Design optimisation of an axial‐flux reluctance magnetic coupling based on a two‐dimensional semi‐analytical model

Lubin, Thierry; Vahaj, Amir Abbas; Rahideh, Akbar

doi:10.1049/iet-epa.2019.0746

Cited by 6 publications

(18 citation statements)

References 23 publications

(77 reference statements)

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“…Indeed, an important assumption was that the iron of the SP had an infinite magnetic permeability which allowed to model the SP as a simple boundary condition. Consequently, the model was able to predict the optimal SP opening for a 3 mm air-gap but not for a 1 mm air-gap [11]. These results have shown the necessity of accounting the iron saturation in the analytical modelling of reluctance actuators.…”

Section: Introductionmentioning

confidence: 96%

“…In previous works, 3-D analytical models for axial-flux magnetic couplings have been proposed for both PM couplings [8] and asynchronous couplings [9], [10]. More recently, a 2-D semi-analytical model of a reluctance coupling has been developed from a simplified geometry by neglecting the curvature and considering the end Non-linear 3-D semi-analytical model for an axial-flux reluctance magnetic coupling Rémi Dorget and Thierry Lubin M effects in the torque and axial force calculation by using a correction factor [11]. The proposed model proved to be accurate for wide air-gaps at a very small computational cost.…”

Section: Introductionmentioning

confidence: 99%

“…These results have shown the necessity of accounting the iron saturation in the analytical modelling of reluctance actuators. The method proposed in [11] could be improved by modelling the SP as a subdomain with a finite permeability using the superposition technique described in [12], [13]. With this technique, an iterative process can be implemented to account for the global saturation of the SP.…”

Section: Introductionmentioning

confidence: 99%

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Non-Linear 3-D Semi-Analytical Model for an Axial-Flux Reluctance Magnetic Coupling

Dorget

Lubin

2022

IEEE Trans. Energy Convers.

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This article presents a 3-D semi-analytical model of an axial-flux reluctance coupling. Thanks to the separation of variable s method, Fourier series analysis and the convolution the orem (i.e. Cauchy's product), the salient-pole region is modelled by a spatially variable magnetic permeability. Additionally, an iterative algorithm is implemented to account for the magnetic saturation of the iron teeth. The results of the proposed model are compared with a previously published 2-D se mi-analytical model, 3-D finite-element method and e xperimental results. The proposed method appears to be an appropriate tool for the design process of reluctance couplings in cases where the salient poles are saturated.

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Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Non-Linear 3-D Semi-Analytical Model for an Axial-Flux Reluctance Magnetic Coupling

Dorget

Lubin

2022

IEEE Trans. Energy Convers.

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“…Among these, intelligent algorithms such as the genetic algorithm (GA), particle swarm algorithm, and simulated annealing algorithm have been widely used in the design of gradient coils [17], shim coils [18], and self-shielded coils [19]. In addition, the multiobjective optimization design of induction machines [20], transformers [21], permanent magnet generators [22,23], and reluctance magnetic coupling [24] based on the non-dominated sorting GA ( non-dominated sorting genetic algorithm (NSGA-II)) [25] have been reported. Generally, the multiobjective problem presents a set of solutions called the Pareto frontier, which includes the optimal solutions of the best compromise satisfying all objectives.…”

Section: Introductionmentioning

confidence: 99%

Multi‐objective optimization design of the large‐scale high‐intensity homogeneous magnetic field coil system based on non‐dominated sorting genetic algorithm (NSGA‐II)

Zhu

Yang

et al. 2022

IET Electric Power Appl

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With the development of modern tokamak devices, the magnetic interference problem has become increasingly serious. On considering the International Thermonuclear Experimental Reactor (ITER), for example, the stray magnetic field around the tokamak device will be over 200 mT. To ensure the reliable operation of the electrical and electronic equipment installed around the tokamak, the magnetic immunity test becomes a mandatory requirement. Generally, a set of coils is employed to realize the required test field. Since the coil power loss and conductor mass are proportional to the dimension and intensity of the test field, optimization design is of great significance. This paper presents the multi‐objective optimization design of a large‐scale high‐intensity homogeneous magnetic field coil system. The analytical model of the multi‐coil system is proposed, and the constrained multi‐objective optimization model is established based on the non‐dominated sorting genetic algorithm. Taking the ITER test coil as an example, the optimization design is performed and the Pareto‐front is figured out. The designed four‐coil system enables the magnetic field immunity tests for equipment within 1 m side‐length at a highest test level of 275 mT with a magnetic field inhomogeneity of 1.05. The validity of the proposed model is verified by the finite element analysis and experimental tests.

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“…The structure of ECB is simple and reliable. The ECB has high performance, good durability, easy maintenance, long working life, and other advantages [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Characteristic and Thermal Analysis of Permanent Magnet Eddy Current Brake

Li¹,

Yang²,

Sun³

2021

Computer Modeling in Engineering &Amp; Sciences

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In this paper, the subdomain analysis model of the eddy current brake (ECB) is established. By comparing with the finite element method, the accuracies of the subdomain model and the finite element model are verified. Furthermore, the resistance characteristics of radial, axial, and Halbach arrays under impact load are calculated and compared. The axial array has a large braking force coefficient but low critical velocity. The radial array has a low braking force coefficient but high critical velocity. The Halbach array has the advantages of the first two arrays. Not only the braking force coefficient is large, but also the critical speed is high. The parameter analysis of the Halbach array is further carried out. The inner tube thickness and air gap length are the sensitive factors of resistance characteristics. The demagnetization effect is significantly enhanced by the increase of the inner tube thickness. In order to ensure that the ECB does not overheat, the electromagnetic-thermal coupling model is established based on the heat transfer theory. The temperature rise of the inner tube is obvious while that of the permanent magnet is small. The temperature rise of the inner tube is more than 20 K each time, and that of the permanent magnet is less than 1 K each time.

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Design optimisation of an axial‐flux reluctance magnetic coupling based on a two‐dimensional semi‐analytical model

Cited by 6 publications

References 23 publications

Non-Linear 3-D Semi-Analytical Model for an Axial-Flux Reluctance Magnetic Coupling

Non-Linear 3-D Semi-Analytical Model for an Axial-Flux Reluctance Magnetic Coupling

Multi‐objective optimization design of the large‐scale high‐intensity homogeneous magnetic field coil system based on non‐dominated sorting genetic algorithm (NSGA‐II)

Characteristic and Thermal Analysis of Permanent Magnet Eddy Current Brake

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