Design and Prototyping of a Novel Line-Start Permanent Magnet Assisted Synchronous Reluctance Motor for Fan Application

Jamali-Fard, Ali; Mirsalim, Mojtaba

doi:10.1109/tec.2023.3308508

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…Every small region is separated by magnetic domain walls, and the spontaneous magnetization generated inside the magnetic material needs to meet the principle of minimum energy to ensure vector balance. The formation of magnetic domains weakens the demagnetization energy of the magnetic material [11].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Properties of M-Type Hexagonal Ferrite: Mechanical Applications

Ul Nissa,

Amir,

Noreen

et al. 2023

ejaset

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As the information era continues to advance at a rapid pace, M-type strontium ferrite and other magnetic materials are finding more and more traditional uses. Numerous industries rely on it as a permanent magnet material because of its inexpensive cost, ease of preparation, and outstanding overall performance in areas including electronics, national defense, and communication. In this paper, we investigate some the magnetoelectric coupling properties at room temperature by solid phase method and sol-gel method. The phase structure was determined using an X-ray diffractometer, and the samples were all single-phase polycrystalline with a spatial group of P63/mmc. Observing the surface morphology using field emission scanning electron microscopy, it was found that the composition distribution of the samples prepared by solid-phase method was uneven and there was a "scandium rich phase". The samples prepared by the sol gel method have uniform composition distribution, hexagonal grain shape, and grain size of about 3-5 μ M. The magnetic properties of the samples prepared by the sol gel method and the solid phase method were studied, respectively. The results showed that the phase transition occurred in the solid phase method at about 250K, and the hysteresis loop at room temperature did not show the magnetoelectric coupling behavior. The magnetic phase transition of the sample prepared by the sol gel method occurred near 330K. Combined with the research on the hysteresis loops of the temperature above and below this phase transition point, it shows that this phase transition corresponds to the change of the ferromagnetic to the conical magnetic structure. The similar relationship between magnetic capacitance and magnetization intensity with magnetic field indicates that this conical magnetic structure can induce ferroelectric polarization, which can be understood based on the inverse Dzyaloshinskii-Moriya model.

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Section: Introductionmentioning

confidence: 99%