چكيده به لاتين
In this thesis, HTS and conventional transformer with the same capacity and voltage level are investigated and multiphysics analysis (thermal, magnetic, and mechanical analysis) is performed using the finite element method (FEM) for both transformers in different short-circuit conditions. First, using the PSCAD / EMTDC software, the problem was modeled and the current passing through the HTS and conventional transformer windings is calculated in different short-circuit conditions. Also, temperature rise of transformer windings caused by passing current through them was calculated. For HTS transformer, two stabilizer layers, made from copper and stainless steel, were used and the results were compared. Then by using FLUX software, multiphysics analysis was done in order to studying short circuit current effect on HTS and conventional transformer windings and electromagnetic-thermal analysis for both transformers was done. Finally, output results from both simulations were compared and verified according to authentic articles. Generally, in this thesis HTS transformer advantage to conventional transformer in terms of less loss, less weight and volume, more efficiency, less fault current amplitude and more other advantages will be illustrated.
Keywords: Conventional Transformer, HTS Transformer, Winding, Finite Element Method, Multiphysics, Short Circuit
