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Accuracy of FEM and BEM for electromagnetic flux calculations in high power applications

By Jaime Cabanes Aracil, Jose Lopez-Roldan, Jacob Coetzee, Frank Darmann and Tee Tang


The development and design of electric high power devices with electromagnetic computer-aided engineering (EM-CAE) software such as the Finite Element Method (FEM) and Boundary Element Method (BEM) has been widely adopted. This paper presents the analysis of a Fault Current Limiter (FCL), which acts as a high-voltage surge protector for power grids. A prototype FCL was built. The magnetic flux in the core and the resulting electromagnetic forces in the winding of the FCL were analyzed using both FEM and BEM. An experiment on the prototype was conducted in a laboratory. The data obtained from the experiment is compared to the numerical solutions to determine the suitability and accuracy of the two methods

Topics: 090607 Power and Energy Systems Engineering (excl. Renewable Power), Finite Element Method, Boundary Element Method, high voltage, electromagnetic modelling
Year: 2012
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