Development of analysis method for calculating electromagnetic force using finite element method and boundary element method in electrical machinery

电机有限元法和边界元法计算电磁力分析方法的开发

• 批准号: 06650338
• 负责人: ONUKI Takashi
• 金额: $ 1.22万
• 依托单位: Waseda University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06650338/
• 关键词: FEM; BEM; Hybrid FE-BE method; LIM; PMSM; Optimal construction; Block feeding; 超伝導機器; 三次元解析; リニア同期モータ; リニア誘導モータ; 分割磁極; スリット形二次導体; ラダー形二次導体

The use of computer software for the design of electrical machinery is now almost universal. The finite element method (FEM) and the boundary element method (BEM), which have entirely different features from each other, are very useful for computer numerical analysis. In the analysis of general motor, the FEM suits the analysis of a complicated region which includes teeth, slots, and magnets, and so on. On the other hand, the BEM is useful for analyzing the electromagnetic quantities caused by rotation without remeshing in the FEM.The hybrid finite element and boundary element method (FE-BE) method that possess the advantages in these methods is also useful.In this research, we first investigated several basic study for accurate analysis by FEM,BEM,and FE-BE method. And than, taking account of the advantages in both methods, we apply the hybrid FE-BE method to the analyzes of several electrical machines, which are researching in our laboratory : linear induction motor (LIM), linear synchronous motor (LSM), and permanent magnet type synchronous motor (PMSM) having plural sub-magnets for one pole. By investigating the characteristics of the motors, we could obtain some optimal motor constructions. In addition, taking account of external voltage sources, we also derived an optimal block feeding conditions in single-sided LIM.The adequacy of the analysis results were confirmed by experiment.

使用计算机软件进行电机设计现在几乎已普及。有限元法和边界元法是计算机数值分析中非常有用的两种方法，它们具有完全不同的特点。在一般电机的分析中，有限元法适合于分析包括齿、槽、磁铁等在内的复杂区域，而边界元法则适合于分析旋转引起的电磁量，而不需要重新划分网格，有限元-边界元混合法（FE-BE）具有上述方法的优点，在本研究中，本文首先研究了有限元法、边界元法和FE-BE法精确分析的几个基本问题。然后，考虑到这两种方法的优点，我们将混合FE-BE方法应用于分析几个电机，这是在我们的实验室正在研究：直线感应电机（LIM），直线同步电机（LSM），永磁型同步电机（PMSM）有多个子磁铁的一个磁极。通过研究电机的特性，我们可以得到一些最佳的电机结构。此外，在考虑外部电压源的情况下，我们还推导出了单侧直线感应电机的最佳分段馈电条件，并通过实验验证了分析结果的正确性。

项目成果

小貫 天: "三次元有限要素法によるリニア誘導機二次導体スリットの解析" 電気学会論文誌D. 114. 1122-1129 (1994)

大贯十：“利用三维有限元法分析直线感应电机中的次级导体狭缝” 日本电气工程师学会会刊 D. 114. 1122-1129 (1994)

M. Tsuda: "Influence of conductor geometry on normal-zone propagation velocities in NbTi/CuNi composite superconductors" Advanced Cryogenic Engineering. 39. 445-451 (1994)

M. Tsuda：“导体几何形状对 NbTi/CuNi 复合超导体法线区传播速度的影响”《高级低温工程》。

T.Onuki, et al.: "Improvement in the calculation of electromagnetic force by the FEM" IEEE Trans.on Magnetics. Vol.30 No.4. 1863-1866 (1994)

T.Onuki 等人：“FEM 电磁力计算的改进”IEEE Trans.on Magnetics。

T.Onuki, et al.: "Secondary constructions of linear induction motor with divided permanent magnets" Trans.on IEE Japan. Vol.116-D No.1. 88-93 (1996)

T.Onuki 等人：“带有分割永磁体的线性感应电机的二次结构”Trans.on IEE Japan。

Y.Kamiya: "3D Eddy current analysis by the finite element method using double nodes technique" IEEE Transactions on Magnetics. 32・3. 741-744 (1996)

Y. Kamiya：“使用双节点技术的有限元法进行 3D 涡流分析”IEEE Transactions on Magnetics 32・3 (1996)。