Analytical modeling of an axial flux permanent magnet synchronous generator for wind energy application

Azzouzi, J.; Barakat, Georges; Dakyo, Brayima

doi:10.1109/iemdc.2005.195883

Cited by 19 publications

(13 citation statements)

References 4 publications

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“…Referring to the proposed MEC, the permeance matrix for the LPMS motor with the parameters as in the Appendix is formed by using (1)-(7) and the node equations of the MEC are derived according to (8) and (9). Equations (10) and (11) are then solved numerically, resulting in values under teeth and slots.…”

Section: Evaluation Of the Proposed Methodsmentioning

confidence: 99%

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Enhanced Modeling of Linear Permanent-Magnet Synchronous Motors

Vaez‐Zadeh

Isfahani

2007

IEEE Trans. Magn.

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Modeling of air-gap flux density distribution produced by magnet poles is essential for analysis and design of linear permanent-magnet synchronous motors. This is usually done by time-consuming numerical methods which are difficult to be incorporated in iterative motor design procedures or by approximate models which lack desirable accuracy. This paper presents an alternative method to model the air-gap flux density distribution which is both accurate and simple enough to be integrated into iterative motor design procedures. It consists of the solution of an improved magnetic equivalent circuit and an air-gap flux density distribution function (FDDF). The end teeth effects and magnetic saturation of iron core can be taken into account in the modeling. Different motor characteristics are calculated by means of the proposed FDDF. The accuracy of the proposed method in modeling of the machines is verified by the finite-element method and its superiority over a recent method based on an extensive machine model is demonstrated.

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Section: Evaluation Of the Proposed Methodsmentioning

confidence: 99%

“…Magnetic saturation of iron core and infinite length of machines are also considered in the models [7]. Actual distribution of primary coils is taken into account by using distribution function of coils [8] [9]. Nevertheless, these compensations lead to the complexity of equations.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Modeling of Linear Permanent-Magnet Synchronous Motors

Vaez‐Zadeh

Isfahani

2007

IEEE Trans. Magn.

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“…This gives a 2D problem in the z-θ coordinate system which is thoroughly discussed in Azzouzi et al (2005) and Bellara et al (2010). Since no solution of the Poisson equation in z-θ coordinate system is available, the winding is modeled as linear current density at the boundary between two air regions (Table IV).…”

Section: Inductance Component Of the Flank Parts Of The Windingmentioning

confidence: 99%

Inductance calculation of high-speed slotless permanent magnet machines

Jumayev¹,

Borisavljevic²,

Boynov³

et al. 2015

COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose -The purpose of this paper is to give a simple, fast and universal inductance calculation approach of slotless-winding machines and comparison of inductances of toroidal, concentrated and helical-winding machines, since these winding types are widely used among low-power PM machines. Design/methodology/approach -Harmonic modeling approach is applied to model the magnetic field of the windings in order to calculate the synchronous inductances. The method is based on distinction between electromagnetic properties of different regions in the machine where each region is represented by its own governing equation describing the magnetic field. The governing equations are obtained from Maxwell's equations by introducing vector potential in order to simplify the calculations. Findings -Results of the inductances of toroidal, concentrated and helical-winding slotless PM machines, which have the same torque and dimensions, obtained by the proposed analytical method are in good agreement with 3D FEM, where the relative difference is smaller than 15 percent. However, the calculation time of the analytical method is significantly less than in 3D FEM: seconds vs hours. Additionally, from the results it is concluded that the toroidal-winding machine has the highest inductance and DC resistance values among considered machines. Helical-winding machine has lowest inductance and DC resistance values. Inductance of concentrated-winding machine is between inductance of helical and toroidal windings; however, DC resistance of the concentrated windings is comparable with resistance toroidal windings. Originality/value -In this paper the inductance calculation based on harmonic modeling approach is extended for toroidal and helical-winding machines which makes the method applicable for most of the slotless machine types.

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“…Hence, combining the merits of the axial field and the flux switching machines, an axial airgap flux switching permanent magnet synchronous machine suitable for small wind energy turbines (order of 10kW) was designed and prototyped. The design is based on specifications that the GREAH laboratory has been working on for a long time [10][11][12][13]. These specifications are used as 2 of 19 a reference to design different types of alternators and then compare their performance.…”

Section: Introductionmentioning

confidence: 99%

“…These specifications are used as 2 of 19 a reference to design different types of alternators and then compare their performance. In [11,12], the focus was on the design, development, and analysis of a surface-mounted permanent magnet (PM) axial field prototype, while in [10,13], the focus was on a flux switching PM axial field machine.…”

Section: Introductionmentioning

confidence: 99%

Open Circuit Performance of Axial Air Gap Flux Switching Permanent Magnet Synchronous Machine for Wind Energy Conversion: Modeling and Experimental Study

2020

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The aim of this paper is to present the design and modeling of a machine that possesses some advantageous characteristics for wind energy conversion applications. The studied machine is a double stator inner rotor axial airgap flux switching permanent magnet machine (AFSPM). The paper will start by presenting this type of machine and its points of interest. Then, it will continue by introducing the constructed prototype and its specifications and structure. This prototype has been designed based on a reference specification used at GREAH to develop different prototypes and compare their performances. The second part will introduce the reluctance network model specifically constructed for this type of machine. The constructed model was validated by comparing its results to the results from the finite element method model. Finally, the experimental results will be presented and compared to the reluctance network (RN) model results where satisfying agreement between both results was obtained.

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Analytical modeling of an axial flux permanent magnet synchronous generator for wind energy application

Cited by 19 publications

References 4 publications

Enhanced Modeling of Linear Permanent-Magnet Synchronous Motors

Enhanced Modeling of Linear Permanent-Magnet Synchronous Motors

Inductance calculation of high-speed slotless permanent magnet machines

Open Circuit Performance of Axial Air Gap Flux Switching Permanent Magnet Synchronous Machine for Wind Energy Conversion: Modeling and Experimental Study

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