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設計技術シリーズ

ベクトル磁気特性技術と設計法モータの低損失・高効率化設計法

著者: 榎園正人氏(大分大学)
価格: 3,400円(本体)+税
判型: A5
ページ数: 262 ページ
ISBN: 978-4-904774-36-6
発売日: 2015/4/22

【著者紹介】

榎園 正人(えのきぞの まさと)
1949年2月生まれ
1978年九州大学大学院工学研究科電気工学専攻博士課程修了。工学博士。「高シリコン系電気鉄板に関する研究」。1980年大分大学工学部赴任、助手、助教授を経て1995年工学部教授。この間1987年9月~1988年12月、2005年4月~9月にドイツ、アレクサンダー・フォン・フンボルト招聘研究員として国立物理工学総合研究所(PTB)に滞在。日本AEM学会会長(2007~2011年)、電気学会電力用磁性材料評価活用技術調査専門委員会委員長(2007~20013年)。IEEE主催CEFC2012のGeneral Chairman。電気機器の低損失・高効率化技術の研究に従事。2008年1月~2012年12月JST地域結集研究開発事業「次世代電磁力機器開発技術の構築」プロジェクト研究代表。2014年 大分大学 名誉教授、ベクトル磁気特性研究所設立。

【目次】

まえがき

第1章 低損失・高効率モータと社会

  1. 1.次世代電気機器と背景
  2. 2.IEC効率コード
  3. 3.トップランナー方式
  4. 4.低炭素化社会に向けて

第2章 従来技術の問題点・限界・課題

  1. 1.磁性材料の磁気特性測定法の問題点
    1. 1-1 電磁鋼板の発達と計測法
    2. 1-2 磁性材料の測定条件
  2. 2.磁気特性測定法の分類
    1. 2-1 標準測定技術(IEC並びにJIS規格試験法)
    2. 2-2 評価測定技術(Hコイル法)
    3. 2-3 活用測定技術(ベクトル測定法)
  3. 3.スカラー磁気特性技術の限界
  4. 4.ビルディングファクターと磁気特性の劣化
  5. 5.電気機器の損失増加要因

第3章 ベクトル磁気特性測定

  1. 1.ベクトル磁気特性測定法
    1. 1-1 一次元測定法と二次元測定法
    2. 1-2 ベクトル磁気特性測定法
  2. 2.ベクトル磁気特性の測定条件(位相制御)
  3. 3.二次元ベクトル磁気特性測定
  4. 4.ベクトル磁気特性の特徴
    1. 4-1 交番磁束条件下のベクトル磁気特性
    2. 4-2 回転磁束条件下のベクトル磁気特性
  5. 5.ベクトル磁気特性下の磁気損失特性

第4章 実機のベクトル磁気特性分布

  1. 1.局所ベクトル磁気特性分布の測定法
  2. 2.変圧器鉄心中のベクトル磁気特性分布
    1. 2-1 単相モデル鉄心
    2. 2-2 三相モデル鉄心
    3. 2-3 三相三脚変圧器鉄心
    4. 2-4 方向性電磁鋼板
  3. 3.三相誘導モータ鉄心中のベクトル磁気特性分布
    1. 3-1 BベクトルとHベクトルの分布
    2. 3-2 最大磁束密度分布と最大磁界強度分布
    3. 3-3 鉄心材料の圧延磁気異方性の影響
    4. 3-4 積層鉄心溶接部の影響
    5. 3-5 鉄損分布
    6. 3-6 回転磁束鉄損の分布
    7. 3-7 高調波成分のベクトル磁気特性
  4. 4.三相誘導モータ鉄心のPWMインバータ励磁下のベクトル磁気特性分布
    1. 4-1 PWMインバータ励磁
    2. 4-2 PWMインバータ励磁下の磁気特性
    3. 4-3 PWMインバータ励磁下のベクトル磁気特性分布

第5章 応力ベクトル磁気特性

  1. 1.磁気特性に及ぼす応力の影響
    1. 1-1 応力下の交流ヒステリシスループ
    2. 1-2 鉄損に及ぼす応力の影響
  2. 2.モータ鉄心の残留応力分布
    1. 2-1 残留応力の測定原理
    2. 2-2 残留応力評価方法
      1. 2-2-1 測定試料
      2. 2-2-2 測定方法
      3. 2-2-3 応力評価法
    3. 2-3 モータ鉄心の局所残留応力分布
    4. 2-4 残留応力の分布評価
      1. 2-4-1 応力分布
      2. 2-4-2 主応力の評価
  3. 3.応力ベクトル磁気特性
    1. 3-1 二軸応力下ベクトル磁気特性測定システム
    2. 3-2 応力印加時のベクトル磁気特性評価
      1. 3-2-1 応力ベクトル磁気特性測定評価方法
      2. 3-2-2 従来の評価測定の問題点
    3. 3-3 交番磁束条件下の二軸応力下におけるベクトル磁気特性
    4. 3-4 回転磁束条件下の二軸応力下におけるベクトル磁気特性
  4. 4.モータ鉄心中の応力ベクトル磁気特性と鉄損

第6章 ベクトル磁気特性解析

  1. 1.磁気抵抗率テンソル
  2. 2.定常積分型ベクトルヒステリシスE&Sモデルによるベクトル磁気特性解析
    1. 2-1 定常積分型E&Sモデル
    2. 2-2 積分型E&Sモデルによる磁気特性解析基礎方程式
  3. 3.定常ベクトル磁気特性解析
    1. 3-1 電磁鋼板モデルのベクトル磁気特性解析
    2. 3-2 単相鉄心モデルのベクトル磁気特性解析
    3. 3-3 三相鉄心モデルのベクトル磁気特性解析
    4. 3-4 三相変圧器の接合方式の違いによる検討
    5. 3-5 誘導モータ鉄心の低損失化の検討
  4. 4.ダイナミック積分型E&Sモデルによるベクトル磁気特性解析
    1. 4-1 定常積分型E&Sモデルの意味
    2. 4-2 ダイナミック積分型E&Sモデル
    3. 4-3 ダイナミック積分型E&Sモデルのための係数決定法
      1. 4-3-1 フーリエ変換を利用した余弦波成分および正弦波成分への分解方法
      2. 4-3-2 磁束密度波形および磁界強度波形
      3. 4-3-3 磁気抵抗係数および磁気ヒステリシス係数
      4. 4-3-4 係数の位相補正
      5. 4-3-5 回転座標変換による任意の磁化容易軸方向の考慮
    4. 4-4 ダイナミック積分型E&Sモデルによる磁気特性解析基礎方程式
    5. 4-5 ダイナミックベクトル磁気特性解析
      1. 4-5-1 定常型とダイナミックス型磁気特性解析結果の比較
      2. 4-5-2 測定結果との比較
  5. 5.ダイナミックベクトル磁気特性解析による解析結果
    1. 5-1 三相変圧器
    2. 5-2 永久磁石モータ
    3. 5-3 誘導モータ

第7章 ベクトル磁気特性活用技術

  1. 1.低損失・高効率化に向けて
  2. 2.磁性材料活用技術
  3. 3.設計・開発ツール
  4. 4.設計・製造技術
  5. 5.低損失・高効率化支援技術
    1. 5-1 局所ベクトル磁気特性分布測定技術
    2. 5-2 鉄損分布可視化技術
    3. 5-3 製造支援装置
  6. 6.ベクトル磁気特性制御技術

あとがき

索引

【参考文献】

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  56. 大戸基道,堀部豊洋,下地広泰,榎園正人,「二次元磁気特性を用いたリニアモータの鉄損シミュレーション」,日本AEM学会誌,Vol. 13,No. 4,pp. 328-333,2005.
  57. M. Enokizono, H. Shimoji, “Vector Magneto-hysteretic Engineering Model”, Journal of Materials Proceeding Technology, Elsevier, Vol. 161, pp. 136-140, 2005.
  58. M. Enokizono, H. Shimoji, “Vector Magneto-hysteretic Engineering Model”, Journal of Materials Proceeding Technology, Elsevier, Vol. 161, pp. 218-223, 2005.
  59. S. Urata, H. Shimoji, T. Todaka, M. Enokizono, “Measurement of Two-dimensional Vector Magnetic Properties on Frequency Dependence of Electrical Steel Sheet, International Journal of Applied Electromagnetics and Mechanics, Vol. 20, Nos. 3-4, pp. 155-162, IOS-Press, 2004.
  60. H. Shimoji, M. Enokizono, “E&S2 Model for Vector Magnetic Hysteresis Property”,  Journal of Magnetism and Magnetic Materials, Vol. 290-292, pp. 39-42, 2003.
  61. 61)M. Enokizono, H. Matsuo, “A Measurement System for Two-dimensional DC-Biased Properties of Magnetic Materials”, Journal of Magnetism and Magnetic Materials, Vol. 254-255, pp. 39-42, 2003.
  62. 62)H. Shimoji, M. Enokizono, T. Todaka, ”A New Modeling of the Vector Magnetic Property”, IEEE Transactions on Magnetics, Vol. 38, No. 2, pp. 861-864, 2002.
  63. 63)M. Enokizono, K. Okamoto, “Designing a Low-Loss Induction Motor Considering the Vector Magnetic Properties”, IEEE Transactions on Magnetics, Vol. 38, No. 2, pp. 877-880, 2002.
  64. 64)M. Enokizono, Y. Fujita, “Improvement of E&S Modeling for Eddy-Current Magnetic Field Analysis”, IEEE Transactions on Magnetics, Vol. 38, No. 2, pp. 881-884, 2002.
  65. 65)Y. Hashimoto, M. Enokizono, “Measurement of the Localized Iron Loss in Electromagnetic Steel Sheet by using the Needle Probe Method”, Journal of Applied Physics, Vol. 91, No. 10, pp. 6935-6937, 2002.
  66. M. Enokizono, H. Shimoji, T. Horibe, “Loss Evaluation of Induction Motor by using Magnetic Hysteresis E&S2 Model”, IEEE Transactions on Magnetics, Vol. 38, No. 5, pp. 2379-2381, 2002.
  67. M. Enokizono, “Magnetic Hysteresis Modelling for Vector Magnetic Property”, International Journal of Applied Electromagnetics and Mechanics, IOS Press, Part I, Vol. 14, pp. 203-208, 2002.
  68. M. Enokizono, Y. Hashimoto, N. Mogi, “Iron Loss Distribution by Influence of Crystal Grain in Electromagnetic Steel Sheet and Its Two-Dimensional Magnetic Properties”, Journal of The Magnetics Society of Japan, Vol. 25,No. 4-2,pp. 899-902, 2001.
  69. M. Enokizono, H. Amano, “Examination of the High Accuracy of E&S Modeling”, Journal of The Magnetics Society of Japan, Vol. 25,No. 4-2,pp. 1107-1110, 2001.
  70. M. Enokizono, “Two-Dimensional (Vector) Magnetic Property and Improved Magnetic Field Analysis for Electrical Machines”, Journal of Materials Processing Technology, Vol. 108, pp. 225-231, 2001.
  71. N. Soda, Masato Enokizono, ”E&S Hysteresis Model for Two-dimensional Magnetic Properties”, Journal of Magnetism and Magnetic Materials, Vol. 215-216, pp. 626-628, 2001.
  72. M. Enokizono, S. Fujiyama, H. Shimoji, J. Sievert, “Localized Distribution of Two-dimensional Magnetic Properties in Three-phase Induction Motor Core Model”, Journal of Magnetism and Magnetic Materials, Vol. 215-216, pp. 772-775, 2001.
  73. M. Enokizono, Y. Takeshima, “Measurement System of Alternating Magnetic Properties under DC-biased Field”, Journal of Magnetism and Magnetic Materials, Vol. 215-216, pp. 704-707, 2001.
  74. H. Shimoji, M. Enokizono, T. Todaka, “Iron Loss and Magnetic Fieles Analysis of Permanent Magnet Motors by Improved Finite Element Method with E&S Model”, IEEE Transactions on Magnetics, Vol. 37, No. 5, pp. 3526-3529, 2001.
  75. M. Enokizono, Y. Takeshima, H. Matsuo, “Measuring Magnetic Properties under DC-biased Magnetization Using Single-Sheet Tester”, Journal of The Magnetics Society of Japan, Vol. 24, No. 4-2, pp. 987-990, 2000.
  76. N. Soda, M. Enokizono, “Improvement of T-Joint Part Constructions in Three-Phase Transformer Cores by Using Direct Loss Analysis with E&S Model”, IEEE Transactions on Magnetics, Vol.36, No. 4, pp. 1285-1288, 2000.
  77. M. Enokizono, K. Takahasi, Y. Yoshida, T. Kubota, ”Magnetic Properties of Double Grain-Oriented Steel Sheet in Rotational Flux Conditions”, Journal of The Magnetics Society of Japan, Vol. 24, No. 4-2, pp. 659-662, 2000.
  78. N. Soda, M. Enokizono, “Hysteresis Model of Two-Dimensional Magnetic Properties Using an E&S Model”, Journal of The Magnetics Society of Japan, Vol. 24, No. 4-2, pp. 827-830,2000.
  79. M. Enokizono, K. Okamoto, “Magnetic Field Analysis Using E&S Model for Induction Motor”, Journal of The Magnetics Society of Japan, Vol. 24, No. 4-2, pp. 987-990, 2000.
  80. M.Enokizono , S. Fujiyama, I. Serikawa, “Distribution on Localized Two-Dimensional Magnetic Properties of Three-Phase Induction Motor Core”, Electrical Engineering in Japan, JIEE. Vol. 133, No.4, pp. 34-40, 2000.
  81. M. Enokizono, T. Miyazaki, “Study on Torque Improvement of Single-Phase Induction Motor by using FEM”, IEEE Transactions on Magnetics, Vol. 35, No. 5, pp. 3703-3706, 1999.
  82. M. Enokizono, M. Morikawa, S. Fujiyama, J. Sievert, I. Serikawa, “Distribution of Local Magnetic Properties in Three-Phase Induction Motor Model Core”, IEEE Transactions on Magnetics, Vol. 35, No. 5, pp. 3937-3939, 1999.
  83. M. Enokizono, I. Tanabe, T. Kubota, “Localized Distribution of Two-dimensional Magnetic Properties and Magnetic Domain Observation”, Journal of Magnetism and Magnetic Materials, Vol. 196-197, pp. 338-340, 1999.
  84. M. Enokizono, I. Tanabe, K. Takahashi, Y. Yoshida, T. Kubota, “Effects of Scratching on Two-dimensional Magnetic Properties in Grain-oriented Silicon Steel Sheet”, Journal of Magnetism and Magnetic Materials, Vol. 196-197, pp. 335-337, 1999.
  85. Y. Yoshida, M. Enokizono, T. Todaka, G. Shirakawa, “Vector Magnetic Properties in Arbitrary Direction of Various Kinds of Magnetic Materials”, Journal of Magnetism and Magnetic Materials, Vol. 196-197, pp. 904-906, 1999.
  86. M. Enokizono, N. Soda, “Core Loss Analysis of Transformer by Improved FEM”, Journal of Magnetism and Magnetic Materials, Vol. 196-197, pp. 910-912, 1999.
  87. M. Enokizono, Y. Takeshima, “Measuring Method of Magnetic Properties of Electrical Steel Sheets under DC-biased Magnetization with Flux Meter”, Journal of Magnetism and Magnetic Materials, Vol. 196-197, pp. 913-914, 1999.
  88. M. Enokizono, Y. Takeshima, “Measurement Method of DC-biased Magnetic Properties on Silicon Steel Sheet”, Transaction of the Institute of Electrical Engineers of Japan, Vol. 119-A, No. 11, pp. 1330-1335, 1999.
  89. M. Enokizono, S. Fujiyama, I. Serikawa, “Localized Two-Dimensional Magnetic Properties of Three-phase Induction Motor Model Core”, Transaction of the Institute of Electrical Engineers of Japan, Vol. 119-A, No. 11, pp. 1336-1341, 1999.
  90. M. Enokizono, N. Soda, “Iron Loss Analysis of Transformer Core Model by FEM Considering Vector Magnetic Properties”, IEEE Transactions on Magnetics, Vol. 35, No. 5, pp. 3008-3011, 1999.
  91. M. Enokizono, Y. Sadanaga, “Improved Magnetic Field Analysis of Induction Motor Models”, IEEE Transactions on Magnetics, Vol. 34, No. 5, pp. 2621-2624, 1998.
  92. M. Enokizono, N. Soda, “Direct Magnetic Loss Analysis by FEM considering Vector Magnetic Properties”, IEEE Transactions on Magnetics, Vol. 34, No. 5, pp. 3008-3011, 1998.
  93. M. Enokizono, I. Tanabe, T. Kubota”, Local Iron Loss Distribution in a Grain-oriented 3% Silicon Steel Sheet by Two-Dimensional Magnetic Measurement”, Journal de Physique IV, Vol. 8, pp. Pr2-713~Pr2-716, 1998.
  94. M. Enokizono, S. Fujiyama, “The Influence of Compressive Stress on the Magnetic Flux Density in the Three-phase Induction Motor Core model”, Journal de Physique IV, Vol. 8, pp. Pr2-713~Pr2-716, 1998.
  95. M. Enokizono, I. Tanabe, T. Kubota, “Local Distribution on Magnetic Properties in Grain-oriented Silicon Steel Sheet”, Journal of Applied Physics, Vol. 83, No. 11, pp. 6486-6488, 1998.
  96. M. Enokizono, N. Soda, “Study on Numerical Modeling of Anisotropic Magnetic Properties”, Journal of Technical Physics, Vol. 39, No. 3-4, pp. 429-436, 1998.
  97. M. Enokizono, T. Todaka, I. Tanabe, “Design of Yoke Shapes in a Loss Tester”, Journal of Technical Physics, Vol. 39, No. 3-4, pp. 443-450, 1998.
  98. M. Enokizono, I. Tanabe, “Local Two-Dimensional Magnetic Properties of Grain-Oriented Sheet”, Journal of The Magnetics Society of Japan, Vol. 22, No. 4-2,pp. 901-904, 1998.
  99. M. Enokizono, I. Tanabe, “Studies on a New Simplified Rotational Loss Tester”, IEEE Transactions on Magnetics, Vol. 33, No. 5, pp. 4020-4022, 1997.
  100. M. Enokizono, N. Soda, “Finite Element Analysis of Transformer Model Core with Measured Reluctivity Tensor”, IEEE Transactions on Magnetics, Vol. 33, No. 5, pp. 4110-4112, 1997.
  101. M. Enokizono, S. Mori, O. Benda, “A Treatment of the Magnetic Reluctivity Tensor for Rotating Magnetic Field”, IEEE Transactions on Magnetics, Vol. 33, No. 2, pp. 1608-1611, 1997.
  102. M. Enokizono, K. Matsumura, F. Mohri, “Magnetic Field Analysis of Anisotropic Magnet Problems by Finite Element Method”, IEEE Transactions on Magnetics, Vol. 33, No. 2, pp. 1612―1615, 1997.
  103. M. Enokizono, I. Tanabe, “Simplified Two-Dimensional Magnetic Measurement Apparatus, “Journal of The Magnetics Society of Japan,Vol. 21,No. 4-2,pp. 713-716, 1997.
  104. M. Enokizono, K. Kawamura, M. Morikawa, J.D. Sievert, I. Serikawa, “Distribution of the Loss in a Three Phase Induction Motor Model for Two-Dimensional Magnetic Measurement”, Journal of The Magnetics Society of Japan, Vol. 21, No. 4-2, pp. 701-704, 1997.
  105. M. Enokizono, T. Todaka, Y. Midou, “Numerical Simulation of Domain Structure in Magnetic Thin Sheet”, IEEE Transactions on Magnetics, Vol. 32, No. 3, pp. 1172-1175, 1996.
  106. T. Kanada, M. Enokizono, K. Kawamura, “Distribution on Localized Iron Loss of Three-Phase Amorphous Transformer Model Core by using Two-Dimensional Magnetic Sensor”, IEEE Transactions on Magnetics, Vol. 32, No. 5, pp. 4797-4799, 1996.
  107. M. Enokizono, M. Morikawa, K. Kawamura, J. Sievert, “Distribution of Two-Dimensional Magnetic Properties in Three-Phase Induction Motor Model Core”, IEEE Transactions on Magnetics, Vol. 32, No. 5, pp. 4989-4991, 1996.
  108. M. Enokizono, T. Todaka, K. Nakamura, “Flux Distribution in a Wound Core of a Single-Phase Transformer”, Journal of Magnetism and Magnetic Materials, Vol. 160, pp. 61-62, 1996.
  109. M. Enokizono, S. Kanao, K. Shibao, “Permeability Tensor of High Induction Level in a Rotational Magnetic Flux”, Journal of Magnetism and Magnetic Materials, Vol. 160, pp. 73-74, 1996.
  110. T. Kanada, M. Enokizono, K. Kawamura, J. Sievert, “Two-Dimensional Magnetic Properties of a Three-Phase Amorphous Transformer Core”, Journal of Magnetism and Magnetic Materials, Vol. 160, pp. 77-78, 1996.
  111. M. Enokizono, N. Soda, ""Magnetic Field Analysis by Finite Element Method using Effective Anisotropic Field”, IEEE Transactions on Magnetics, Vol. 31, No. 3, pp. 1793-1796, 1995.
  112. M. Enokizono, K. Yuki, S. Kawano, “An Improved Magnetic Field Analysis in Oriented Sheet by Finite Element Method considering Tensor Reluctivity”, IEEE Transactions on Magnetics, Vol. 31, No. 3, pp. 1797-1800, 1995.
  113. M. Enokizono, T. Todaka, S. Kanao, “Two-Dimensional Magnetic Properties I. Arbitrary Magnetostriction under Alternating Magnetic Flux”, Journal of The Magnetics Society of Japan, Vol.. 19, No. 2, pp. 293-296, 1995.
  114. M. Enokizono, T. Todaka, S. Kanao, “Two-Dimensional Magnetic Properties II. Arbitrary Magnetostriction under Rotational Magnetic Flux”, Journal of The Magnetics Society of Japan, Vol. 19,No. 2, pp.297-300, 1995.
  115. M. Enokizono, T. Todaka, S. Kawano, Y. Okazaki, “Two-Dimensional Magnetic Property of Double Oriented Silicon Steel Sheet”, Journal of The Magnetics Society of Japan, Vol. 19, No. 2, pp. 437-440, 1995.
  116. M. Enokizono, T. Todaka, S. Kanao, “New Expression of Alternating Magnetic Property on Grain-Oriented Silicon Steel Sheet (Two-Dimensional Magnetic Property)”, Journal of The Magnetics Society of Japan, Vol. 19, No. 2, pp. 449-452, 1995.
  117. M. Enokizono, K. Kawamura, J. Sievert, “Discussion on Localized Distribution of Two-Dimensional Magnetic Properties in Three-Phase Transformer Model Core”, Journal of The Magnetics Society of Japan, Vol. 19, No. 2, pp. 585-588, 1995.
  118. M. Enokizono, T. Todaka, T. Katai, “Magnetic Property Measurement System using Three-axis Probe”, Journal of the Japan Society of Applied Electromagnetics, Vol. 3, No. 1, pp. 83-86, 1995.
  119. M. Enokizono, “Two-Dimensional Magnetic Property”, Transaction of the Institute of Electrical Engineers of Japan, Vol. 115-A, No. 1, pp. 1-8, 1995.
  120. M. Enokizono, K. Kawamura, J. Sievert, “Two-dimensional Magnetic Properties of Three-phase Transformer Core”, International Journal of Applied Electromagnetics in Materials, Supplement, Vol. 6, pp. 659-662, 1995.
  121. M. Enokizono, “Magnetic Field Analysis of Anisotropic Problem by Finite Element Method”, International Journal of Applied Electromagnetics in Materials, Supplement, Vol. 6, pp. 265-268, 1995.
  122. M. Enokizono, K. Yuki, S.Kanao, ""Magnetic Field Analysis by Finite Element Method taking Rotational Hysteresis into account”, IEEE Transactions on Magnetics, Vol. 30, No. 5, pp. 3375-3378, 1994.
  123. M. Enokizono, M. Kumoi, S. Kawano, ""Finite Element Analysis of Anisotropic Magnetic Materials taking Rotation Magnetization into account”, IEEE Transactions on Magnetics, Vol. 30, No. 5, pp. 3387-3390, 1994.
  124. M. Enokizono, K. Kawamura, J. Sievert, “New Magnetic Search Coil System for Two-Dimensional Magnetic Measurement”, International Journal of Applied Electromagnetics in Materials, Supplement, Vol. 5, pp. 21-24, 1994.
  125. M. Enokizono, N. Soda, “A Study on Magnetic Properties of an Anisotropic Magnetic Material”, Journal of the Japan Society of Applied Electromagnetics, Vol. 2, No. 4, pp.20-24, 1993.
  126. M. Enokizono, S. Kanao, K. Yuki, “Permeability Tensor of Grain-oriented Silicon Steel Sheet”, Journal of Magnetism and Magnetic Materials, Vol. 133, Nos. 1-3, pp. 209-211, 1993.
  127. M. Enokizono, S. Kanao, S. Kawano, “Two-dimensional Magnetic Properties of Silicon Steel Sheet subjected to an Alternating Field”, Journal of Magnetism and Magnetic Materials, Vol. 133, Nos. 1-3, pp. 212-215, 1993.
  128. M. Enokizono, T. Todaka, K. Yuki, “Constitutive Equation of Magnetic Materials and Magnetic Field Analysis”, IEEE Transactions on Magnetics, Vol. 29, No. 2, pp. 1538-1541, 1993.
  129. M. Enokizono, T. Todaka, I. Serikawa, “Flux Distributions in Three-phase Induction Motor with Disconnection Problem”, IEEE Transactions on Magnetics, Vol. 29, No. 6, pp. 3165-3167, 1993.
  130. M. Enokizono, T. Todaka, S. Kanao, J. Sievert, “Two-dimensional Magnetic Properties of Silicon Steel sheet subjected to a Rotating Field”, IEEE Transactions on Magnetics, Vol. 29, No. 6, pp. 3550-3552, 1993.
  131. M. Enokizono, K. Yuki, “Magnetic Field Analysis based on Two-Dimensional Magnetic Properties by Finite Element Method”, Journal of Electrical Engineering, Vol. 44, No. 6, pp. 171-176, 1993.
  132. M. Enokizono, K. Yuki, “Numerical Modeling of Two-Dimensional Magnetic Properties for the Finite Element Method”, International Journal of Applied Electromagnetics in Materials, Vol. 4, No. 1, pp. 49-58, 1993.
  133. M. Enokizono, T. Todaka, K. Kawamura, J. Sievert, “Distribution of Two-Dimensional Magnetic Property in Three-Phase Transformer Model”, Journal of the Japan Society of Applied Electromagnetics, Vol. 1, No. 1, pp.39-42, 1993.
  134. M. Enokizono, T. Todaka, K. Yuki, “Two-Dimensional Magnetization Characteristics and Magnetic Field Analysis”, Journal of The Magnetics Society of Japan, Vol. 17,No. 2, pp. 553-558, 1993.
  135. M. Enokizono, S. Kanao, “Two-Dimensional Magnetization Characteristics”, Journal of The Magnetics Society of Japan, Vol. 17, No. 2, pp.559-564, 1993.
  136. M. Enokizono, T. Todaka, K. Wakayama, ”Rotational Flux Distribution in Amorphous Model Core”, Journal of The Magnetics Society of Japan, Vol. 16, No. 2, pp. 397-402, 1992.
  137. M. Enokizono, T. Todaka, T. Sashikata, J. Sievert, H. Ahlers, “Magnetic Field Analysis of Rotational Loss Tester with Vertical Yoke”, Journal of Magnetism and Magnetic Materials, Vol. 112, Nos. 1-3, pp. 81-84, 1992.
  138. M. Enokizono, G. Shirakawa, J. Sievert, ”Anomalous Anisotropy and Rotational Magnetic Properties of Amorphous Sheet”, Journal of Magnetism and Magnetic Materials, Vol. 112, Nos. 1-3, pp. 195-199, 1992.
  139. M. Enokizono, T. Todaka, K. Kihara”, Flux Distribution in Magnetic Core with Wound Strips of Laminations”, Journal of Magnetism and Magnetic Materials, Vol.112, Nos. 1-3, pp. 203-206, 1992.
  140. M. Enokizono, T. Todaka, K. Yuki, “Numerical Modeling of Two-Dimensional Magnetic Properties”, International Journal of Applied Electromagnetics in Materials, Supplement, Vol. 3, pp. 389-392, 1992.
  141. M. Enokizono, G. Shirakawa, T. Suzuki, J. Sievert, “Two-Dimensional Magnetic Property of Silicon Steel Sheet”, Journal of The Magnetics Society of Japan, Vol. 15, No. 2, pp. 265-270, 1991.
  142. M. Enokizono, “Numerical Simulation of Induction Motor by Finite Element Method”, International Journal of Applied Electromagnetics in Materials, Supplement, Vol. 1, pp. 243-246, 1991.
  143. M. Enokizono, T. Suzuki, J. Sievert”, Rotational Power Loss of Silicon Steel Sheet”, IEEE Transactions on Magnetics, Vol. 26, No. 5, pp. 2562-2564, 1990.
  144. M. Enokizono, J. Sievert, H. Ahlers, “Optimum Yoke Construction for Rotational Loss Measurement Apparatus”, Anales de Fisica, Vol. 86, pp. 320-322, 1990.
  145. M. Enokizono, J. Sievert, “Analytical Studies on the Yoke Construction of a Single Sheet Tester”, Anales de Fisica, Vol. 86, pp. 35-37, 1990.
  146. M. Enokizono, T. Suzuki, J. Sievert, “Measurement of Iron Loss Using Rotational Magnetic Loss Measurement Apparatus”, Journal of The Magnetics Society of Japan, Vol. 14, No. 2, pp. 455-458, 1990.
  147. M. Enokizono, J. Sievert, “Magnetic Field and Loss Analysis in an Apparatus for the Determination of Rotational Loss”, Physica Scripta, Vol. 39, pp. 356-359, 1989.
  148. M. Enokizono, J. Sievert, “Numerical Analysis of Accuracy of Rotational Magnetic Loss Measurement apparatus”, Journal of The Magnetics Society of Japan, Vol. 13, No. 2, pp. 403-406, 1989.
  149. M. Enokizono, K. Ikeshita, “Analysis of Hysteresis Loss by Finite Element Method”, Transaction of the Institute of Electrical Engineers of Japan, Vol. 109-A, No. 6, pp. 247-254, 1989.
  150. M. Enokizono, T. Todaka, M. Aoki, “Magnetic Field Analysis of Permanent-Slit Capacitor Motor”, Transaction of the Institute of Electrical Engineers of Japan, Vol. 108-D, No. 6, pp. 588-594, 1988.
  151. M. Enokizono, “Measurement and Analysis of Magnetic Field in an Inverter-fed Three-Phase Squirrel-cage Induction Motor”, Transaction of the Institute of Electrical Engineers of Japan, Vol. 108-D, No. 9, pp. 821-828, 1988.
  152. M. Enokizono, T. Todaka, Y. Shirafuji, “Analysis of Magnetostriction on External Load by F.E.M”, Journal of The Magnetics Society of Japan, Vol. 10, No. 2, pp. 265-270, 1986.
  153. M. Enokizono, K. Kuwahara, T. Yano, “Experimental Study on the Distribution of Rotational Flux and Iron Losses of Three-phase Induction Motors by Using a Model Machine”, Transaction of the Institute of Electrical Engineers of Japan, Vol. 103-B, No. 12, pp. 844-850, 1983.

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