Ghassan A. Bilal, Juan M. Villanueva-Ramirez, P. Gómez
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Frequency domain transformer model for electromagnetic transient analysis of networks
In this paper a frequency domain three-phase transformer model is implemented using a nodal approach. Easiness and effectiveness of the model are demonstrated by its inclusion in a simplified distribution network. Moreover, angular displacement inherent to different connections of windings is taken into account which proves its versatility. Transient overvoltages caused by switching are computed using the model and the time domain response is obtained using the Numerical Laplace Transform (NLT). Results are assessed by comparisons with EMTP-RV.
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