Sub-Domain Model of Eddy Current Loss in Windings for Flux-Switching Permanent Magnet Machine under Open-Circuit Condition

Oner, Y.

doi:10.1080/02726343.2015.1105717

Cited by 3 publications

(4 citation statements)

References 14 publications

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“…However, simplifying assumptions have to be adopted, such as infinite iron permeability and neglected end effects. The electromagnetic modelling of FSPMs using Fourier series has been accomplished in no‐load [108–110] and full‐load [111–113] conditions. The flux density in the airgap is calculated using Fourier series [111, 112], the cogging torque [108, 114] and also winding eddy current loss [109] are analytically derived based on sub‐domains.…”

Section: Fspm Modelling and Design Optimisationmentioning

confidence: 99%

“…The electromagnetic modelling of FSPMs using Fourier series has been accomplished in no‐load [108–110] and full‐load [111–113] conditions. The flux density in the airgap is calculated using Fourier series [111, 112], the cogging torque [108, 114] and also winding eddy current loss [109] are analytically derived based on sub‐domains. This method can be used to model any

P_{m} / T_{r}

ratio with an arbitrary number of sub‐domains, in a general formulation [113].…”

Section: Fspm Modelling and Design Optimisationmentioning

confidence: 99%

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Performance modifications and design aspects of rotating flux switching permanent magnet machines: a review

Nobahari

Aliahmadi

Faiz

2019

IET Electric Power Applications

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Permanent magnet flux switching machines (FSPMs) have attracted considerable attention in recent years, due to their outstanding characteristics to operate as brushless AC drives. Since they are relatively new, there are particular challenges not only for their design procedure but also for their operating principle comprehension. This study highlights several issues on FSPMs from the basic operation description to their key design points. After a comprehensive description of FSPMs working principles, a detailed discussion is presented on their armature winding design. In addition, this study reviews various methods for their performance modification, including torque profile, electromotive force, and loss characteristics. This study also surveys field regulation technologies, modelling and design optimisation methods applied to FSPMs along with their fabrication and cost issues.

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Section: Fspm Modelling and Design Optimisationmentioning

confidence: 99%

P_{m} / T_{r}

ratio with an arbitrary number of sub‐domains, in a general formulation [113].…”

Section: Fspm Modelling and Design Optimisationmentioning

confidence: 99%

Performance modifications and design aspects of rotating flux switching permanent magnet machines: a review

Nobahari

Aliahmadi

Faiz

2019

IET Electric Power Applications

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“…In order to overcome the defects of the FEM, scholars have made a lot of achievements in the field of motor designs in the past few decades, but few research studies related to BFSPMMs are available. However, for the study of BFSPMMs, theoretical analysis methods of motors with the doubly-salient structure such as FSPMMs can be used for reference, including the magnetic equivalent circuit method [16][17][18], Schwarz-Christoffel transform method [19], subdomain model method [20][21][22], and relative permeance method [23,24]. In [16][17][18], the magnetic equivalent circuit method of the FSPMMs and BFSPMMs is introduced.…”

Section: Introductionmentioning

confidence: 99%

“…In [20], a subdomain model is developed to compute the no‐load and load magnetic field distribution in flux reversal machines. In [21, 22], accurate subdomain models for the FSPMMs are developed. It can be found that the subdomain model method can calculate the magnetic field exactly.…”

Section: Introductionmentioning

confidence: 99%

Analytical calculation of magnetic field of bearingless flux‐switching permanent‐magnet machine based on doubly‐salient relative permeance method

Zhou

2020

IET Electric Power Applications

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A doubly-salient relative permeance method is presented herein to predict the magnetic field of bearingless fluxswitching permanent-magnet machines (BFSPMMs). Firstly, the subdomain model method is used to compute the magnetic field of slotless BFSPMMs. Then, the slotting effect of the stator and rotor is obtained by the doubly-salient relative permeance method. By combining the two above, the air-gap magnetic field of slotted BFSPMMs can be obtained. The doubly-salient relative permeance method is based on the theory of the subdomain model method. The whole doubly-salient structure is divided into several subdomains, and the Laplace equations for subdomains are established. Then, according to the boundary conditions between subdomains and the core, and the continuity conditions between adjacent subdomains, the equations are solved to calculate the slotting effect. Based on the proposed analytical model, the flux density and electromagnetic performances including back-electromotive force (EMF), torque, and suspension force are predicted and compared with the finite element method results. Furthermore, the back-EMF of the prototype motor is measured and the suspension experiments are carried out based on the analytical method. The comparison results and experiment results verify the validity of the analytical method.

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Analytical model of flux switching permanent magnet machine under armature reaction condition

Oner

Şenol²

2016

International Journal of Applied Electromagnetics and Mechanics

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This paper presents an analytical sub-domain model for predicting magnetic flux density and winding inductance flux switching permanent magnet (FS-PM) under armature reaction. It is obtained by solving Poisson and Laplace equations in polar coordinates for each domain, i.e. air gap, rotor and stator slots. The model accounts for the influence of interaction between the stator slots and air gap, as well as rotor slots and air gap and winding inductances are obtained from the analytical method and compared by finite element analysis (FEA). Magnetic field distribution are derived from the analytical method and verified by finite element analysis (FEA).

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Sub-Domain Model of Eddy Current Loss in Windings for Flux-Switching Permanent Magnet Machine under Open-Circuit Condition

Cited by 3 publications

References 14 publications

Performance modifications and design aspects of rotating flux switching permanent magnet machines: a review

Performance modifications and design aspects of rotating flux switching permanent magnet machines: a review

Analytical calculation of magnetic field of bearingless flux‐switching permanent‐magnet machine based on doubly‐salient relative permeance method

Analytical model of flux switching permanent magnet machine under armature reaction condition

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