Performance Characteristics of a Transverse Flux Generator

Gieras, Jacek F.

doi:10.1109/iemdc.2005.195889

Cited by 29 publications

(24 citation statements)

References 2 publications

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“…In order to obtain a three-phase generator, three similar single phase modules (Figure 1), shifted in space by 120 electrical degrees, must be used [27]. In this design, there are as many E and I-shaped cores as machine's pole pairs.…”

Section: The Proposed Structurementioning

confidence: 99%

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Design, Analysis and Fabrication of a Novel Transverse Flux Permanent Magnet Machine with Disk Rotor

Azarinfar

Aghaebrahimi

2017

Applied Sciences

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Abstract:The purpose of this paper is to propose a novel design for the transverse flux permanent magnet (TFPM) disk-rotor generator with E and I-shaped cores (TFPMDEIG). Disk-shape structure increases the machine's power factor, allows for high rotational speeds, decreases centrifugal force over permanent magnets, and is employed in wind turbines, due to its compact structures. As for other advantages for this structure, one can point to the fact that there are as many windings as machine's pole pairs; these windings become parallel by observing the polarity. In other words, the total power of this machine is distributed between pole pairs, increasing the overall reliability of the machine. In this paper, first, the initial design algorithm and the basic formulas governing the behavior of the proposed structure using the equivalent magnetic circuit for each pole are provided, and the three-dimensional finite element method (3D-FEM) is used for verification of the algorithm. To validate the simulation results (3D-FEM), then, a prototype has been fabricated and experienced. The experimental results are in good agreement with simulation results.

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Section: The Proposed Structurementioning

confidence: 99%

“…The number of winding (N p ) can be calculated using the synchronous machine equivalent circuit presented in Figure 8, and the nonlinear Equation (27):…”

Section: Computing Final No Load Voltage Of the Generatormentioning

confidence: 99%

Design, Analysis and Fabrication of a Novel Transverse Flux Permanent Magnet Machine with Disk Rotor

Azarinfar

Aghaebrahimi

2017

Applied Sciences

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“…The back EMF can be calculated using (20) and the reactance can be calculated according to (30). Therefore, the power factor can be directly calculated.…”

Section: Power Factormentioning

confidence: 99%

“…The current trend to study machines with complicated geometries such as TFMs [20], [21], [22], [23], [24], [25], [26], [27], [28], [29] and claw pole machines [30], [31], [32], [33], [34] is to use 3D CAD modelling and numerical methods like finite element analysis (FEA). This approach produce accurate results but does not provide an insight as deep as that provided by analytical methods.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Transverse Flux Machines Using a Virtual Mutual Inductance Approach

Anglada

Sharkh

2018

IEEE Trans. Energy Convers.

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Abstract-In this paper a virtual mutual inductance approach is used to analyse the performance of transverse flux machines (TFMs). The virtual mutual inductance between the stator windings and the magnets' equivalent currents is obtained by integrating the flux produced by the stator windings over the surface of the magnets. Key design parameters such as back EMF, torque, phase inductance and power factor are readily calculated using the proposed methodology. This method is also used to optimise the geometry of a particular machine which provides an insight into the relationship between power factor and torque. Furthermore, the insights gained suggest a design approach that takes into account the power factor of TFMs, which may help unlock their potential through a trade-off between torque density and power factor. The results obtained using the analytical model are verified using 3D finite element analysis (FEA) and experimental data.

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“…The capability of having large pole numbers, combined with the torque from a TFPMG being almost proportional to the number of poles, makes TFPMGs particularly suitable for gearless wind turbines [3], [4]. As far as the authors know, all previously proposed rotary TFPMGs have a cylindrical structure [5]- [7]. Disadvantages of the cylindrical structures include large inductance, which leads to a lower power factor (PF) [8], [9], and construction difficulties related to the use of laminated steel sheets for the construction of the stator cores [10].…”

Section: Introductionmentioning

confidence: 99%

Design, Prototyping, and Analysis of a Novel Modular Permanent-Magnet Transverse Flux Disk Generator

et al. 2011

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This paper presents the design, prototyping, and analysis of a novel modular transverse flux permanent magnet disk generator. The disk-shaped structure simplifies the construction procedure by using laminated steel sheets. To reduce output harmonics, the excitation of the generator is done by circular flat shaped Nd-Fe-B permanent magnets. First, a typical low power generator is designed, and then partially optimized. The optimization objective is to find an inner radius which maximizes the power factor, the output power to mass ratio and the efficiency. The generator equivalent circuit parameters are computed by three dimensional finite element analyses. The simulation results show that the power factor of the proposed structure is considerably greater than the power factor previously reported for other transverse flux permanent magnet generator structures. To verify the simulation results, a prototype has been constructed and tested. The experimental results are in good agreement with simulation results.Index Terms-Disk-shaped structure, finite element analyses, power factor, prototype, transverse flux generator.

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Performance Characteristics of a Transverse Flux Generator

Cited by 29 publications

References 2 publications

Design, Analysis and Fabrication of a Novel Transverse Flux Permanent Magnet Machine with Disk Rotor

Design, Analysis and Fabrication of a Novel Transverse Flux Permanent Magnet Machine with Disk Rotor

Analysis of Transverse Flux Machines Using a Virtual Mutual Inductance Approach

Design, Prototyping, and Analysis of a Novel Modular Permanent-Magnet Transverse Flux Disk Generator

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