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.

Frequency conversion

Synchronization

Power system stability

Grid-forming converter

grid-connected converter

Phase locked loops

inertia

Switches

current limiting

frequency stability

low-inertia power system

Impedance

rate of change of frequency

Grid forming

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 Energy Research Hitachi Energy

IEEE Transactions on Industry Applications

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

Vol. In Press

Subject Categories

Telecommunications

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TIA.2024.3443792

More information

Latest update

8/30/2024