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Inverter-Angle-Induced Optimized Frequency Regulation Approach for AC–DC Microgrids Using Consensus-Based Identification.
- Source :
- IEEE Transactions on Industry Applications; Sep/Oct2022, Vol. 58 Issue 5, p6780-6792, 13p
- Publication Year :
- 2022
-
Abstract
- This article proposes a novel approach for mitigating grid frequency deviation during disturbances, utilizing the inverter angles for inverter-based resources connected with multiple dc microgrids. The proposed approach generates dynamic multiple-input–multiple-output system models of dc microgrids interfaced with inverters based on the alternating direction method of multipliers. These frequency-domain-based models generate input–output transfer functions relating to dispatchable distributed energy resource (DER) set points. These are then used as control inputs and grid frequency/individual point of common coupling (PCC) angles ($\delta$) for ac–dc multi-microgrid structures depending on their locations in the distribution network. A sensitivity relationship of powers with respect to change in global distribution frequency or individual angle $\delta$ for each section of ac–dc multi-microgrid is then used to optimally control the DER dynamics such as the frequency deviations are minimal. This approach is tested on commonly seen fault/dynamics and it was observed that the proposed architecture outperforms the state-of-the-art by more than 20% in mitigating frequency deviations. [ABSTRACT FROM AUTHOR]
- Subjects :
- MICROGRIDS
POWER resources
TRANSFER functions
ELECTRON tube grids
GRID computing
Subjects
Details
- Language :
- English
- ISSN :
- 00939994
- Volume :
- 58
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Industry Applications
- Publication Type :
- Academic Journal
- Accession number :
- 160651613
- Full Text :
- https://doi.org/10.1109/TIA.2022.3190202