Modeling of transformer windings for fast transient studies: Experimental validation & performance comparison

Zaid Luna López, Pablo Gómez, Fermín P. Espino-Cortés, Raúl Peña-Rivero

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

© 2017 IEEE. Fast front pulses from lightning and switching conditions produce transient overvoltages and dielectric stresses that can result in premature deterioration or failure of transformer windings. Predicting these conditions in new transformer designs requires the implementation of internal winding models. This paper analyzes the accuracy and performance of different transformer winding models available in the literature, by means of comparisons with time-And frequency-domain measurements on a 2000-Turns disk-Type winding prototype, as well as evaluation of the computer time needed by each model to perform the corresponding simulation of the same prototype. The results show that including the frequency dependence of the model parameters is a decisive factor to accurately reproduce the measurements. They also show that a lumped parameter model described in a turn-by-Turn basis can provide accurate results and requires shorter simulation time than a distributed parameter model.
Original languageAmerican English
Pages (from-to)1852-1860
Number of pages1665
JournalIEEE Transactions on Power Delivery
DOIs
StatePublished - 1 Aug 2017

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Transformer windings
Validation Studies
Lightning
Deterioration

Cite this

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abstract = "{\circledC} 2017 IEEE. Fast front pulses from lightning and switching conditions produce transient overvoltages and dielectric stresses that can result in premature deterioration or failure of transformer windings. Predicting these conditions in new transformer designs requires the implementation of internal winding models. This paper analyzes the accuracy and performance of different transformer winding models available in the literature, by means of comparisons with time-And frequency-domain measurements on a 2000-Turns disk-Type winding prototype, as well as evaluation of the computer time needed by each model to perform the corresponding simulation of the same prototype. The results show that including the frequency dependence of the model parameters is a decisive factor to accurately reproduce the measurements. They also show that a lumped parameter model described in a turn-by-Turn basis can provide accurate results and requires shorter simulation time than a distributed parameter model.",
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Modeling of transformer windings for fast transient studies: Experimental validation & performance comparison. / López, Zaid Luna; Gómez, Pablo; Espino-Cortés, Fermín P.; Peña-Rivero, Raúl.

In: IEEE Transactions on Power Delivery, 01.08.2017, p. 1852-1860.

Research output: Contribution to journalArticle

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N2 - © 2017 IEEE. Fast front pulses from lightning and switching conditions produce transient overvoltages and dielectric stresses that can result in premature deterioration or failure of transformer windings. Predicting these conditions in new transformer designs requires the implementation of internal winding models. This paper analyzes the accuracy and performance of different transformer winding models available in the literature, by means of comparisons with time-And frequency-domain measurements on a 2000-Turns disk-Type winding prototype, as well as evaluation of the computer time needed by each model to perform the corresponding simulation of the same prototype. The results show that including the frequency dependence of the model parameters is a decisive factor to accurately reproduce the measurements. They also show that a lumped parameter model described in a turn-by-Turn basis can provide accurate results and requires shorter simulation time than a distributed parameter model.

AB - © 2017 IEEE. Fast front pulses from lightning and switching conditions produce transient overvoltages and dielectric stresses that can result in premature deterioration or failure of transformer windings. Predicting these conditions in new transformer designs requires the implementation of internal winding models. This paper analyzes the accuracy and performance of different transformer winding models available in the literature, by means of comparisons with time-And frequency-domain measurements on a 2000-Turns disk-Type winding prototype, as well as evaluation of the computer time needed by each model to perform the corresponding simulation of the same prototype. The results show that including the frequency dependence of the model parameters is a decisive factor to accurately reproduce the measurements. They also show that a lumped parameter model described in a turn-by-Turn basis can provide accurate results and requires shorter simulation time than a distributed parameter model.

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