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.

现在，计算机软件用于设计电气机械的设计几乎是通用的。具有完全不同特征的有限元方法（FEM）和边界元素方法（BEM）对于计算机数值分析非常有用。在对通用电机的分析中，FEM适合对包括牙齿，插槽和磁铁等复杂区域的分析。另一方面，BEM可用于分析由旋转而没有在FEM中重复旋转而引起的电磁量。混合有限元和边界元素方法（FE-BE）方法（FE-BE）方法（在这些方法中具有优势）也很有用。在这项研究中，我们首先研究了FEM，BEM，BEM，BEM和FE-BE方法的精确分析的几项基本研究。而且，除了考虑两种方法中的优势外，我们还将混合Fe-be方法应用于在我们的实验室中进行研究的几种电机的分析：线性感应电动机（LIM），线性同步电动机（LSM）和具有多个磁极亚磁铁的一极磁体型同步电动机（LSM）和永久磁铁型同步电动机（PMSM）。通过研究电动机的特性，我们可以获得一些最佳的运动构建体。此外，为了考虑外部电压源，我们还得出了单面LIM中最佳的块进料条件。分析结果的充分性通过实验证实。

项目成果

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。

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)。

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。

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: "Magnetic field analysis of nonlinear system considering both motion and voltage equations" IEEE Transactions on Magnetics. 33 (掲載決定). (1997)

T. Onuki：“考虑运动和电压方程的非线性系统的磁场分析”IEEE Transactions on Magnetics 33（已接受出版）。