External Inertia Emulation to Facilitate Active-Power Limitation in Grid-Forming Converters
Journal article, 2024

The aim of this paper is to present a grid-forming (GFM) control strategy with a novel active-power loop (APL) structure facilitating limitation of active power while providing maximum available inertial support. This is achieved by decoupling the synchronization duties of the APL from the inertial support. The latter is provided by calculating the active-power reference through a dedicated inertia-emulation loop (IEL), which is connected in cascade with the APL. The effectiveness of the proposed method is demonstrated through laboratory experiments including frequency transients of varying size and unbalanced operating conditions.

low-inertia power system

current limiting

Frequency conversion

inertia

Switches

rate of change of frequency

Power system stability

grid-connected converter

Grid-forming converter

Grid forming

Phase locked loops

frequency stability

Impedance

Synchronization

Author

Paul Imgart

Chalmers, Electrical Engineering, Electric Power Engineering

Anant Narula

Chalmers, Electrical Engineering, Electric Power Engineering

Massimo Bongiorno

Chalmers, Electrical Engineering, Electric Power Engineering

Mebtu Bihonegn Beza

Chalmers, Electrical Engineering, Electric Power Engineering

Jan Svensson

Hitachi

IEEE Transactions on Industry Applications

0093-9994 (ISSN) 1939-9367 (eISSN)

Vol. 60 6 9145-9156

Subject Categories (SSIF 2011)

Telecommunications

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TIA.2024.3443792

More information

Latest update

3/17/2025