Stability Analysis and Improvement of Three-Phase Grid-Connected Power Converters with Virtual Inertia Control

Jingyang Fang, Pengfeng Lin, Hongchang Li, Yi Tang, Yongheng Yang

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

Abstrakt

The lack of inertia issue challenges the frequency control and stability of small-scale modern power systems. To alleviate adverse effects from inertia reduction, three-phase grid-connected power converters are increasingly being used to provide virtual inertia upon system demands. This can be achieved by directly linking the grid frequency and voltage references of DC-link capacitors/ultracapacitors. However, this paper reveals that the virtual inertia control may possibly induce instabilities to power converters under weak grid conditions, which is caused by the coupling between the d- and q-axis as well as the inherent differential operator introduced by the virtual inertia control. To tackle the instability issue, this paper proposes a modified virtual inertia control to mitigate the differential effect. Experimental verifications are provided, which demonstrate the effectiveness of the proposed control in stabilizing three-phase grid-connected power converters for inertia emulation even when connected to weak grids.
OriginalsprogEngelsk
TitelProceedings of IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019)
Antal sider6
ForlagIEEE Press
Publikationsdatomaj 2019
Sider2400-2405
DOI
StatusUdgivet - maj 2019
Begivenhed34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, USA
Varighed: 17 mar. 201921 mar. 2019

Konference

Konference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
LandUSA
ByAnaheim
Periode17/03/201921/03/2019
SponsorIEEE Industry Applications Society (IAS), IEEE Power Electronics Society (PELS), Power Sources Manufacturers Association (PSMA)
NavnI E E E Applied Power Electronics Conference and Exposition. Conference Proceedings
ISSN1048-2334

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  • Citationsformater

    Fang, J., Lin, P., Li, H., Tang, Y., & Yang, Y. (2019). Stability Analysis and Improvement of Three-Phase Grid-Connected Power Converters with Virtual Inertia Control. I Proceedings of IEEE Annual Applied Power Electronics Conference and Exposition (APEC 2019) (s. 2400-2405). IEEE Press. I E E E Applied Power Electronics Conference and Exposition. Conference Proceedings https://doi.org/10.1109/APEC.2019.8721845