Core Loss Reduction of an Interior Permanent-Magnet Synchronous Motor Using Amorphous Stator Core

Okamoto, S.; Denis, Nicolas; Kato, Yoshiyuki; Ieki, Masaharu; Fujisaki, Keisuke

doi:10.1109/tia.2016.2532279

Cited by 78 publications

(22 citation statements)

References 18 publications

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“…See Refs. 2,12,14,15) for the details of design and fabrication process of rotor and stator cores. Figure 3 shows the schematic of the PMSM and its control system under no-load condition.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…The losses in the driving electric motors mainly consist of mechanical, copper, and core losses (iron losses). Recently, in order to reduce core losses of the motors, the motors based on core with amorphous magnetic materials (AMM) [1][2][3][4][5][6][7][8][9][10][11][12] and nanocrystalline magnetic materials (NMM) [13][14][15] have been developed and examined. NMM and AMM exhibit lower iron loss 16) than nonoriented (NO) silicon steel sheets.…”

Section: Introductionmentioning

confidence: 99%

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Core Losses of a Nanocrystalline Motor under Inverter and Sinusoidal Excitations

2019

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In this paper, we focus on an evaluation of core losses in permanent magnet synchronous motors (PMSMs) made of nanocrystalline magnetic materials under inverter and sinusoidal excitations. To discuss the core loss properties of a nanocrystalline motor, comparison with PMSMs made of amorphous magnetic materials and non-oriented (NO) silicon steel sheets is also performed. Under sinusoidal excitation, the core losses of the nanocrystalline motor were about 0.7 and 0.5 times smaller than those of the amorphous and NO motors, respectively. In particular, we found that the nanocrystalline motor reduced the core loss on the basis of time harmonic components in comparison with not only the NO motor but also the amorphous motor. On the basis of our results, the nanocrystalline motor is expected to be suitable for use in high-speed and high-frequency regions.

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“…See Refs. 2,12,14,15) for the details of design and fabrication process of rotor and stator cores. Figure 3 shows the schematic of the PMSM and its control system under no-load condition.…”

Section: Experimental Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Core Losses of a Nanocrystalline Motor under Inverter and Sinusoidal Excitations

2019

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“…Laser cutting, however, has been shown to overheat and deteriorate the edges of Fe-rich amorphous materials (68). Grinding, EDM (69,70), or waterjet cutting (71) have also been used to machine already-assembled ribbons into the final core geometry, speeding up the manufacturing process.…”

Section: Amorphous and Nanocrystalline Alloysmentioning

confidence: 99%

Soft magnetic materials for a sustainable and electrified world

Silveyra

Ferrara

Huber

et al. 2018

Science

546

122

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Soft magnetic materials are key to the efficient operation of the next generation of power electronics and electrical machines (motors and generators). Many new materials have been introduced since Michael Faraday’s discovery of magnetic induction, when iron was the only option. However, as wide bandgap semiconductor devices become more common in both power electronics and motor controllers, there is an urgent need to further improve soft magnetic materials. These improvements will be necessary to realize the full potential in efficiency, size, weight, and power of high-frequency power electronics and high–rotational speed electrical machines. Here we provide an introduction to the field of soft magnetic materials and their implementation in power electronics and electrical machines. Additionally, we review the most promising choices available today and describe emerging approaches to create even better soft magnetic materials.

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“…However, as a very brittle material, its mechanical characteristics highly depend on the manufacturing process. To make full use of this kind of material in the motor design, special attention should be paid to the design of new motor topologies and manufacturing process [49,50]. Thus, a good motor design should be good in terms of both output performances and manufacturing abilities.…”

Section: Manufacturing Process Designmentioning

confidence: 99%

A Review of Design Optimization Methods for Electrical Machines

et al. 2017

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Electrical machines are the hearts of many appliances, industrial equipment and systems. In the context of global sustainability, they must fulfill various requirements, not only physically and technologically but also environmentally. Therefore, their design optimization process becomes more and more complex as more engineering disciplines/domains and constraints are involved, such as electromagnetics, structural mechanics and heat transfer. This paper aims to present a review of the design optimization methods for electrical machines, including design analysis methods and models, optimization models, algorithms and methods/strategies. Several efficient optimization methods/strategies are highlighted with comments, including surrogate-model based and multi-level optimization methods. In addition, two promising and challenging topics in both academic and industrial communities are discussed, and two novel optimization methods are introduced for advanced design optimization of electrical machines. First, a system-level design optimization method is introduced for the development of advanced electric drive systems. Second, a robust design optimization method based on the design for six-sigma technique is introduced for high-quality manufacturing of electrical machines in production. Meanwhile, a proposal is presented for the development of a robust design optimization service based on industrial big data and cloud computing services. Finally, five future directions are proposed, including smart design optimization method for future intelligent design and production of electrical machines.

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Core Loss Reduction of an Interior Permanent-Magnet Synchronous Motor Using Amorphous Stator Core

Cited by 78 publications

References 18 publications

Core Losses of a Nanocrystalline Motor under Inverter and Sinusoidal Excitations

Core Losses of a Nanocrystalline Motor under Inverter and Sinusoidal Excitations

Soft magnetic materials for a sustainable and electrified world

A Review of Design Optimization Methods for Electrical Machines

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