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Grid Forming Converters in Renewable Energy Sources Dominated Power Grid: Control Strategy, Stability, Application, and Challenges
- Source :
- Journal of Modern Power Systems and Clean Energy, Vol 9, Iss 6, Pp 1239-1256 (2021)
- Publication Year :
- 2021
- Publisher :
- IEEE, 2021.
-
Abstract
- The renewable energy sources (RESs) dominated power grid is an envisaged infrastructure of the future power system, where the commonly used grid following (GFL) control for grid-tied converters suffers from lacking grid support capability, low stability, etc. Recently, emerging grid forming (GFM) control methods have been proposed to improve the dynamic performance and stability of grid-tied converters. This paper reviews existing GFM control methods for the grid-tied converters and compares them in terms of control structure, grid support capability, fault current limiting, and stability. Considering the impact of fault current limiting strategies, a comprehensive transient stability analysis is provided. In addition, this paper explores the typical applications of GFM converters, such as AC microgrid and offshore wind farm high-voltage direct current (OWF-HVDC) integration systems. Finally, the challenges to the GFM converters in future applications are discussed.
Details
- Language :
- English
- ISSN :
- 21965420
- Volume :
- 9
- Issue :
- 6
- Database :
- Directory of Open Access Journals
- Journal :
- Journal of Modern Power Systems and Clean Energy
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.71492d24e45cfbe70261e00214fab
- Document Type :
- article
- Full Text :
- https://doi.org/10.35833/MPCE.2021.000257