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Large-Signal Stability Criteria in DC Power Grids With Distributed-Controlled Converters and Constant Power Loads.
- Source :
- IEEE Transactions on Smart Grid; Nov2020, Vol. 11 Issue 6, p5273-5287, 15p
- Publication Year :
- 2020
-
Abstract
- The increasing adoption of power electronic devices may lead to large disturbance and destabilization of future power systems. However, stability criteria are still an unsolved puzzle, since traditional small-signal stability analysis is not applicable to power electronics-enabled power systems when a large disturbance occurs, such as a fault, a pulse power load, or load switching. To address this issue, this paper presents for the first time the rigorous derivation of the sufficient criteria for large-signal stability in DC microgrids with distributed-controlled DC-DC power converters. A novel type of closed-loop converter controllers is designed and considered. Moreover, this paper is the first to prove that the well-known and frequently cited Brayton-Moser’s mixed potential theory (published in 1964) is incomplete. Case studies are carried out to illustrate the defects of Brayton-Moser’s mixed potential theory and verify the effectiveness of the proposed novel stability criteria. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19493053
- Volume :
- 11
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Smart Grid
- Publication Type :
- Academic Journal
- Accession number :
- 146600146
- Full Text :
- https://doi.org/10.1109/TSG.2020.2998041