Voltage Stability and Transient Fault Current Limitation of Voltage-Controlled MMCs with L-Filters

Yingbiao Li, Jianbo Guo, Xiongfei Wang, Heng Wu, Bing Zhao, Shanshan Wang, Guanglu Wu

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

Abstrakt

This paper presents a design-oriented analysis on the voltage stability and the transient fault current limitation of voltage-controlled modular multilevel converter (MMC) with L-filters. First, a dual-loop voltage control based on the L-filter plant is systematically designed, where the upper limits of controller parameters for ensuring the small-signal stability are identified. Then, considering the transient fault current limitation during faults, the lower boundaries of the inner current controller parameters are derived. Within the region of allowed controller parameters, the optimization is further made to minimize the closed-loop output impedance of MMC, which enhances the robustness of MMC output voltage against the load current disturbance. Lastly, the time-domain simulations corroborate the theoretical analysis.
OriginalsprogEngelsk
Titel2019 4th IEEE Workshop on the Electronic Grid, eGRID 2019
ForlagIEEE
Publikationsdatonov. 2019
Artikelnummer9092721
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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