TY - GEN
T1 - Grid-forming converters
T2 - 12th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2020
AU - Rosso, Roberto
AU - Wang, Xiongfei
AU - Liserre, Marco
AU - Lu, Xiaonan
AU - Engelken, Soenke
N1 - Publisher Copyright:
© 2020 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/10
Y1 - 2020/10
N2 - In the last decade, the concept of grid-forming (GFM) converters has been introduced for microgrids and islanded power systems. Recently, the concept has been proposed for applications in wider and interconnected transmission networks, and several control structures have thus been developed, giving rise to discussions about the characteristics and the functionalities of such converters. In this paper, an overview of control schemes for GFM converters is provided. By identifying the main subsystems in respect to their functionalities, a generalized control structure is derived and different solutions for each of the main subsystems composing the controller are analyzed and compared. Subsequently, several selected open issues and challenges regarding GFM converters, i. e., angle stability, fault ride-through (FRT) capabilities, and transition between islanded to grid-connected modes are discussed. Perspectives on challenges and future trends are lastly shared.
AB - In the last decade, the concept of grid-forming (GFM) converters has been introduced for microgrids and islanded power systems. Recently, the concept has been proposed for applications in wider and interconnected transmission networks, and several control structures have thus been developed, giving rise to discussions about the characteristics and the functionalities of such converters. In this paper, an overview of control schemes for GFM converters is provided. By identifying the main subsystems in respect to their functionalities, a generalized control structure is derived and different solutions for each of the main subsystems composing the controller are analyzed and compared. Subsequently, several selected open issues and challenges regarding GFM converters, i. e., angle stability, fault ride-through (FRT) capabilities, and transition between islanded to grid-connected modes are discussed. Perspectives on challenges and future trends are lastly shared.
KW - control structure overview
KW - Grid-following converters
KW - Grid-forming converters
KW - power-synchronization
UR - http://www.scopus.com/inward/record.url?scp=85097139150&partnerID=8YFLogxK
U2 - 10.1109/ECCE44975.2020.9236211
DO - 10.1109/ECCE44975.2020.9236211
M3 - Article in proceeding
AN - SCOPUS:85097139150
T3 - IEEE Energy Conversion Congress and Exposition
SP - 4292
EP - 4299
BT - ECCE 2020 - IEEE Energy Conversion Congress and Exposition
PB - IEEE
Y2 - 11 October 2020 through 15 October 2020
ER -