Cascading Synchronization Instability in Multi-VSC Grid-Connected System

In this letter, a cascading synchronization instability phenomenon is reported in a multi-voltage-source-converter (VSC) grid. By adopting the equal area criterion, it is revealed that during the fault transient, there is static interaction that increases equivalent mechanical power for the original...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2022-07, Vol.37 (7), p.7572-7576
Main Authors: Fu, Xikun, Huang, Meng, Pan, Shangzhi, Zha, Xiaoming
Format: Article
Language:English
Subjects:
Converters
Dynamic stability
Equal area criterion
Grid-following (GFL) control
interaction
Power electronics
Power system dynamics
Power system stability
Stability analysis
Stability criteria
Synchronism
Synchronization
synchronization stability
Thermal stability
Transient analysis
voltage-source converter (VSC)
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this letter, a cascading synchronization instability phenomenon is reported in a multi-voltage-source-converter (VSC) grid. By adopting the equal area criterion, it is revealed that during the fault transient, there is static interaction that increases equivalent mechanical power for the original stable-operating VSC. Due to the fast power angle swing of the unstable VSC, there is nonnegligible dynamic interaction, which may decrease its synchronization stability margin. The effect of system parameters on synchronization stability is studied, and the simulation and experimental results verify the analysis.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2022.3153283