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Flexible Transfer Converters Enabling Autonomous Control and Power Dispatch of Microgrids.
- Source :
- IEEE Transactions on Power Electronics; Nov2022, Vol. 37 Issue 11, p13767-13781, 15p
- Publication Year :
- 2022
-
Abstract
- For grid-connected or interconnected microgrids, the transition to an autonomous and decentralized architecture was hampered by two perplexing issues: how to guarantee voltage-supporting capacity, while fully and controllably utilizing local power generation, and how to switch between islanded and grid-connected modes flexibly and seamlessly. Through a combination of benefits of interlinking converters and switches, the flexible transfer converters (FTCs), positioned at the interfaces between the utility grid and microgrids, are offered as a solution in this article. The basic concepts and classifications of the FTC are first presented, and a general-purpose FTC and a universal control strategy for distributed generations are then proposed as an example, which contribute to appropriate power dispatch and flexible mode transfer in a communication-free design, leading to a fully autonomous microgrid. Simple and economic operation rules, as well as high interoperability with existing assets, makes this solution promising for distributed microgrid applications. Further, generalized small-signal models of the target system are derived for stability analysis and parameter design. Finally, comprehensive case studies in simulations and experiments are provided to validate its effectiveness. [ABSTRACT FROM AUTHOR]
- Subjects :
- MICROGRIDS
DISTRIBUTED power generation
VOLTAGE control
Subjects
Details
- Language :
- English
- ISSN :
- 08858993
- Volume :
- 37
- Issue :
- 11
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 158186466
- Full Text :
- https://doi.org/10.1109/TPEL.2022.3180562