Minimization of Cogging Torque in Axial Field Flux Switching Machine Using Arc Shaped Triangular Magnets

Baig, Mirza Aakif; Ikram, Junaid; Iftikhar, Adnan; Bukhari, Syed Sabir Hussain; Khan, Nasrullah; Ro, Jong‐Suk

doi:10.1109/access.2020.3044922

Cited by 20 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A 12/13 AFFSPM with an external dual rotor and middle dual-stator that has a higher torque density and a lower cogging torque is then suggested [12]. Additionally, a structure with an external dual rotor, an internal dual-stator, and an arc-shaped magnet reduces the cogging torque by about 61.8% [13].…”

Section: Introductionmentioning

confidence: 99%

Design and comparison of dual‐stator axial‐field flux‐switching permanent magnet motors for electric vehicle application

Farrokh

Vahedi

Torkaman

et al. 2023

IET Electrical Syst in Trans

View full text Add to dashboard Cite

In this article, three dual-stator axial field flux-switching permanent magnet (DS-AFFSPM) topologies are selected, designed, and analysed in order to determine the most effective structure electric vehicle (EV) application based on torque density, power density, and efficiency. Accordingly, the introduced topologies are thoroughly compared in the same condition. The results show that, the high-power density, high-torque density, and high-efficiency, of the internal single-teeth rotor DS-AFFSPM topology is a suitable candidate for EV application because it has the lowest torque ripple.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and comparison of dual‐stator axial‐field flux‐switching permanent magnet motors for electric vehicle application

Farrokh

Vahedi

Torkaman

et al. 2023

IET Electrical Syst in Trans

View full text Add to dashboard Cite

show abstract

“…In this paper, the combination of pole arc coefficient was studied. In the study [3], the axial flux permanent magnet machine (AFPMM) was proposed to design the slotted axial field flux switching for reducing the torque ripple. This paper also used the FEM to design, analyze and create the new model of machines.…”

Section: Introductionmentioning

confidence: 99%

Improving Performances of Interior Permanent Magnet Synchronous Motors by Using Different Rotor Angles

Duc¹,

Minh²,

Thanh³

et al. 2023

JESA

View full text Add to dashboard Cite

The torque ripple, vibration and noise generated in interior permanent magnet synchronous machines (IPMSMs) due to the cogging torque. This will directly influence on the performance of the motors in general and IMMSMs in particular. Hence, the computation and investigation of the cogging torque play an important role for manufactures and designers to design the electric motors. In this paper, the analytical model of skew slot stators (SSSs), one-direction step-skew rotor (1D-SSR) and two-direction step skew rotor (2D-SSR) is presented to reduce the cogging torque of the IPMSMs. Then, the FEM is proposed to analyze and simulate the magnetic flux density, back electromotive force (EMF) and electromagnetic torque. However, in order to minimize the total harmonic distortions of the back-EMF waveforms due to the use of skew step rotors, a combination of the two-direction segment rotor structure with an optimal skewing angle of the 2D-SSR will be presented. A practical motor is applied to validate the developed method. The obtained results from the simulatated method are finally compared with the measured method.

show abstract

“…In the world of science, research, and education, the CT reduction method has been investigated and proposed, covering the dummy slot method in the stator core [4], dummy teeth in the stator core [5,6], magnet surface [7,8] or magnet edge slotting [9], magnet surface slotting [10], magnetic pole arc optimization [11][12][13], skewing magnet [14] or stator [15], magnet shifting [16,17] fractional slot number [15,18] and many more. Each technique developed for CT reduction retains its preferences and disadvantages.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Magnet Structure on the Cogging Torque Reduction in a Permanent Magnet Generator

Nur¹,

Suherman²,

Herlina³

2021

Journal of Southwest Jiaotong University

View full text Add to dashboard Cite

The cogging torque would still be a constant part of permanent magnet-electric machines. This happens because of the construction in which permanent magnets are attached to the rotor, and a slot is present at the core of the stator. The contact between the two, related to the distance between the magnetic surface and the stator slot, makes it challenging to eliminate the cogging torque. This study aims to maximize cogging torque by reducing it with a new method. The proposed method is a mixture of two techniques that indicate significant promise. This invention mixes two techniques to improve the final results. The first process is called magnetic edge shaping, and the second technique is called a dummy slot on the stator. A fractional slot number (FSN) type with 24 slots and 18 poles is the permanent magnet machine used for this investigation. This work is assisted by software version 4.2 of the Finite Element Magnetic Method (FEMM), which will simulate the original and the proposed design. The proposed method proved to be effective in minimizing the peak value of the cogging torque, as shown by the simulation results of 98% of the initial design. Combining the two techniques may reduce the tangential value of the flux so that the flux leading to the slot is lower than the initial design.

show abstract

Minimization of Cogging Torque in Axial Field Flux Switching Machine Using Arc Shaped Triangular Magnets

Cited by 20 publications

References 22 publications

Design and comparison of dual‐stator axial‐field flux‐switching permanent magnet motors for electric vehicle application

Design and comparison of dual‐stator axial‐field flux‐switching permanent magnet motors for electric vehicle application

Improving Performances of Interior Permanent Magnet Synchronous Motors by Using Different Rotor Angles

The Effect of Magnet Structure on the Cogging Torque Reduction in a Permanent Magnet Generator

Contact Info

Product

Resources

About