Optimisation Design of a Low-Frequency Eddy Current Rail Heater

Aldo Canova (), Michele Tartaglia and Michele Quercio
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Aldo Canova: Energy Department, Politecnico di Torino, 10129 Torino, Italy
Michele Tartaglia: Energy Department, Politecnico di Torino, 10129 Torino, Italy
Michele Quercio: Department of Electronic and Mechanical Engineering, Università Degli Studi Roma Tre, 00146 Rome, Italy

Energies, 2023, vol. 16, issue 21, 1-14

Abstract: The aim of the work is the optimisation of a rail heater, constituted by a magnetic core supplied by a sinusoidal current, which induces an eddy current in the rail. Optimisation parameters are electrical and geometrical quantities: supply frequency, voltage amplitude, airgaps, and core shape, while objectives are power transferred to the rail, absorbed current, and power distribution index. Optimisation is performed by an accurate field analysis, provided by the finite element method (FEM), coupled to an automated multiobjective procedure based on fuzzy logic. Particular care has been devoted to the FEM model in order to take into account important phenomena as non-linearity magnetic behaviour and non-uniform distribution of current in the rail caused by eddy currents.

Keywords: eddy currents; induction heating; optimisation design; railroad (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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