Cross-coupling effects of voltage control and active power control on small-signal stability of virtual synchronous generator

Jingzhe Xu, Weihua Zhou, Behrooz Bahrani

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

Abstract

Inverter-based renewable energy resources, as a critical response to the net-zero energy transition, have been displacing conventional synchronous generation. However, this displacement has increased the grid's vulnerability to disturbances. The virtual synchronous generator (VSG) is a potential solution for grid strengthening. However, previous research has shown that VSG can also experience instability under certain grid conditions, which have been partially addressed in previous work. This paper aims to fill the gaps in these works by exploring the fundamental causation of instability through an updated comprehensive state-space modeling, parameter scanning, and consequent states participation factor analysis. It has been found that both voltage and active power controllers contribute to low-frequency instabilities in most cases. Furthermore, the two controllers are tightly coupled, although parameterising may improve decoupling.

Original languageEnglish
Title of host publicationICPE 2023-ECCE Asia - 11th International Conference on Power Electronics - ECCE Asia
Subtitle of host publicationGreen World with Power Electronics
EditorsSeung-Ho Song
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages2486-2491
Number of pages6
ISBN (Electronic)9788957083505
ISBN (Print)9798350336207
DOIs
Publication statusPublished - 2023
EventInternational Conference on Power Electronics, ECCE Asia 2023 - Jeju, Korea, South
Duration: 22 May 202325 May 2023
Conference number: 11th
https://ieeexplore.ieee.org/xpl/conhome/10213399/proceeding (Proceedings)
https://www.icpe-conf.org/ (Website)

Conference

ConferenceInternational Conference on Power Electronics, ECCE Asia 2023
Abbreviated titleICPE 2023-ECCE Asia
Country/TerritoryKorea, South
CityJeju
Period22/05/2325/05/23
Internet address

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