A Loewner/MPM-VF Combined Rational Fitting Approach

Jesus Morales, Jean Mahseredjian, Abner Ramirez, Keyhan Sheshyekani, Ilhan Kocar

Research output: Journal article publicationJournal articleAcademic researchpeer-review

8 Citations (Scopus)


This paper presents a novel methodology for the computation of rational models for electromagnetic transients simulations. The proposed methodology combines the capabilities of either the Loewner Matrix (LM) or the Matrix Pencil Method (MPM) for model-order identification with the high accuracy of the vector fitting (VF) technique. The proposed technique achieves improved performance compared with individual application of MPM, LM, and VF techniques. A unique advantage of the proposed algorithm is that the model order can be determined automatically.

Original languageEnglish
Article number8758923
Pages (from-to)802-808
Number of pages7
JournalIEEE Transactions on Power Delivery
Issue number2
Publication statusPublished - 1 Apr 2020
Externally publishedYes


  • Electromagnetic transient simulations
  • frequency dependent network equivalents
  • Loewer matrix
  • matrix pencil method
  • passivity
  • rational model
  • vector fitting

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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