ヒステリシス特性を考慮した変圧器用構造材およびシールド材の鉄損評価

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  • Iron Loss Estimation of Soft Magnetic Materials for Power Transformers Considering Hysteretic Properties
  • ヒステリシス トクセイ オ コウリョ シタ ヘンアツ キヨウ コウゾウザイ オヨビ シールドザイ ノ テッソン ヒョウカ

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<p>This paper investigates an efficient iron loss calculation method for soft magnetic materials of power transformers. To accurately estimate iron losses in the materials such as structural steels and magnetic shielding, the magnetic field analysis taking account of the nonlinear magnetic properties is considered to be effective. In this paper, quasi-DC magnetic properties of the soft magnetic materials are measured and the iron losses are calculated by using a 3D finite element method. Furthermore, the effect of considering hysteretic properties on the accuracy of the iron loss calculation is discussed based on a theoretical representation of eddy current loss in a conductive rectangular plate.</p>

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