Performance Analysis of Axial-Flux Induction Motor with Skewed Rotor

Arabul, Fatma Keskin; Şenol, İbrahim; Oner, Y.

doi:10.3390/en13194991

Cited by 16 publications

(5 citation statements)

References 35 publications

(41 reference statements)

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“…However, compared with the straight slot of the rotor, the skewed slot of the rotor can improve the sinusoidal degree of back EMF waveforms. The detailed theoretical research of skewed-slot-type rotor can be seen in References [22][23][24]. In this section, the discrepancy between the straight-slot-type rotor and skewedslot-type rotor is discussed through simulation and harmonics analysis.…”

Section: Back Emf Waveform Analysis Of Machine With Straight Slot and Skewed Slotmentioning

confidence: 99%

“…For the straight-slot-type rotor of the FSPM machine and VFMPM machine, if we divide the mechanical rotating degree  into N equal parts, and simultaneously calculate the straight-slot-type back EMF waveform with different mechanical rotating The detailed theoretical research of skewed-slot-type rotor can be seen in References [22][23][24]. In this section, the discrepancy between the straight-slot-type rotor and skewed-slot-type rotor is discussed through simulation and harmonics analysis.…”

Section: Back Emf Waveform Analysis Of Machine With Straight Slot and Skewed Slotmentioning

confidence: 99%

See 1 more Smart Citation

Back EMF Waveform Comparison and Analysis of Two Kinds of Electrical Machines

Cui

Faizan

Chen

2021

WEVJ

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In this study, the back electromotive force (EMF) waveforms of a flux switching permanent magnet (FSPM) machine and variable flux memory permanent magnet (VFMPM) machine with same main dimension were researched. Firstly, the simulation result showed that the maximum amplitude of phase back EMF waveform of FSPM machine was 245% larger than that of the VFMPM machine, and this was verified by the experimental result (243%). Secondly, the phase back EMF harmonics of the FSPM machine and VFMPM machine were compared, including the enhance flux condition and weaken flux condition of VFMPM machine. At last, the mutual demagnetization effect, which led to the difference amplitudes of maximum back EMF waveform between FSPM machine and VFMPM machine was analyzed. The comparison and analysis of the back EMF waveform will provide some qualitative advice for the future application research of the FSPM machine and VFMPM machine, such as application selection, optimization control method and so on.

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Section: Back Emf Waveform Analysis Of Machine With Straight Slot and Skewed Slotmentioning

confidence: 99%

Section: Back Emf Waveform Analysis Of Machine With Straight Slot and Skewed Slotmentioning

confidence: 99%

Back EMF Waveform Comparison and Analysis of Two Kinds of Electrical Machines

Cui

Faizan

Chen

2021

WEVJ

View full text Add to dashboard Cite

show abstract

“…In Equation ( 9), torque ripple (τ ripple ) in percent is presented which is defined as the ratio of difference between maximum (τ max ) and minimum torque (τ min ) values to average torque (τ avg ) (Keskin Arabul et al, 2020).…”

Section: European Journal Of Science Andmentioning

confidence: 99%

Elektrikli Araçlar için Aynı Stator Gövdesine Sahip Asenkron Motor ile Gömülü Sürekli Mıknatıslı Senkron Motorun Karşılaştırılması ve Performans Analizi

KARTAL

Arabul

2022

EJOSAT

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Electric motors are widely used since they are more efficient and environmentally friendly compared to internal combustion engines. Studies in the fields of electric motors and battery management systems etc. used in electric vehicles are increasing day by day. In this study, electric motor design and performance analyzes to be used in electric vehicles are made. Accordingly, firstly, an induction motor design is carried out by considering the design parameters of the induction motor used in Tesla Model S. Then, by taking the stator core of this induction motor as a reference, an interior permanent magnet synchronous motor design, which is very common and advantageous in electric vehicles, is designed. By considering the air gap, magnet angle, magnet thickness, magnet width and magnet type parameters of this motor, the results of analyzes are evaluated in terms of efficiency and torque ripple. As a result of analyzes, efficiency of the final design has been improved by 4.78% compared to the reference induction motor. In addition, the torque ripple of the final design has been improved by 55.17% compared to the initial design of the interior permanent magnet synchronous motor.

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“…Recently, axial flux permanent magnet (AFPM) electrical machines have represented the most potential class of energy transforming appliances, which provide the best power/weight ratio and excellent efficiency for different applications [ 1 , 2 , 3 , 4 ]. The absence of rotor winding due to strong NeFe composite permanent magnets (PMs) and the optimal use of stator–rotor surface enables high torque at low velocities, good cooling possibilities, and high energy efficiency [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

The Effects of Cogging Torque Reduction in Axial Flux Machines

et al. 2021

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An axial flux permanent magnet single-rotor generator has good potential in various applications that require high efficiency, prolonged service life, as well as low mass and dimensions. However, the effect of cogging torque diminishes generator efficiency and flexibility of functionality. The effect of cogging torque arises because of a small air gap between the stator teeth and the rotor. In this article, we suggest that shifting the opposite teeth of the stator to the optimal angle can reduce the effect of cogging torque. A special axial flux permanent magnet generator is developed to choose the optimal disposition of the permanent magnet and stator teeth in the frame. The impact of the optimal angle on the cogging torque, output power, and generator efficiency is investigated. This analytical study with experimental testing proves that the optimal angle between opposite teeth can significantly decrease cogging torque and improve output power and efficiency. The results show that cogging torque decreases significantly (4–5 times) at an optimal angle of 7.5° as compared with that of other angles, although magnetic flux and output power decline slightly but efficiency increases.

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Performance Analysis of Axial-Flux Induction Motor with Skewed Rotor

Cited by 16 publications

References 35 publications

Back EMF Waveform Comparison and Analysis of Two Kinds of Electrical Machines

Back EMF Waveform Comparison and Analysis of Two Kinds of Electrical Machines

Elektrikli Araçlar için Aynı Stator Gövdesine Sahip Asenkron Motor ile Gömülü Sürekli Mıknatıslı Senkron Motorun Karşılaştırılması ve Performans Analizi

The Effects of Cogging Torque Reduction in Axial Flux Machines

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