Three Dimensional Numerical Solution for Maximum Magnetic Field of 21 kJ Superconducting Magnetic Energy Storage Device
Journal Title: ANALELE UNIVERSITATII DIN CRAIOVA - Seria Inginerie electrica - Year 2013, Vol 37, Issue 37
Abstract
To develop an optimized configuration of superconducting magnetic energy storage (SMES) device concerning the volume of the superconducting material and its cost, a two-dimensional numerical model was created in [11] using the finite element method in FEMM software. For numerical implementation, some geometrical parameters of the modular toroidal coil system were established under assumptions of equality between the inductance of the complete circular cross section toroid and rectangular cross section toroid. In this paper, a three-dimensional numerical solution for maximum magnetic field of the real geometry of the modular toroidal coil system is obtained using finite element method in ANSYS software. The MVP-edge based formulation has been employed for computing the static magnetic field. For minimize the work time, different amounts of additional memory have been used during the analyze, via an ANSYS configuration file. The results validate well enough the previous two dimensional numerical solution obtained with FEMM software and, consequently, its assumptions. Comparison of the two numerical models is made, highlighting the effectiveness of two-dimensional model concerning the work time and the hardware resources requirement. The advantage of threedimensional modeling is the possibility of description of real geometry, but this can be counterbalanced by well-chosen assumptions for a two-dimensional model.
Authors and Affiliations
Alin-Iulian Dolan, Florian Stefanescu
Keywords
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