Magnetic Field Analysis of Inset and Surface-Mounted Permanent-Magnet Synchronous Motors Using Schwarz–Christoffel Transformation

Boughrara, Kamel; Žarko, Damir; Ibtiouen, R.; Touhami, O.; Rezzoug, A.

doi:10.1109/tmag.2009.2016559

Cited by 87 publications

(69 citation statements)

References 17 publications

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“…2 shows the z-plane, which is the real geometry, and the transformed domains (w and χ planes), which are described later in the paper. The magnetic field distribution is obtained using a complex permeance (CP) function [7], [8], [9] adapted for a homopolar field distribution. We are assuming that the permeability of the iron is infinite and the effect of saturation is negligible.…”

Section: Field Solution In the Air-gapmentioning

confidence: 99%

“…The complex permeance method proposed by Zarko et al [7], [8], [9] uses conformal mapping to obtain a complex permeance (CP) function that modulates the magnetic field distribution from the slotless configuration. One of the main disadvantages of the complex permeance method proposed by Zarko is that the computation time is relatively high because of the necessity of evaluating the permeance function in a great number of points to generate whole waveform [10].…”

Section: Introductionmentioning

confidence: 99%

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Analytical calculation of air-gap magnetic field distribution in transverse-flux machines

Anglada

Sharkh

2016

2016 IEEE 25th International Symposium on Industrial Electronics (ISIE)

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Abstract-Analytical methods are useful tools in the design of rotating electric machines because the simulation times tend to be low and they provide a good insight. However, in the analysis of non-traditional machines, like the transverse-flux machine (TFM), the most common approach is to use finite element analysis (FEA). In this paper we show how to use the complex permeance (CP) methodology to obtain the magnetic field distribution on the air-gap of a homopolar TFM produced by the stator windings. The properties of the CP function are based on conformal mapping theory. Also, we propose an algorithm to estimate the parameters of the CP function after evaluating the function in a set of randomly generated number of points, which reduces the computation time significantly. The proposed methodology is applied to a single-sided TFM showing that the results are consistent with FEA calculations.

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Section: Field Solution In the Air-gapmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical calculation of air-gap magnetic field distribution in transverse-flux machines

Anglada

Sharkh

2016

2016 IEEE 25th International Symposium on Industrial Electronics (ISIE)

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“…Many authors have proposed analytical simplified and exact models based on subdomain method in order to study the stator slotting effects (with or without tooth-tips) on magnetic field distribution and electromagnetic performances (under no-load and load conditions) in radial inset and surface-mounted permanent magnet motors [1][2][3][4][5][6][7][8][9][10][11]. It was shown that the accuracy of subdomain models is higher than permeance models [12] or conformal transformations models [13][14][15]. However, there are no authors who applied simplified analytical model for predicting magnetic field and electromagnetic performances in parallel double excitation and spoke-type PM motors.…”

Section: Introductionmentioning

confidence: 99%

Analytical Calculation of Parallel Double Excitation and Spoke-Type Permanent-Magnet Motors; Simplified Versus Exact Model

Boughrara¹,

Lubin

Ibtiouen³

et al. 2013

PIER B

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Abstract-This paper deals with the prediction of magnetic field distribution and electromagnetic performances of parallel double excitation and spoke-type permanent magnet (PM) motors using simplified (SM) and exact (EM) analytical models. The simplified analytical model corresponds to a simplified geometry of the studied machines where the rotor and stator tooth-tips and the shape of polar pieces are not taken into account. A 2D analytical solution of magnetic field distribution is established. It involves solution of Laplace's and Poisson's equations in stator and rotor slots, airgap, buried permanent magnets into rotor slots and non magnetic region under magnets. A comparison between the results issued from the simplified model with those from exact model (EM) (which represents a more realistic geometry with stator and rotor tooth-tips and the shape of polar pieces) is done to show the accuracy of the simplified geometry on magnetic field distribution and electromagnetic performances (cogging torque, electromagnetic torque, flux linkage, back-EMF, self and mutual inductances). The analytical results are verified with those issued from finite element method (FEM).

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“…Inset PM subregion in PM machines is not deep and the width is high. So, it can be modeled accurately D with conformal mapping [25]. In references [15]- [17], authors have developed an exact analytical solution based on subdomain model for predicting open circuit and armature reaction in slotted stator radial surface mounted permanent magnet motor taking into account tooth tips.…”

Section: Introductionmentioning

confidence: 99%

Analytical Prediction of Magnetic Field in Parallel Double Excitation and Spoke-Type Permanent-Magnet Machines Accounting for Tooth-Tips and Shape of Polar Pieces

2012

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Magnetic Field Analysis of Inset and Surface-Mounted Permanent-Magnet Synchronous Motors Using Schwarz–Christoffel Transformation

Cited by 87 publications

References 17 publications

Analytical calculation of air-gap magnetic field distribution in transverse-flux machines

Analytical calculation of air-gap magnetic field distribution in transverse-flux machines

Analytical Calculation of Parallel Double Excitation and Spoke-Type Permanent-Magnet Motors; Simplified Versus Exact Model

Analytical Prediction of Magnetic Field in Parallel Double Excitation and Spoke-Type Permanent-Magnet Machines Accounting for Tooth-Tips and Shape of Polar Pieces

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