Transient Synchronization Stability Analysis and Enhancement Control for Power Self-Synchronization Control Converters

被引：1

作者：

Shi, Huabo ^{[1
]}

Shi, Peng ^{[1
]}

Zhou, Bo ^{[1
]}

Wang, Xi ^{[1
]}

Zeng, Xueyang ^{[1
]}

Ma, Junpeng ^{[2
]}

机构：

[1] State Grid Sichuan Elect Power Co, Elect Power Res Inst, Chengdu 610000, Peoples R China

[2] Sichuan Univ, Coll Elect Engn, Chengdu 610000, Peoples R China

来源：

ELECTRONICS | 2024年 / 13卷 / 17期

关键词：

power self-synchronization control; transient stability enhancement; voltage source converters; GRID-FORMING CONVERTERS;

D O I：

10.3390/electronics13173416

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Conventional grid-forming control often destabilizes voltage source converters (VSCs) in stiff grids, and transient synchronization instability will occur in the grid fault condition. Therefore, power self-synchronization control (PSSC) is first introduced for enhancing the small-signal stability of grid-forming control in the case of a short circuit ratio ranging from 1 to infinity. Meanwhile, the transient synchronization instability for the grid-forming converter with PSSC in the grid fault condition is analyzed by the phase portrait, and a transient stability enhancement control (TSEC) scheme is combined with a PSSC-based VSC, which can efficiently eliminate the risk of losing synchronization in the arbitrary SCR. Finally, experimental results are provided to confirm the theoretical analysis.

引用

页数：15

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