Abstract
This paper proposes a secondary distributed control strategy to achieve the sharing of unbalanced currents between 3-leg power converters, operating under droop control, in a three-phase three-wire isolated Microgrid (MG). To this end, a modified Q-E droop controller is used, where new control actions are defined to achieve the unbalanced currents sharing amongst the converters. These control actions are generated, in the secondary control level, by a consensus-based algorithm, where the consensus variables correspond to the single-phase reactive powers of the converters. This paper shows that sharing negative sequence current components amongst the power converters can be managed by achieving a consensus (per phase) of single-phase reactive powers. Extensive simulations demonstrate the excellent performance of the proposed controller.
| Original language | English |
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| Title of host publication | 2021 6th IEEE Workshop on the Electronic Grid, eGRID 2021 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781665449793 |
| DOIs | |
| State | Published - 2021 |
| Externally published | Yes |
| Event | 6th IEEE Workshop on the Electronic Grid, eGRID 2021 - New Orleans, United States Duration: 8 Nov 2021 → 10 Nov 2021 |
Publication series
| Name | 2021 6th IEEE Workshop on the Electronic Grid, eGRID 2021 |
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Conference
| Conference | 6th IEEE Workshop on the Electronic Grid, eGRID 2021 |
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| Country/Territory | United States |
| City | New Orleans |
| Period | 8/11/21 → 10/11/21 |
Bibliographical note
Publisher Copyright:© 2021 IEEE.
Keywords
- Consensus protocol
- Distributed control
- Imbalance Sharing
- Isolated Microgrid
- Single-Phase Reactive Power