Efficient Use of Steels and Development of Low Loss Machines

钢材的有效利用和低损耗机器的开发

• 批准号: 06045031
• 负责人: NAKATA Takayoshi
• 金额: $ 2.56万
• 依托单位: Okayama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06045031/
• 关键词: numerical analysis; measuring technique; nonlinear; anisotropic material; iron loss; low loss machine; 有限要素法; ニュートン・ラフソン法; ICCG法; 変圧器

A method for calculating flux distrbutions in anisotropic materials and measuring technique of magnetic characteristics are investigated for the purpose of the development of low loss machines and making the efficient use of steel. The results obtained can be summarized as follows :1. Development of Softwares for Analysis of Flux Distributions in Anisotropic Materials(1) The functions Bx=fx (Hx, Hy), By=fy (Hx, Hy) are used for the magnetic characteristics of anisotropic materials.(2) The convergence characteristics of nonlinear iteration and matrix solver are improved by using relaxation and over relaxation factors, respectively.(3) The 3-D time periodic finite element method is developed for nonlinear steady state analysis.2. Development of Measurement Method for Magnetic Characteristics in Anisotropic Materials(1) Double yokes is used for measuring the magnetic characteristics in arbitrary directions of anisotropic materials.(2) The effect of the waveforms of B and H on the measured B-H curves is investigated.3. Development of Method for Estimating Iron LossesThe hybrid method which couples the calculation and the measurement is developed for loss estimation.4. Verification of SoftwareThe verification model is proposed, and results calculated using the developed method are in good agreement with measured results.5. ApplicationsThe developed analysis and measurement method are applied for the investigation of flux distribution in a reactor. The weight of the reactor is decreased while the efficiency is increased.

为了开发低损耗电机和有效利用钢材，研究了各向异性材料中磁通分布的计算方法和磁特性的测量技术。主要研究结果如下：1.各向异性材料磁通分布分析软件的研制（1）各向异性材料的磁特性用函数Bx=fx（Hx，Hy），By=fy（Hx，Hy）表示。(2)分别利用松弛因子和超松弛因子改善了非线性迭代和矩阵求解器的收敛特性。(3)发展了三维时间周期有限元法用于非线性稳态分析.各向异性材料磁特性测量方法的发展（1）双磁轭用于测量各向异性材料在任意方向上的磁特性。(2)研究了B和H波波形对测量的B-H曲线的影响.铁损估算方法的发展提出了一种将计算与测量相结合的铁损估算方法.软件的验证提出了验证模型，利用该方法计算的结果与实测结果吻合较好.应用所开发的分析和测量方法适用于调查在反应堆中的通量分布。反应器的重量减少，同时效率增加。

项目成果

N.Takahashi, T.Nakata, K.Fujiwara and K.Muramatsu: "3-D Time-Periodic Finite Element Analysis of Magnetic Field in Non-Oriented Materials Taking into Account Hysteresis" Proceedings of the CEFC. (1996)

N.Takahashi、T.Nakata、K.Fujiwara 和 K.Muramatsu：“考虑磁滞现象的非取向材料磁场的 3-D 时间周期有限元分析”CEFC 论文集。

A.Basak, T.Nakata and N.Takahashi: "Optimisation of Permanent-Magnet Lifting Devices Using Finite Element Analysis" Proceedings of the CEFC. (1996)

A.Basak、T.Nakata 和 N.Takahashi：“利用有限元分析优化永磁起重装置”CEFC 论文集。

K.Fujiwara T.Nakata: "Comparison of Various Kinds of Edge Elements for Electromagnetic Field Analysis" Proceedings of the Compumag Conference. (1995)

K.Fujiwara T.Nakata：“用于电磁场分析的各种边缘元件的比较”Compumag 会议论文集。

中田高義: "汎用性のある自動計測システムの開発" 平6電気・情報関連学会中国支部連合大会. 090406 (1994)

Takayoshi Nakata：“多功能自动测量系统的开发”中国电气和信息学会分会平成6次会议（1994）。

藤原耕二,中田高義: "鉄損推定法における鉄損測定精度の実験的検討" 平7電気学会全国大会. 494 (1995)

Koji Fujiwara、Takayoshi Nakata：“铁损估算方法中铁损测量精度的实验研究”1997年日本电气工程师学会全国会议494（1995）。