Examination of Applying Amorphous Rolled Core to Permanent Magnet Synchronous Motors

Amano, Hisao; Enomoto, Yûji; Ito, M.; Itabashi, Hiromitsu; Tanigawa, S.; Masaki, Ryoso

doi:10.1541/ieejias.130.632

Cited by 14 publications

(9 citation statements)

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“…In 2010, NEC Tokin (not Tokin) released a nanocrystal soft magnetic material called NANOMET (previously known as “SENNTIX III”). This material has iron loss equivalent to that of iron‐based amorphous alloy (hereinafter referred to as “amorphous”), and is characterized as having higher saturation magnetic flux density than “amorphous”. Moreover, it is thought that low iron loss and high torque density will be achievable in a well‐balanced manner by using the NANOMET in motors.…”

Section: Background and Objectivementioning

confidence: 99%

Research on motor with nanocrystalline soft magnetic alloy stator cores

Nonaka

Zeze

Makino

et al. 2020

Electrical Engineering Japan

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Section: Background and Objectivementioning

confidence: 99%

Research on motor with nanocrystalline soft magnetic alloy stator cores

Nonaka

Zeze

Makino

et al. 2020

Electrical Engineering Japan

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“…The fixing elements used in the splitting are used without modification in the compressing and adhesion work mentioned in item (2). Figure 4 depicts the work of bonding the NANOMET sheets.…”

Section: Fabrication Of Stator Corementioning

confidence: 99%

“…Due to its low coercivity (Hc) and material thinness (25 µm), it has iron loss as low as that of "amorphous". 2 Also, its saturation flux density (Bs) is higher than that of "amorphous" and is about the same as 35A360. As such, we expect that a NANOMET stator core will achieve high torque density and low iron loss that are substantially equal to those of a conventional electromagnetic steel plate.…”

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confidence: 99%

Research on motor with nanocrystalline soft magnetic alloy stator cores

Nonaka

Zeze

Makino

et al. 2019

J. eng.

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We built a prototype motor with NANOMET stator cores. NANOMET is one of the several nanocrystalline soft magnetic alloys [1]. The motor iron loss and other characteristics of NANOMET were compared with 35A360, which is one of the widely used conventional electromagnetic steel sheets, and the effectiveness of the new material is shown. This paper describes the methods to build NANOMET stator cores, and presents the evaluation results of the prototype motor. K E Y W O R D Shigh flux density, high torque, IPM motor, low iron loss, nanocrystalline soft magnetic alloy, NANOMET BACKGROUND AND OBJECTIVELow iron loss materials are desired as means for improving the efficiency of EV motors, industrial motors, robot motors, and the like. In 2010, NEC Tokin (not Tokin) released a nanocrystal soft magnetic material called NANOMET (previously known as "SENNTIX III"). This material has iron loss equivalent to that of iron-based amorphous alloy (hereinafter referred to as "amorphous"), 1,2 and is characterized as having higher saturation magnetic flux density than "amorphous". Moreover, it is thought that low iron loss and high torque density will be achievable in a well-balanced manner by using the NANOMET in motors.Reference (3) is a study in which NANOMET was actually used in a motor. In this prior study, an un-heat-treated quenched ribbon of NANOMET was processed and, thereafter, heat treated. In this study, we conceived of a novel approach in which we attempted to fabricate a prototype of a stator core using heat-treated NANOMET ribbon, which is difficult to handle.As such, in this paper, we will first discuss the machining and fabrication methods of the stator core. Then, we will confirm the iron loss characteristics of the prototype motor that comprises the core, and demonstrate that NANOMET is useful for reducing the iron loss in motors.Electr Eng Jpn. 2020;211:55-62.

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“…So it is difficult to process it into complicated core shapes for motor applications because of the hardness of the amorphous alloy. An axial‐flux PMSM, which used rolled amorphous cores in the stator, was proposed as a solution for the amorphous alloy motor applications . Figure shows the structure of the proposed axial‐gap PMSM with the amorphous rolled stator core, where ferrite PMs are mounted on the rotor surface.…”

Section: Axial‐gap Pmsms With Ferrite Magnetsmentioning

confidence: 99%

Recent technical trends in permanent magnet synchronous motors

Kano

Morimoto

Asano

et al. 2016

IEEJ Transactions Elec Engng

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This paper presents an overview of the recent technical trends in permanent magnet synchronous motors (PMSMs), especially the rare earth (RE)-less PMSMs that have been developed in Japan. The RE-less PMSMs, along with PMSMs with reduced RE permanent magnets (PMs), PM-assisted synchronous reluctance motors (PMASynRM) with ferrite PMs, spoke-type interior PMSMs (IPMSMs) with ferrite PMs, and axial-gap PMSMs with ferrite PMs, are reviewed.

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Examination of Applying Amorphous Rolled Core to Permanent Magnet Synchronous Motors

Cited by 14 publications

References 0 publications

Research on motor with nanocrystalline soft magnetic alloy stator cores

Research on motor with nanocrystalline soft magnetic alloy stator cores

Research on motor with nanocrystalline soft magnetic alloy stator cores

Recent technical trends in permanent magnet synchronous motors

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