Synchronization Stability Enhancement of Grid-Following Converter under Inductive Power Grid

The loss of synchronization (LOS) is a main issue for dynamic behavior of grid-following converter (GFC) under inductive power grid. This letter reveals the underlying mechanism of insufficient damping or even negative damping during grid disturbance, and analyzes how the initial speed of angle-diff...

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Bibliographic Details
Published inIEEE transactions on energy conversion Vol. 38; no. 2; pp. 1 - 4
Main Authors Hu, Bin, Zhao, Chen, Sahoo, Subham, Wu, Chao, Chen, Liang, Nian, Heng, Blaabjerg, Frede
Format Journal Article
LanguageEnglish
Published New York IEEE 01.06.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Damping
Grid-following converter
inductive grid
Mathematical models
Phase locked loops
phase-locked loop
Power system stability
Stability
Steady-state
Synchronism
Synchronization
synchronization stability
Transient analysis
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Summary:The loss of synchronization (LOS) is a main issue for dynamic behavior of grid-following converter (GFC) under inductive power grid. This letter reveals the underlying mechanism of insufficient damping or even negative damping during grid disturbance, and analyzes how the initial speed of angle-difference between PLL output and grid voltage affects the synchronization stability. Then a synchronization stability enhancement scheme to add a positive damping and a reverse angular frequency during transient process is proposed in this letter.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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content type line 14
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2023.3265518