Frequency-Domain Modal Analysis for Power-Electronic-Based Power Systems

Shih-Feng Chou; Xiongfei Wang; Frede Blaabjerg

doi:10.1109/TPEL.2020.3032736

Frequency-Domain Modal Analysis for Power-Electronic-Based Power Systems

Shih-Feng Chou, Xiongfei Wang, Frede Blaabjerg

Research output: Contribution to journal › Letter › peer-review

15 Citations (Scopus)

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Abstract

This letter presents two frequency-domain modal analysis methods, 'peak-picking' and 'circle fit' methods, used for current control interactions of grid-connected voltage-source converters (VSCs). Differing from the conventional resonance mode analysis, the modal impedances are analyzed with their Nyquist plots, instead of the magnitude-frequency response, which leads to an accurate prediction on the damping behavior of system. Experimental tests verify the theoretical modal analysis methods.

Original language	English
Article number	9234684
Journal	IEEE Transactions on Power Electronics
Volume	36
Issue number	5
Pages (from-to)	4910-4914
Number of pages	5
ISSN	0885-8993
DOIs	https://doi.org/10.1109/TPEL.2020.3032736
Publication status	Published - May 2021

Keywords

Eigenvalue
impedance model
modal analysis
resonances mode
voltage-source converters (VSCs)

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10.1109/TPEL.2020.3032736

Accepted author manuscriptAccepted author manuscript, 1.47 MB

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title = "Frequency-Domain Modal Analysis for Power-Electronic-Based Power Systems",

abstract = "This letter presents two frequency-domain modal analysis methods, 'peak-picking' and 'circle fit' methods, used for current control interactions of grid-connected voltage-source converters (VSCs). Differing from the conventional resonance mode analysis, the modal impedances are analyzed with their Nyquist plots, instead of the magnitude-frequency response, which leads to an accurate prediction on the damping behavior of system. Experimental tests verify the theoretical modal analysis methods.",

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AU - Blaabjerg, Frede

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N2 - This letter presents two frequency-domain modal analysis methods, 'peak-picking' and 'circle fit' methods, used for current control interactions of grid-connected voltage-source converters (VSCs). Differing from the conventional resonance mode analysis, the modal impedances are analyzed with their Nyquist plots, instead of the magnitude-frequency response, which leads to an accurate prediction on the damping behavior of system. Experimental tests verify the theoretical modal analysis methods.

AB - This letter presents two frequency-domain modal analysis methods, 'peak-picking' and 'circle fit' methods, used for current control interactions of grid-connected voltage-source converters (VSCs). Differing from the conventional resonance mode analysis, the modal impedances are analyzed with their Nyquist plots, instead of the magnitude-frequency response, which leads to an accurate prediction on the damping behavior of system. Experimental tests verify the theoretical modal analysis methods.

KW - Eigenvalue

KW - impedance model

KW - modal analysis

KW - resonances mode

KW - voltage-source converters (VSCs)

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DO - 10.1109/TPEL.2020.3032736

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JO - IEEE Transactions on Power Electronics

JF - IEEE Transactions on Power Electronics

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M1 - 9234684

ER -

Frequency-Domain Modal Analysis for Power-Electronic-Based Power Systems

Abstract

Keywords

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Modeling of Large-Scale Power Electronics Based Power System

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