Passivity analysis and enhancement of voltage control for voltage-source converters

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1 Citationer (Scopus)

Abstrakt

The grid-forming control is increasingly used with distributed generation systems either in grid-connected mode or islanded mode. The voltage control is essential to a grid-forming converter, which is generally realized with a dual-loop voltage-current control. This paper evaluates the passivity of the output impedance of the dual-loop voltage control, where two voltage regulators are compared, and it turns out that the non-passive region is inevitable in the high-frequency range, which may lead to harmonic instability. An output current feedforward control is then proposed to eliminate the non-passive region below the Nyquist frequency. Lastly, simulations and experimental results corroborate the analysis.
OriginalsprogEngelsk
TitelProceedings of 2019 IEEE Energy Conversion Congress and Exposition (ECCE)
Antal sider6
ForlagIEEE Press
Publikationsdatosep. 2019
Sider5424-5429
Artikelnummer8912790
ISBN (Elektronisk)978-1-7281-0395-2
DOI
StatusUdgivet - sep. 2019
Begivenhed2019 IEEE Energy Conversion Congress and Exposition (ECCE) - Baltimore, USA
Varighed: 29 sep. 20193 okt. 2019

Konference

Konference2019 IEEE Energy Conversion Congress and Exposition (ECCE)
LandUSA
By Baltimore
Periode29/09/201903/10/2019
NavnIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

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