Abstract
In order to investigate the voltage distribution in transformer winding suffering from the lightning surge, a simulation model of 180-turn winding based on multiconductor transmission line theory is established and a new method for the calculation of voltage distribution is offered in this chapter. First, the finite element method calculates the electric parameters R, L, C, and G. Second, the voltage transfer functions are obtained by solving the MTL equations with all frequencies. Then the voltage transfer functions are fitted with rational functions by vector fitting. At last, the voltage response in transformer winding is shaped by the convolution between the voltage transfer functions and the excitation. The simulation (Ansoft and Matlab) and tested result confirm the validity of this proposed methodology. This research is of great significance for the safety running of transformer.
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© 2014 Springer Science+Business Media New York
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He, J., Xu, J., Yan, X., Jiang, R., Lan, W. (2014). Calculation of Lightning Surge Distribution in Transformer Windings. In: Xing, S., Chen, S., Wei, Z., Xia, J. (eds) Unifying Electrical Engineering and Electronics Engineering. Lecture Notes in Electrical Engineering, vol 238. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-4981-2_3
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DOI: https://doi.org/10.1007/978-1-4614-4981-2_3
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