Quantitative and Intuitive VSG Transient Analysis with the Concept of Damping Area Approximation

The inherent large damping effect in virtual synchronous generator (VSG) control brings great challenges to its transient analysis. The recent studies mainly focus on qualitative explanation of damping effect, lacking an intuitive and quantitative assessment method. In this letter, the concept of da...

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Bibliographic Details
Published inIEEE transactions on smart grid Vol. 14; no. 3; p. 1
Main Authors Lei, Jintao, Xiang, Xin, Liu, Boxin, Li, Wuhua, He, Xiangning
Format Journal Article
LanguageEnglish
Published Piscataway IEEE 01.05.2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Approximation
Attraction
Damping
Damping Area Approximation
Domains
Evaluation
Frequency control
Mathematical analysis
Power system stability
Qualitative analysis
Quantitative
Stability analysis
Synchronous machines
Trajectory
Transient analysis
Transient Stability
Virtual Synchronous Generator
Visualization
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Summary:The inherent large damping effect in virtual synchronous generator (VSG) control brings great challenges to its transient analysis. The recent studies mainly focus on qualitative explanation of damping effect, lacking an intuitive and quantitative assessment method. In this letter, the concept of damping area is introduced to visualize the transient damping energy in a tailored phase portrait, which facilitates the physical and intuitive understanding of damping effects. On top of that, the damping area approximation method is further proposed to evaluate attraction domain quantitatively, and its conservativeness for VSG control is proved in theory and validated by experiments. The proposed method evaluates the impact of damping on attraction domain quantitatively and intuitively, and it may provide some insights into the VSG transient stability analysis.
ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2023.3256125