Improved computation of core inductance for fast transient analysis of transformers

P. Gómez, Francisco De Leon, F. P. Espino-Cortés

Research output: Contribution to journalArticle

Abstract

This letter introduces a simple and accurate formula for the computation of the inductance component due to the flux inside the transformer core for fast transient analysis. When compared with an existing formula, the new formula yields considerably better behavior for a broad frequency range (1 Hz to 10 MHz). In addition, two finite-element method approaches for core inductance computation at different frequencies are evaluated and compared: flux linkage and method of energy. It is demonstrated that these methods can provide substantially different results at high frequencies.

Original languageEnglish (US)
Article number6842673
Pages (from-to)2034-2036
Number of pages3
JournalIEEE Transactions on Power Delivery
Volume29
Issue number4
DOIs
StatePublished - 2014

Fingerprint

Transient analysis
Inductance
Fluxes
Finite element method

Keywords

  • Fast transients
  • magnetic fields
  • transformer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

Cite this

Improved computation of core inductance for fast transient analysis of transformers. / Gómez, P.; De Leon, Francisco; Espino-Cortés, F. P.

In: IEEE Transactions on Power Delivery, Vol. 29, No. 4, 6842673, 2014, p. 2034-2036.

Research output: Contribution to journalArticle

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