Electromagnetic Analysis and Efficiency Improvement of Axial-Flux Permanent Magnet Motor With Yokeless Stator by Using Grain-Oriented Silicon Steel

Geng, Weiwei; Hou, Jining; Li, Qiang

doi:10.1109/tmag.2021.3081186

Cited by 19 publications

(5 citation statements)

References 8 publications

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“…The parameters of the modal force hammer and axial acceleration sensor are listed in Tab. 6 The hammer method was used to establish 24×2=48 vibration measurement points on the positive and negative sides of the stator disk. The directions of the excitation and picking points were along the normal directions of the structural surface.…”

Section: Modal Testmentioning

confidence: 99%

“…Owing to their high power density, high efficiency, and compact structure, axial-flux permanent magnet (AFPM) machines have been increasingly used in hybrid vehicles, emergency power generation, and other fields [1][2][3][4][5] . In these application scenarios, the vibration and noise of axial flux motors are crucial performance evaluation indicators [6][7][8][9] . Furthermore, the vibration and noise of radial flux motors have also been extensively investigated.…”

Section: Introduction1mentioning

confidence: 99%

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Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations

Chen,

et al. 2023

Chin. J. Electr. Eng.

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The electromagnetic vibration noise in axial flux motors was meticulously examined. In this study, 24-slot/10-pole and 12-slot/10-pole axial flux motors were chosen as the subjects of research. The spatial characteristics of the axial electromagnetic force were derived analytically and confirmed via two-dimensional Fourier decomposition. The finite-element method was used to simulate the low-order axial modes of both motors. Furthermore, a modal experiment on the stator of a 24-slot/10-pole axial flux motor was conducted to validate the simulation's accuracy. By integrating the electromagnetic and structural models, a comprehensive multi-physical field model was developed to calculate the vibration noise of the axial flux motor. The precision of this model was subsequently corroborated with noise experiments. The findings from this study aim to offer insights into identifying the sources of vibration noise in axial flux motors.

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Section: Modal Testmentioning

confidence: 99%

Section: Introduction1mentioning

confidence: 99%

Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations

Chen,

et al. 2023

Chin. J. Electr. Eng.

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show abstract

“…In one study, a new permanent magnet linear synchronous motor structure using oriented silicon steel sheets as the moving core material instead of the traditional non-oriented silicon steel sheets has been proposed, which improves the electromagnetic thrust and overload capacity [6]. Moreover, the use of grain-oriented silicon steel in axial flux permanent magnet machines improves their torque and efficiency, highlighting the advantages of grain-oriented silicon steel in the application of yokeless stator axial flux permanent magnet (AFPM) machines [7]. Using three test motors made of conventional steel, high-silicon steel, and amorphous iron, the authors of [8] proved that magnetostriction has a significant effect on amorphous iron, but an almost negligible effect on high-silicon steel.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Magnetic Properties of Ultra-Thin Grain-Oriented Silicon Steel and Fe-Based Amorphous Alloys from Power Frequency to Intermediate Frequency

Ma,

Cheng,

Han

et al. 2024

Applied Sciences

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The magnetic properties of a 0.10 mm ultra-thin, grain-oriented (UTGO) silicon steel and an Fe-based amorphous (FBA) alloy under sinusoidal excitation were experimentally researched, and the magnetic field strength and iron loss of the two materials under different frequencies and magnetic densities were obtained. Based on the measured data, the magnetization and loss characteristics of the two materials were analyzed and compared. Furthermore, two Epstein square ring models of the same dimensions and different materials were designed, and the reliability of the models was verified. Then, the electromagnetic characteristics of the two Epstein square ring models at higher and lower frequencies were calculated using the finite element method, and the iron losses were obtained and compared. The results show that the FBA alloy has good application characteristics at low frequencies and low power, and the 0.10 mm UTGO silicon steel has good application characteristics at high frequencies and high power. This research provides important data, promoting the application of these two materials in new energy equipment.

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“…A new permanent magnet linear synchronous motor structure using oriented silicon steel sheet instead of the traditional non-oriented silicon steel sheet as the moving core material has been proposed, which improves the electromagnetic thrust and overload capacity [7]. The use of grain-oriented silicon steel in axial flux permanent magnet machines improves its torque and efficiency, and highlights the advantages of grain-oriented silicon steel in the application of yokeless stator axial flux permanent magnet (AFPM) machines [8]. By using three test motors, one made of conventional steel, high-silicon steel and amorphous iron [9], it is proved that magnetostriction has a significant effect on amorphous iron, but almost negligible effect on highsilicon steel.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Magnetic Properties of Ultra-thin Grain-oriented Silicon Steel and Fe-based Amorphous Alloy from Power Frequency to Intermediate Frequency

Ma,

Cheng,

Han

et al. 2024

Preprint

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The magnetic properties of 0.10 mm ultra-thin grain-oriented (UTGO) silicon steel and Fe-based amorphous (FBA) alloy under sinusoidal excitation were measured experimentally, and the magnetic field strength and iron loss of the two materials under different frequencies and magnetic densities were obtained. Based on the measured data, the magnetization and loss characteristics of the two materials were analyzed and compared. Furthermore, two Epstein square ring models of the same specification and different materials were designed, and the reliability of the models was verified. Then, the electromagnetic characteristics of the two Epstein square ring models at higher and lower frequencies were calculated by using the finite element method, and the iron loss was obtained and compared. The results show that the FBA alloy has good application characteristics at low frequency and low power, and the 0.10 mm UTGO silicon steel has good application characteristics at high frequency and high power. This research can provide important data basis to promote the application of these two materials in new energy equipment.

show abstract

Electromagnetic Analysis and Efficiency Improvement of Axial-Flux Permanent Magnet Motor With Yokeless Stator by Using Grain-Oriented Silicon Steel

Cited by 19 publications

References 8 publications

Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations

Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations

Analysis of the Magnetic Properties of Ultra-Thin Grain-Oriented Silicon Steel and Fe-Based Amorphous Alloys from Power Frequency to Intermediate Frequency

Analysis of the Magnetic Properties of Ultra-thin Grain-oriented Silicon Steel and Fe-based Amorphous Alloy from Power Frequency to Intermediate Frequency

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