Partitioned Stator- Flux Switching Machine Utilizing Different Magnet Grades

Al-Qarni, Ali; El-Refaie, Ayman

doi:10.1109/ecce.2019.8912533

Cited by 2 publications

(3 citation statements)

References 19 publications

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“…As a consequence, this paper aims to address foregoing PM material challenges and investigate the electromagnetic performance of blended magnet designs proposed for electric vehicles (ferrite with both Dy-NdFeB and Dy-free NdFeB) in the context of FM-MGs and MGMs as to extend the work in [59,60].…”

Section: Objective and Organization Of This Papermentioning

confidence: 99%

“…Additionally, a newly developed PM shape is introduced to sustain comparative electromagnetic performances to the non-blended magnet designs. The merit of using the (T-shape) is discussed in [60]. The third design is demonstrated in Figure 12c with ferrite and Dy-NdFeB, while the fourth design has a blend of ferrite and Dy-free NdFeB as shown in Figure 12d.…”

Section: Considered Designsmentioning

confidence: 99%

“…It is concluded that the proposed design can operate safely under the required specifications. Additionally, the merit of using a T-shape is realized by showing no demagnetization signs in the hybrid designs [60].…”

Section: Demagnetization Analysismentioning

confidence: 99%

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Magnetic Gears and Magnetically Geared Machines with Reduced Rare-Earth Elements for Vehicle Applications

Al-Qarni

El-Refaie

2021

WEVJ

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This paper covers a new emerging class of electrical machines, namely, Magnetic Gears (MGs) and Magnetically Geared Machines (MGMs). This particular kind of gears/machines is capable of either scaling up or down the revolutions-per-minute to meet various load profiles as in the case of mechanical gearboxes, but with physical isolation between the rotating components. This physical isolation between the rotational components leads to several advantages in favor of MGs and MGMs over mechanical gearboxes. Although MGs and MGMs can potentially provide a solution for some of the practical issues of mechanical gears, MGs and MGMs have two major challenges that researchers have been trying to address. Those challenges are the high usage of rare-earth Permanent Magnet (PM) materials and the relatively complex mechanical structure of MGs and MGMs, both of which are a consequence of the multi-airgap design. This paper presents designs that reduce the PM rare-earth content for Electric Vehicles (EVs). Additionally, the paper will ensure having practical designs that do not run the risk of permanent demagnetization. The paper will also discuss some new designs to simplify the mechanical structure.

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Section: Objective and Organization Of This Papermentioning

confidence: 99%

Section: Considered Designsmentioning

confidence: 99%