Differences in Transient Stability Between Grid Forming and Grid Following in Synchronization Mechanism

Ziqian Zhang*, Robert Schürhuber, Lothar Fickert, Katrin Friedl, Guochu Chen, Yongming Zhang, Feng Wang

*Corresponding author for this work

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

Abstract

As the share of inverters in the power system increases, the stability of inverters has an increasing impact on the reliable operation of power electronics dominated power systems. Since the synchronization mechanism plays a leading role in the dynamic performance of the inverter, its stability is one of the keys for the stable operation of the power system. The Grid Forming inverters have emerged in recent years, is completely different from the traditional Grid Following inverter in terms of synchronization mechanism. This paper will analyze and compare the differences in transient stability between the synchronization mechanisms of the two concepts of inverters through large-signal modelling and phase-portrait method. The analysis results show that the Grid Forming inverter is more robust in synchronization mechanism.
Original languageEnglish
Title of host publicationCIRED International Conference on Electricity Distribution
Publication statusPublished - 22 Sep 2021
EventCIRED 26th International Conference & Exhibition on Electricity Distribution: CIRED 2021 - Online, Virtuell, Switzerland
Duration: 20 Sep 202123 Sep 2021
https://www.cired2021.org/
https://www.cired2021.org

Conference

ConferenceCIRED 26th International Conference & Exhibition on Electricity Distribution
Abbreviated titleCIRED 2021
Country/TerritorySwitzerland
CityVirtuell
Period20/09/2123/09/21
Internet address

Keywords

  • Grid Forming
  • Grid Following
  • transient stability
  • phase portrait
  • domain of attraction

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