Low-Frequency Resonances in Grid-Forming Converters: Causes and Damping Control

被引：2
作者：
Zhao, Fangzhou [1 ]
Zhu, Tianhua [1 ]
Li, Zejie [1 ]
Wang, Xiongfei [1 ,2 ]
机构：
[1] Aalborg Univ, Dept Energy, DK-9220 Aalborg, Denmark
[2] KTH Royal Inst Technol, Div Elect Power & Energy Syst, S-11428 Stockholm, Sweden
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2024年 / 39卷 / 11期
关键词：
Grid forming; Voltage control; Damping; Vectors; Resonant frequency; Power generation; Impedance; Control interactions; grid-forming control; stabilization; subsynchronous resonance (SSR); synchronous resonance (SR); VIRTUAL SYNCHRONOUS MACHINES; VOLTAGE-SOURCE; SYNCHRONIZATION; MITIGATION; PARAMETERS; DESIGN; SYSTEM;
D O I：
10.1109/TPEL.2024.3424296
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Grid-forming voltage-source converter (GFM-VSC) may experience low-frequency resonances, such as synchronous resonance (SR) and subsynchronous resonance (SSR), in the output power. This article provides a comprehensive study on the low-frequency resonances with GFM-VSC systems and damping control methods. First, the causes of SR and SSR are discussed, highlighting the impacts of control interactions on the resonances. Then, a systematic study of the recent advancements in stabilizing control methods for SR and SSR is presented. Specific physical insights into different damping effects on SR and SSR under weak and stiff grid conditions are revealed and summarized. Furthermore, experimental results comparing the dynamic performances of different damping controls are provided, corroborating the insights obtained in this study. Finally, perspectives on future research trends are shared.
引用
收藏
页码：14430 / 14447
页数：18
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