Enhanced TVI for Grid Forming VSC under Unbalanced Faults

被引：11

作者：

Zubiaga, Markel ^{[1
]}

Cardozo, Carmen ^{[2
]}

Prevost, Thibault ^{[2
]}

Sanchez-Ruiz, Alain ^{[1
,3
]}

Olea, Eneko ^{[1
]}

Izurza, Pedro ^{[1
]}

Khan, Siam Hasan ^{[1
]}

Arza, Joseba ^{[1
]}

机构：

[1] Ingeteam R&D Europe SL, Zamudio 48170, Spain

[2] Reseau Transport Elect RTE, F-92073 Paris, France

[3] Univ Basque Country, Elect Technol Dept, UPV EHU, Bilbao 48013, Spain

来源：

ENERGIES | 2021年 / 14卷 / 19期

关键词：

grid forming; inverter-based generation; power quality; LVRT; unbalanced faults; CURRENT LIMITATION;

D O I：

10.3390/en14196168

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

With an increasing capacity of inverter-based generation and with a 100% renewable energy power system on the horizon, grid forming converters have the potential to become the prevalent control mode in the grid. Thus, the correct performance of these devices is going to be crucial for system stability and security of supply. Most research related to the grid-forming control is focused on normal operating conditions, although significant effort has been devoted to current limitation strategies to ensure Low Voltage Ride Through (LVRT) capability. However, most contributions usually consider only balanced faults. This paper, proposes a new current limiting method based on the well-known threshold virtual impedance (TVI) that keeps the voltage source behaviour associated to the grid forming (GFM) capability, even when the current limit is reached, while reducing the voltage unbalance according to user-defined settings.

引用

页数：19

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