Pole-Selective Residue Perturbation Technique for Passivity Enforcement of FDNEs

This paper presents a new passivity enforcement technique for frequency-dependent network equivalents expressed as rational models. The main feature of the proposed technique is that only a few residues of the rational model are perturbed, so that the passivity enforcement procedure becomes computat...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2018-12, Vol.33 (6), p.2746-2754
Main Authors: Morales, Jesus, Mahseredjian, Jean, Sheshyekani, Keyhan, Ramirez, Abner, Medina, Edgar, Kocar, Ilhan
Format: Article
Language:English
Subjects:
Admittance
Computational modeling
Computer simulation
Eigenvalues and eigenfunctions
Enforcement
Fitting
Frequency dependent network equivalents
Integrated circuit modeling
Model accuracy
Passivity
passivity enforcement
Perturbation methods
Time-domain analysis
transient simulation
vector fitting
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Summary:This paper presents a new passivity enforcement technique for frequency-dependent network equivalents expressed as rational models. The main feature of the proposed technique is that only a few residues of the rational model are perturbed, so that the passivity enforcement procedure becomes computationally more efficient compared to existing methods. The proposed technique is verified on practical network cases. It is demonstrated that the accuracy of the perturbed model is maintained in frequency-domain fitting and time-domain simulations of transients.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2018.2810706