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Communication Dans Un Congrès Année : 2023

Loss evaluation of a superconducting cable and its terminations for a DC railway network

Résumé

In recent years, there have been an increasing number of projects to use superconducting cables to address industrial challenges. In particular, the integration of superconducting cables into the network can be a solution to the challenges of increasing traffic on the railway network and regulatory issues. In this paper, we study the behavior of a single-pole superconducting cable and the losses of the whole installation, including terminations, in a daily scenario in the Paris area. To this end, we present a comprehensive approach to coupling a finite element (FE) model and an electrical circuit (EC) of the railway network with Simulink. The FE model is based on a cable model with a nominal current of 3.5 kA and a nominal voltage of 1.5 kV. This is the world's first cable project that will be installed on a commercial line of a railway network, near the Montparnasse station. The power law E(J) and the temperature and magnetic field dependence of the critical current density Jc(B,theta) will be considered. The current flowing through the superconducting cable and terminations shown in Fig. 1 is simulated using a dynamic model of the railway network presented in [1] which includes an electrical model of the substation, a mechanical model to determine the traction force and train displacement and a variable line impedance model for the network. Finally, an energy balance will be presented, detailing the choice of the cooling system to ensure the proper functioning of the entire superconducting installation. Fig. 1: Current flowing in the superconducting cable as a function of time, where T1, T2, T3, T4, T5, T6, T7, T8, T9 represent the departure of trains during the day.
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Dates et versions

hal-04147728 , version 1 (01-07-2023)

Identifiants

  • HAL Id : hal-04147728 , version 1

Citer

Ghazi Hajiri, Kévin Berger, Frédéric Trillaud, Hervé Caron. Loss evaluation of a superconducting cable and its terminations for a DC railway network. 8th International Conference on Superconductivity and Magnetism - ICSM2023, May 2023, Fethiye, Turkey. p. 254, ID 321. ⟨hal-04147728⟩
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