Grid-Forming Converters: Control Approaches, Grid-Synchronization, and Future Trends—A Review

Roberto Rosso, Xiongfei Wang, Marco Liserre, Xiaonan Lu, Soenke Engelken

Research output: Contribution to journalJournal articleResearchpeer-review

3 Downloads (Pure)

Abstract

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 use in wider interconnected transmission networks, and several control structures have thus been developed, giving rise to discussions about the expected behaviour 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 from islanded to grid connected mode are discussed. Perspectives on challenges and future trends are lastly shared.
Original languageEnglish
JournalIEEE Open Journal of Industry Applications
Volume2
Pages (from-to)93-109
DOIs
Publication statusPublished - 2021

Fingerprint

Dive into the research topics of 'Grid-Forming Converters: Control Approaches, Grid-Synchronization, and Future Trends—A Review'. Together they form a unique fingerprint.

Cite this