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Quantitative and Intuitive VSG Transient Analysis With the Concept of Damping Area Approximation
IEEE Transactions on Smart Grid ( IF 8.6 ) Pub Date : 2023-03-13 , DOI: 10.1109/tsg.2023.3256125
Jintao Lei 1 , Xin Xiang 1 , Boxin Liu 1 , Wuhua Li 1 , Xiangning He 1
Affiliation  

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.

中文翻译:

利用阻尼区近似概念进行定量直观的 VSG 瞬态分析

虚拟同步发电机(VSG)控制中固有的大阻尼效应为其暂态分析带来了巨大挑战。近年来的研究主要集中在阻尼效应的定性解释上,缺乏直观、定量的评价方法。在这封信中,引入了阻尼区域的概念,以在定制的相图中可视化瞬态阻尼能量,这有助于对阻尼效应进行物理和直观的理解。在此基础上,进一步提出了阻尼面积近似法来定量评估吸引域,并从理论上证明了其对VSG控制的保守性并通过实验验证。所提出的方法定量直观地评估了阻尼对吸引域的影响,
更新日期:2023-03-13
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