Application of fine-grained doubly oriented electrical steel to IPM synchronous motor

Tomida, Toshiro; Sano, Naoyuki; Hinotani, Shigeharu; Fujiwara, Koji; Kotera, Hidetoshi; Nishiyama, Noriyoshi; Ikkai, Y.

doi:10.1109/tmag.2005.854867

Cited by 17 publications

(2 citation statements)

References 7 publications

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“…The results of tests on 16 machines show a reduction of 25 to 30% in iron losses, as well as a 50% reduction in the value of the current for a given power, compared to machines with NO plates, with the same geometric dimensions. The technique of segmenting GOES in sectors is also presented in [23] with a radial permanent magnet (PM) motor. Each "T" sector has a tooth and a yoke portion, where the direction of easy magnetisation of the GOES sheet is parallel with the yoke field (Fig.…”

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confidence: 99%

Analysis of Flux Density and Iron Loss Distributions in Segmented Magnetic Circuits Made With Mixed Electrical Steel Grades

et al. 2022

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This paper presents the potential contribution of segmented stator magnetic circuits of rotating permanent magnets electrical machines with concentric winding. Two magnetic materials are mixed, FeSi Non-Oriented Electrical Steel (NOES) and FeSi Grain Oriented Electrical Steel (GOES). The choice of using GOES is based on the high performance it offers in terms of permeability and iron losses compared to conventional NOES, particularly when GOES is magnetised in the Rolling Direction (RD). The goal is to analyse the contribution of the mixed magnetic circuit on the losses and electromagnetic torque, but also the drawbacks due to the cut process and to the assembly. The behaviour of the magnetic field at the junction between the segments is studied by comparing different geometrical connection shapes and compared to a reference magnetic circuit fully made with NOES sheets. This comparison is experimentally made with a model representative of the existing phenomena in an electrical machine. In addition, numerical calculations using finite elements software are carried out, by considering both the magnetic anisotropy and the saturation of the GOES.

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confidence: 99%

Analysis of Flux Density and Iron Loss Distributions in Segmented Magnetic Circuits Made With Mixed Electrical Steel Grades

et al. 2022

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“…For example, the efficiency of a transformer core is directly influenced by its coercivity, which in turn is a function of the polycrystalline grain size [2][3][4][5][6]. This interaction is also vital to the control of flux lines in micromagnetic devices [7,8]. The emergence of a ferromagnetic or ferroelectric order can also induce a strain in the lattice.…”

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Phase-field crystal approach for modeling the role of microstructure in multiferroic composite materials

et al. 2015

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Performance Enhancement of the PMa-SynRM for Electric Bicycle Traction Motor by Grain-Oriented Electrical Steel Applied Teeth

Son

Kim²,

Lim³

2022

J. Electr. Eng. Technol.

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Application of fine-grained doubly oriented electrical steel to IPM synchronous motor

Cited by 17 publications

References 7 publications

Analysis of Flux Density and Iron Loss Distributions in Segmented Magnetic Circuits Made With Mixed Electrical Steel Grades

Analysis of Flux Density and Iron Loss Distributions in Segmented Magnetic Circuits Made With Mixed Electrical Steel Grades

Phase-field crystal approach for modeling the role of microstructure in multiferroic composite materials

Performance Enhancement of the PMa-SynRM for Electric Bicycle Traction Motor by Grain-Oriented Electrical Steel Applied Teeth

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