Modeling of the Inrush Current in Superconducting Transformers Using PSpice

Influence of the HTS Winding Tape on Limiting the Transient Currents in Superconducting Transformers

“…After the transformations, the resistances of the superconductor layer can be represented by Equation ( 3 In order to formulate a computer model of one-phase transformer HTS 21 MVA 70/10.5 kV, a calculative project was elaborated for the geometric and electric parameters, based on the methodology depicted in [21][22][23][24][25][26][27][28][29]. These parameters are shown in Figure 5 and Table 3 [14,18].…”

“…In recent years, there have been several articles [10][11][12][13][14][15] that have described the transition of superconducting tapes in HTS transformer windings from superconducting to resistive during a short-circuit. In the literature, there are also works presenting methods of calculating the switching current in superconducting transformers [15][16][17][18][19][20]. The experimental results of the current waveforms of superconducting transformers for the operational short-circuit are presented in [10][11][12]15], while for the process of connecting to the network, see studies [15,16,19,20].…”

“…The work mainly describes the operation and laboratory measurements of physical models, and the design of superconducting transformers is mainly based on the electromagnetic analysis of the finite element method (FEM). However, circuit modelling using PSpice provides satisfactory results and is faster compared to FEM analysis [17,18]. There are also some papers describing the models, design, and construction of HTS transformers of both small and considerable power [21][22][23][24][25][26][27][28][29][30].…”