Electromagnetic transients modelling of split-winding traction transformers for frequency response analysis

Electromagnetic transients modelling of split-winding traction transformers for frequency response analysis

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High-frequency electromagnetic transients modelling of voltage and current distribution due to electromagnetic transients are of great importance in transformer design. In this study, a 2D and 3D finite-element, coupled field-circuit and modified detailed model is introduced for high-frequency electromagnetic transient studies in split-winding traction transformers. The proposed coupled field-circuit approach uses a 2D finite-element model that is coupled with an external circuit to analyse the electromagnetic transient behaviour of the split-winding traction transformer. Also, a detailed model is introduced for this type of transformer and its results are compared with the introduced coupled field-circuit model and complete 3D finite-element model. After validating the introduced models, the models are employed to analyse the frequency response of the split-winding traction transformer.


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