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The magnetic circuit of transverse flux reluctance machines causes magnetic flux in three spatial directions. 3-D FEM can be used designing the magnetic circuit, but it requires a relatively long computation time. Therefore 3-D FEM is not useful for an optimization tool. This paper compares four much faster design methods: A simple analytical approach, a magnetic equivalent network, a modified 2-D...
This paper is about an analytical computation method for a transverse flux permanent magnet excited machine. The analytical computation method makes use of a magnetic equivalent circuit with lumped elements considering saturation. The magnetic values of the magnetic equivalent circuit are solved via nodal analysis. Having the entire magnetic equivalent circuit of one pole pair of the transverse flux...
The present paper refers to some examples that use the finite element method (FEM) in the process of analysis, design and optimization of the electrical machines used in wind energy conversion systems. The 2D-FEM program Opera 13 of Vector Fields is used in the analyzed examples. These examples refer to two types of synchronous generators with permanent magnets. Some possibilities and advantages of...
This paper reviews the literature concerned with capabilities and limitations of finite element analysis (FEA) and magnetic equivalent circuit (MEC) analysis for electrical machine design. The most common known models are based on equivalent circuits and related analytical models, or on FEA. Analytical models use highly simplified magnetics, and have difficulty extending into saturation. FEA typically...
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