Abstract
The possibility of increasing penetration level of grid-interactive microgrids (MGs) has gained a great interest over the past decade. Thus, it is critical to investigate the
performance of the MGs under voltage sags, since it may induce instability to the power grid. Negative sequence droop control based voltage support strategy has been proposed to aid MGs riding through three phase asymmetrical voltage sags. However, since the line impedance from each converter to the point of common coupling (PCC) is not identical, both positive sequence and negative sequence output current of the converters cannot be equally shared if no extra current balancing loop is added. Accordingly, a dynamic consensus algorithm (DCA) based negative/positive sequence current sharing scheme is proposed in this paper. Finally, a lab-scale AC microgrid was designed and tested in the lab to validate the feasibility of the proposed control method.
performance of the MGs under voltage sags, since it may induce instability to the power grid. Negative sequence droop control based voltage support strategy has been proposed to aid MGs riding through three phase asymmetrical voltage sags. However, since the line impedance from each converter to the point of common coupling (PCC) is not identical, both positive sequence and negative sequence output current of the converters cannot be equally shared if no extra current balancing loop is added. Accordingly, a dynamic consensus algorithm (DCA) based negative/positive sequence current sharing scheme is proposed in this paper. Finally, a lab-scale AC microgrid was designed and tested in the lab to validate the feasibility of the proposed control method.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of IECON 2016: The 42nd Annual Conference of IEEE Industrial Electronics Society |
| Number of pages | 6 |
| Publisher | IEEE Press |
| Publication date | Oct 2016 |
| Pages | 3660 - 3665 |
| ISBN (Electronic) | 978-1-5090-3474-1 |
| DOIs | |
| Publication status | Published - Oct 2016 |
| Event | 42nd Conference of the Industrial Electronics Society, IECON 2016: 42nd Annual Conference of the IEEE Industrial Electronics Society - Palazzo dei Congressi, Florence, Italy Duration: 24 Oct 2016 → 27 Oct 2016 http://www.iecon2016.org/?jjj=1471434927195 http://www.iecon2016.org/ |
Conference
| Conference | 42nd Conference of the Industrial Electronics Society, IECON 2016 |
|---|---|
| Location | Palazzo dei Congressi |
| Country/Territory | Italy |
| City | Florence |
| Period | 24/10/2016 → 27/10/2016 |
| Sponsor | IEEE Industrial Electronics Society (IES), Institute of Electrical and Electronics Engineers (IEEE) |
| Internet address |
Keywords
- Grid-interactive microgrid
- Consensus algorithm
- Hierarchical control
- Low-voltage ridethrough