Sub-Synchronous Control Interaction in Grid-Forming VSCs with Droop Control

Yicheng Liao, Xiongfei Wang, Fangcheng Liu, Kai Xin, Yunfeng Liu

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Abstrakt

This paper analyzes the sub-synchronous control interaction of droop-controlled grid-forming voltage-source converters (VSCs). The complex-valued impedance model of the droop-controlled VSC in the stationary frame is proposed first, based on which the grid-VSC interaction is characterized. It is revealed that the sub-synchronous resonances can be induced in stiff grids, owing to the interactions of inner voltage control loop and the outer power control loop. Experimental tests corroborate the theoretical analysis.
OriginalsprogEngelsk
Titel2019 4th IEEE Workshop on the Electronic Grid, eGRID 2019
ForlagIEEE
Publikationsdatonov. 2019
Artikelnummer9092640
ISBN (Trykt)978-1-7281-5705-4
ISBN (Elektronisk)9781728157047
DOI
StatusUdgivet - nov. 2019
Begivenhed4th IEEE Workshop on the Electronic Grid, eGRID 2019 - Xiamen, Kina
Varighed: 11 nov. 201914 nov. 2019

Konference

Konference4th IEEE Workshop on the Electronic Grid, eGRID 2019
LandKina
ByXiamen
Periode11/11/201914/11/2019

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