Output Admittance Synthesizer for Synchronverters

This article proposes an "output admittance synthesizer" (OAS), a feedback block that enables the synchronverter (SV) to have specific values of output admittance (modulus and phase), at specified harmonic frequencies (and sequences) of the fundamental frequency of the grid voltage (includ...

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Bibliographic Details
Published inIEEE transactions on industrial electronics (1982) Vol. 69; no. 5; pp. 4320 - 4328
Main Authors Busada, Claudio A., Jorge, Sebastian Gomez, Solsona, Jorge A.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.05.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Admittance
Closed loops
Electric potential
Electrical impedance
Feedback
Harmonic analysis
Harmonics
Impedance
Inverters
Microgrid
output impedance
power electronics
Power system stability
Resonant frequencies
synchronverter (SV)
Synthesis
Synthesizers
virtual impedance
Voltage
Voltage measurement
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Summary:This article proposes an "output admittance synthesizer" (OAS), a feedback block that enables the synchronverter (SV) to have specific values of output admittance (modulus and phase), at specified harmonic frequencies (and sequences) of the fundamental frequency of the grid voltage (including <inline-formula><tex-math notation="LaTeX">\pm</tex-math></inline-formula>1). The sequence discrimination enables the SV to have two different admittances at each frequency: A positive sequence and a negative sequence admittance. This feature is of interest for both treating harmonics and imbalance of the voltage at the point of common coupling. Additionally, using the OAS allows to place the closed loop poles of the resulting feedback system at arbitrary locations.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2021.3082069