Voltage-based Current Limitation Strategy to Preserve Grid-forming Properties Under Severe Grid Disturbances
Artikel i vetenskaplig tidskrift, 2023

Grid-forming (GFM) converters are a promising solution to enable large scale integration of renewable energy sources into the power system. However, due to the intrinsic voltage-source behaviour of GFM converters, current limitation during large grid disturbances is challenging. This paper presents a novel limitation strategy that preserves the GFM properties of the converter and at the same time effectively limits the converter current to the desired value. Through the limitation of the converter's internal voltage, stable operation even during faults and in case of large frequency disturbances in the grid is achieved. Experimental results show the effectiveness of the proposed current limitation strategy in case of various grid disturbances.

Power system stability

virtual inertia


Voltage control

Transient analysis

Frequency conversion

current limitation

Frequency control


Grid-forming converter

unbalanced faults

transient stability

grid-connected converter


Anant Narula

Chalmers, Elektroteknik, Elkraftteknik

Paul Imgart

Chalmers, Elektroteknik, Elkraftteknik

Massimo Bongiorno

Chalmers, Elektroteknik, Elkraftteknik

Mebtu Bihonegn Beza

Chalmers, Elektroteknik, Elkraftteknik

Jan Svensson

Hitachi Energy

And Jean Philippe Hasler

Hitachi Energy

IEEE Open Journal of Power Electronics

26441314 (eISSN)

Vol. In Press



Annan elektroteknik och elektronik



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