High-torque ferrite synchronous reluctance machine design optimization

Knebl, Ladislav; Bárta, Jan; Kurfürst, Jiří; Ondrůšek, Čestmír

doi:10.1109/me49197.2020.9286461

Cited by 1 publication

(2 citation statements)

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“…2 (a), which is defined as . Based on the constant coordinate transformation of magnetic potential, the d-axis flux linkage and q-axis flux linkage in APMA-SynRM are expressed as ( 4) and (5).…”

Section: B Magnet-axis-shifting (Mas) Effectmentioning

confidence: 99%

“…Compared with the machines without rare earth magnets, such as switched reluctance machines and synchronous reluctance machines, the torque performance of the PMA-SynRM which uses ferrite permanent magnet materials has greatly improved [5]. The rotor of PMA-SynRM usually adopts multi-layer flux barriers to obtain a high salient ratio and the position of the permanent magnets can affect torque performance [6].…”

Section: Introductionmentioning

confidence: 99%

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Novel PM-Assisted Synchronous Reluctance Machines Using Asymmetrical Rotor Configuration

Xie

Shao

et al. 2022

IEEE Access

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This paper proposes a novel asymmetrical permanent magnet assisted synchronous reluctance machine (APMA-SynRM) with high cost performance, namely it has the advantages of high torque performance and low cost. This machine has an asymmetrical rotor configuration featured by low-cost ferrite and expensive NdFeB, and two kinds of material are placed asymmetrically on both sides of the "U"-shaped barriers, which causes the magnet-axis-shift (MAS) effect. Consequently, the proposed APMA-SynRM improves the utilization of the reluctance torque and permanent magnet torque. The influences of permanent magnet volume ratio and hybrid permanent magnet on torque performance are further investigated, and the optimal topologies are designed through a multi-objective genetic algorithm. Moreover, the machine performance of APMA-SynRM is analyzed and compared with that of the conventional permanent magnet assisted synchronous reluctance machine (PMA-SynRM), which confirms that the proposed APMA-SynRM can reduce the cost of permanent magnets but still achieve similar torque and wider constant power speed range performance.

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Section: B Magnet-axis-shifting (Mas) Effectmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%