a coreless SSDR AFPM motor for camera stabilisation system used in the aviation industry was constructed using a rectangular magnet with a conventional arrangement. In Ref.…”

Section: Magnet Geometry and Arrangementmentioning

confidence: 99%

Section: Wind Turbine Application [88]mentioning

confidence: 99%

A systematic review on current research and developments on coreless axial‐flux permanent‐magnet machines

Habib

Zainuri

Seng

et al. 2022

IET Electric Power Appl

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“…The magnetic and geometric parameters of a PCB stator AFPM machine are analytically derived and optimised using a genetic algorithm by Tokgoz et al in refs. [36,37]. In this study, the FE analysis was only performed to verify the selected design.…”

Section: Introductionmentioning

confidence: 99%

Ultra‐fast finite element analysis of coreless axial flux permanent magnet synchronous machines

Chulaee,

Ionel

2024

IET Electric Power Appl

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Large‐scale design optimisation techniques enable the design of high‐performance electric machines. Electromagnetic 3D finite element analysis (FEA) is typically employed in optimisation studies for accurate analysis of axial flux permanent magnet (AFPM) machines, which require extensive computational resources. To reduce the computational burden, a FEA‐based mathematical method relying on the geometric and magnetic symmetry of coreless AFPM machines is proposed to estimate the machine performance indicators using the least number of FEA solutions, thereby significantly lowering the running time. This method is generally applicable to AFPM machines with low saturation effects and cogging torque as exemplified for a printed circuit board (PCB) stator coreless AFPM machine. To further reduce the computation time, a systematically simplified equivalent 3D FEA model for planar PCB coils integrated with this machine is also proposed. The practical implementation of the introduced method is elaborated based on an example optimisation study, and an analytical method for fast design scaling is also discussed. The results of the proposed approach are compared with detailed transient FEA results, and a prototype 26‐pole PCB stator coreless AFPM machine was also used to validate the results experimentally.

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“…The AFPM machine has a variety of classical structures; wherein, the configuration with double rotors and a single stator is preferred chiefly [4,5], and the stator core is not necessarily required to form a closed magnetic circuit in the design. By eliminating the iron core of the stator, the coreless AFPM machine has the following advantages [6][7][8]: (1) The quality and cost of the machine are reduced; (2) The loss of the stator core and the cogging torque of the machine are eliminated; (3) The inductance of windings is small, and the influence of the stator current on the air gap flux density is almost negligible; (4) The ability of overload is greatly improved; (5) The arrangement of coils is more flexible and not constrained by slots and teeth of the stator.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Coreless Axial Flux Permanent Magnet Machine with Novel Composite Structure Coils

Wang

Cui³

et al. 2022

Energies

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In this paper, a type of novel composite structure coil applied in the coreless stator is proposed and studied to improve the output performance and efficiency of the axial flux permanent magnet (AFPM) machine. In which the effective conductor is changed to be wedge-shaped by the rolling technology so that the turns of coils and filling factor can be further increased, and the ends are kept in the cylinder with a larger diameter to reduce the DC copper loss. Meanwhile, the air region between the double rotors of the machine is also modified to be wedge-shaped, which fully matches the proposed coils and shortens the air gap length. The advantages of performance can be verified by the three-dimensional (3D) finite element analysis (FEA) and analytical method so that the output characteristics of no-load and load can be improved, and the DC copper loss and eddy current loss of coils can be reduced. The coreless AFPM machine finally performs a high efficiency of 95.34% according to these valuable optimizations.

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Design and Implementation of an Optimized Printed Circuit Board Axial-Flux Permanent Magnet Machine

Cited by 11 publications

References 18 publications

A systematic review on current research and developments on coreless axial‐flux permanent‐magnet machines

A systematic review on current research and developments on coreless axial‐flux permanent‐magnet machines

Ultra‐fast finite element analysis of coreless axial flux permanent magnet synchronous machines

Design and Analysis of Coreless Axial Flux Permanent Magnet Machine with Novel Composite Structure Coils

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