CHIKHI HOSSEM EDDINEBOUHNIK ISMAILEnca/ BELKHIRI Salah2025-07-092025-07-092025-06-30https://repository.univ-msila.dz/handle/123456789/46886This study compares a conventional autotransformer with one using superconducting materials (YBCO). Finite Element simulations via MATLAB/PDETOOL show reduced thermal losses, higher current density, and improved thermal stability in the superconducting model.enAutotransformerSuperconductorsMATLABCurrent Density.Thesis