External Inertia Emulation to Facilitate Active-Power Limitation in Grid-Forming Converters
Artikel i vetenskaplig tidskrift, 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.
Phase locked loops
Impedance
Power system stability
frequency stability
Synchronization
low-inertia power system
inertia
current limiting
grid-connected converter
Grid-forming converter
Frequency conversion
Grid forming
Switches
rate of change of frequency
Författare
Paul Imgart
Chalmers, Elektroteknik, Elkraftteknik
Anant Narula
Chalmers, Elektroteknik, Elkraftteknik
Massimo Bongiorno
Svenskt centrum för el-energilagring och balansering
Chalmers, Elektroteknik, Elkraftteknik
Mebtu Bihonegn Beza
Chalmers, Elektroteknik, Elkraftteknik
Jan Svensson
Hitachi
IEEE Transactions on Industry Applications
0093-9994 (ISSN) 1939-9367 (eISSN)
Vol. 60 6 9145-9156Ämneskategorier (SSIF 2011)
Telekommunikation
Annan elektroteknik och elektronik
DOI
10.1109/TIA.2024.3443792