期刊
IEEE TRANSACTIONS ON SMART GRID
卷 14, 期 3, 页码 2477-2480出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSG.2023.3256125
关键词
Damping; Transient analysis; Stability analysis; Power system stability; Visualization; Trajectory; Frequency control; Virtual synchronous generator; transient stability; damping area approximation; visualization; quantitative
In this study, a physical and intuitive assessment method is proposed to evaluate the damping effect in virtual synchronous generator (VSG) control. The concept of damping area is introduced to provide a visual representation of transient damping energy. Additionally, an approximation method is developed to quantitatively evaluate the attraction domain and its conservativeness for VSG control is validated.
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.
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