Adjustable Virtual Impedance via Anti-windup Method for Enhancing Transient Stability and Grid-Forming Capability Under Current Limiting Conditions

被引：0
|
作者：
Kim, Seongyeon [1 ]
Kim, Ki-Hyun [1 ]
Cui, Shenghui [2 ,3 ]
Jung, Jae-Jung [1 ]
机构：
[1] Kyungpook Natl Univ, Sch Elect & Elect Engn, Daegu, South Korea
[2] Seoul Natl Univ, Dept Elect & Comp Engn, Seoul 08826, South Korea
[3] Seoul Natl Univ, SNU Elect Power Res Inst, Seoul 08826, South Korea
来源：
IEEE TRANSACTIONS ON POWER ELECTRONICS | 2025年 / 40卷 / 05期
关键词：
Impedance; Power system stability; Grid forming; Voltage control; Limiting; Transient analysis; Circuit stability; Current limiters; Circuit faults; Stability criteria; Anti-windup; current limitation; grid forming (GFM); transient stability; virtual impedance;
D O I：
10.1109/TPEL.2025.3525649
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：
This letter presents a novel method to enhance the transient stability and grid forming (GFM) capability under current limiting conditions. The proposed method employs dual-loop vector voltage control with a back-calculation anti-windup strategy, using adjustable gain to modify the reactance-to-resistance ratio of the equivalent virtual impedance. The method ensures seamless operation during transitions between normal and abnormal grid conditions while significantly improving transient stability and GFM capability. Theoretical analysis has been validated through 2-kVA-scale experiments, demonstrating the effectiveness of the proposed method.
引用
收藏
页码：6423 / 6428
页数：6
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