An Experimental Analysis on Cogging Torque of Axial Flux Permanent Magnet Synchronous Machine

Ayçiçek, Engin; Bekiroglu, Nur; Ozcira, Selin

doi:10.1007/s40010-015-0235-z

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…Due to the inherent three-dimensional (3-D) structure and magnetic flux path, the magnetic flux density distributions along the radial and axial directions of AFPM motors show curvature effects and edge effects independently [63]. The 3-D FEA is generally recognized as the most accurate numerical tool for solving Maxwell equations of each volume element under boundary conditions, so the electromagnetic modeling based on FEA are widely used [64][65][66]. Some references [67][68][69] compared the solutions of the proposed new model with the results of 3-D FEA analysis to verify the rationality as well.…”

Section: Electromagnetic Modelingmentioning

confidence: 99%

A Review of Axial-Flux Permanent-Magnet Motors: Topological Structures, Design, Optimization and Control Techniques

Hao

Wang

et al. 2022

Machines

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Axial-flux permanent-magnet (AFPM) motors are a kind of important motor with compact structure, high power density and high torque density. In this review, the progress of AFPM motors and their key technologies are analyzed and described, with emphasis on the topological structures, design and optimization methods and control techniques. Based on these analyses, the main findings of the review are the following: (1) the yokeless and segment armature (YASA)-type motors have great potential for development; (2) the multi-objective optimization design theories can be integrated and applied to optimize the design of AFPM motors; and (3) optimal control and sensorless control have important value in improving system reliability and reducing cost. Finally, highlights and prospects are provided for further advancing AFPM motors.

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Section: Electromagnetic Modelingmentioning

confidence: 99%

A Review of Axial-Flux Permanent-Magnet Motors: Topological Structures, Design, Optimization and Control Techniques

Hao

Wang

et al. 2022

Machines

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“…Table 4 shows the values of the design variables. Design variables are calculated using (6)(7)(8)(9)(10)(11). Thus, the effect of each variable level is determined for factor graphs.…”

Section: Average Effectmentioning

confidence: 99%

“…However, the disadvantage is the cogging torque -the torque fluctuation due to the interaction between the magnet and slot edges [4][5]. There are different techniques in the literature to reduce cogging torque, such as different magnet shapes, magnet skew techniques, magnet placement angle in the self axis (for rectangular magnets) and magnet grouping techniques [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Bulletin of the Polish Academy of Sciences: Technical Sciences

Hüner¹

2020

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In this study, the optimization of air gap magnetic flux density of open slotted axial flux permanent magnet (AFPM) machine which was developed for wind turbine has been obtained using the Taguchi experimental method. For this, magnetic analyzes were performed by ANSYS Maxwell program according to Taguchi table. Then the optimum values have been determined and the average magnetic flux density values have been calculated for air gap and iron core under load and no-load conditions with ANSYS Maxwell. Traditionally, 15625 analyzes are required for 6 independent variables and 5 levels when experimental method is used. In this study, optimum values are determined by 25 magnetic analyzes, which use L25 orthogonal array. For this purpose, both factor effect graph and signal to noise ratios are used, according to the factors and levels which are obtained from the factor effect graph and the signal to noise ratio. Parameters are re-analyzed by Maxwell. The optimum factors and levels are determined. For optimized values, the air gap magnetic flux density is improved by 65.7% and 173.26%, respectively, according to the average value and the initial design. Therefore, the variables are optimized in a shorter time with Taguchi experimental design method instead of the traditional design method for open slotted AFPM generator. In addition, the results were analyzed statistically using ANOVA and Regression model. The variables were found to be significant by ANOVA. The degree of influence of the variables on the air gap magnetic flux density was also determined by the Regression model.

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“…Slot opening is important in axial flux machine and leads to cogging torque so much in comparison with slot structure [6]. Also, the generated cogging torque in the AFPM synchronous generator with open-slotted creates harmonics form in the voltage curve [7].…”

Section: Introductionmentioning

confidence: 99%

Reduction of Cogging Torque and Improvement of Electrical Parameters in Axial Flux Permanent Magnet (Afpm) Synchronous Generator With Experimental Verification

Hüner¹,

Zeka²

2020

PIER C

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This paper presents an axial flux permanent magnet (AFPM) synchronous generator that was manufactured for the reduction of cogging torque by considering the different angles of a rectangleshaped permanent magnet (RSPM). The placement angle of RSPM was changed from 0 to 28 degrees to obtain total harmonic distortion, line voltage, and cogging torque. A numerical finite element model using Maxwell software was created. The model was validated by the experimental results, with and without a load. The optimum placement angle was obtained at 20 degrees, whose total harmonic distortion (Thd) and cogging torque (Tc) were improved by 41.6% and 71.4%, respectively.

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An Experimental Analysis on Cogging Torque of Axial Flux Permanent Magnet Synchronous Machine

Cited by 4 publications

References 5 publications

A Review of Axial-Flux Permanent-Magnet Motors: Topological Structures, Design, Optimization and Control Techniques

A Review of Axial-Flux Permanent-Magnet Motors: Topological Structures, Design, Optimization and Control Techniques

Bulletin of the Polish Academy of Sciences: Technical Sciences

Reduction of Cogging Torque and Improvement of Electrical Parameters in Axial Flux Permanent Magnet (Afpm) Synchronous Generator With Experimental Verification

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