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Title: | Transient thermal modelling of short-circuit test for conductors by means of dimensional reduction |
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Author: | Abomailek Rubio, Basel Carlos; Capelli, Francesca; Riba Ruiz, Jordi-Roger; Casals Torrens, Pau; Moreno Eguilaz, Juan Manuel |
Other authors: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica; Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica; Universitat Politècnica de Catalunya. MCIA - Motion Control and Industrial Applications Research Group |
Abstract: | This paper proposes a fast and accurate method to simulate the temperature rise due to a short-circuit condition in power conductors of aluminum based on one-dimensional reduction and the application of the finite difference method (FDM). The method suggested discretizes the analyzed conductor into several small onedimensional nodes or elements. To improve accuracy and speed, the transient method proposed here applies a onedimensional approach but analyzing in each node, the three-dimensional geometry of the conductor. By this way, and at each time-step, the convective coefficient and the incremental resistance of each node are determined and a further energy balance is calculated, thus obtaining realistic and accurate results. Results attained by means of the proposed method are validated against finite element method (FEM) simulations and experimental results conducted in a power laboratory, which corroborate the usefulness and accurate results of the proposed method. |
Abstract: | Peer Reviewed |
Subject(s): | -Àrees temàtiques de la UPC::Enginyeria elèctrica -Electric conductors -Heat--Transmission -conductors (electric) -finite difference methods -finite element analysis -geometry -heat transfer -short-circuit currents -thermal analysis -transient analysis -transient thermal modelling -conductors short-circuit test -dimensional reduction -temperature rise -short-circuit condition -power conductors -finite difference method -FDM -conductor 3D geometry -convective coefficient -incremental resistance -finite element method simulations -FEM simulations -Conductors elèctrics -Calor -- Transmissió |
Rights: | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
Document type: | Article - Published version Conference Object |
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