Robust Grid-Forming Control With Active Susceptance

被引：15

作者：

Zhao, Fangzhou ^{[1
]}

Wang, Xiongfei ^{[1
,2
]}

Zhou, Zichao ^{[1
]}

Sun, Yin ^{[3
]}

Harnefors, Lennart ^{[4
]}

Zhu, Tianhua ^{[1
]}

机构：

[1] Aalborg Univ, Dept Energy AAU Energy, DK-9220 Aalborg, Denmark

[2] KTH Royal Inst Technol, Div Elect Power & Energy Syst, S-11428 Stockholm, Sweden

[3] Shell Global Solut Int BV, NL-2596 HP The Hague, Netherlands

[4] ABB Corp Res, S-72226 Vasteras, Sweden

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2023年 / 38卷 / 03期

关键词：

Automatic voltage control; Gain; Power system stability; Phase locked loops; Robustness; Integrated circuit modeling; Damping; Grid-forming (GFM) control; robustness; stability; stiff grid; susceptance;

D O I：

10.1109/TPEL.2022.3223511

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 proposes a grid-forming control scheme that is robust against a wide range of short-circuit ratio (SCR) of the ac grid. The approach modifies the traditional power synchronization control by adding an active susceptance loop, which enhances system damping for high stability robustness and enables to use a standard voltage-oriented vector current control. The latter can avoid major software changes on a classical grid-following control structure. Both small-signal dynamics analysis and experimental results confirm the effectiveness of the approach from ultraweak (SCR = 1, X/R ratio = 7) to stiff (SCR = 38.5) grids.

引用

页码：2872 / 2877

页数：6

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