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Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control

Tine Vandoorn UGent, Bart Meersman UGent, Jeroen De Kooning UGent and Lieven Vandevelde UGent (2013) IEEE TRANSACTIONS ON POWER SYSTEMS. 28(3). p.2545-2553
abstract
Microgrids are able to provide a coordinated integration of the increasing share of distributed generation (DG) units in the network. The primary control of the DG units is generally performed by droop-based control algorithms that avoid communication. The voltage-based droop (VBD) control is developed for islanded low-voltage microgrids with a high share of renewable energy sources. With VBD control, both dispatchable and less-dispatchable units will contribute in the power sharing and balancing. The priority for power changes is automatically set dependent on the terminal voltages. In this way, the renewables change their output power in more extreme voltage conditions compared to the dispatchable units, hence, only when necessary for the reliability of the network. This facilitates the integration of renewable units and improves the reliability of the network. This paper focusses on modifying the VBD control strategy to enable a smooth transition between the islanded and the grid-connected mode of the microgrid. The VBD control can operate in both modes. Therefore, for islanding, no specific measures are required. To reconnect the microgrid to the utility network, the modified VBD control synchronizes the voltage of a specified DG unit with the utility voltage. It is shown that this synchronization procedure significantly limits the switching transient and enables a smooth mode transfer.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
AC, microgrid, OPERATION, GENERATION, SYSTEMS, INVERTERS, POINT TRACKING ALGORITHMS, synchronization, Distributed generation, droop control
journal title
IEEE TRANSACTIONS ON POWER SYSTEMS
IEEE PWRS
volume
28
issue
3
pages
2545 - 2553
Web of Science type
Article
Web of Science id
000322989900050
JCR category
ENGINEERING, ELECTRICAL & ELECTRONIC
JCR impact factor
3.53 (2013)
JCR rank
20/248 (2013)
JCR quartile
1 (2013)
ISSN
0885-8950
DOI
10.1109/TPWRS.2012.2226481
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
3033647
handle
http://hdl.handle.net/1854/LU-3033647
date created
2012-10-24 10:01:39
date last changed
2013-10-28 10:16:29
@article{3033647,
  abstract     = {Microgrids are able to provide a coordinated integration of the increasing share of distributed generation (DG) units in the network. The primary control of the DG units is generally performed by droop-based control algorithms that avoid communication. The voltage-based droop (VBD) control is developed for islanded low-voltage microgrids with a high share of renewable energy sources. With VBD control, both dispatchable and less-dispatchable units will contribute in the power sharing and balancing. The priority for power changes is automatically set dependent on the terminal voltages. In this way, the renewables change their output power in more extreme voltage conditions compared to the dispatchable units, hence, only when necessary for the reliability of the network. This facilitates the integration of renewable units and improves the reliability of the network. This paper focusses on modifying the VBD control strategy to enable a smooth transition between the islanded and the grid-connected mode of the microgrid. The VBD control can operate in both modes. Therefore, for islanding, no specific measures are required. To reconnect the microgrid to the utility network, the modified VBD control synchronizes the voltage of a specified DG unit with the utility voltage. It is shown that this synchronization procedure significantly limits the switching transient and enables a smooth mode transfer.},
  author       = {Vandoorn, Tine and Meersman, Bart and De Kooning, Jeroen and Vandevelde, Lieven},
  issn         = {0885-8950},
  journal      = {IEEE TRANSACTIONS ON POWER SYSTEMS},
  keyword      = {AC,microgrid,OPERATION,GENERATION,SYSTEMS,INVERTERS,POINT TRACKING ALGORITHMS,synchronization,Distributed generation,droop control},
  language     = {eng},
  number       = {3},
  pages        = {2545--2553},
  title        = {Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control},
  url          = {http://dx.doi.org/10.1109/TPWRS.2012.2226481},
  volume       = {28},
  year         = {2013},
}

Chicago
Vandoorn, Tine, Bart Meersman, Jeroen De Kooning, and Lieven Vandevelde. 2013. “Transition from Islanded to Grid-connected Mode of Microgrids with Voltage-based Droop Control.” Ieee Transactions on Power Systems 28 (3): 2545–2553.
APA
Vandoorn, T., Meersman, B., De Kooning, J., & Vandevelde, L. (2013). Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control. IEEE TRANSACTIONS ON POWER SYSTEMS, 28(3), 2545–2553.
Vancouver
1.
Vandoorn T, Meersman B, De Kooning J, Vandevelde L. Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control. IEEE TRANSACTIONS ON POWER SYSTEMS. 2013;28(3):2545–53.
MLA
Vandoorn, Tine, Bart Meersman, Jeroen De Kooning, et al. “Transition from Islanded to Grid-connected Mode of Microgrids with Voltage-based Droop Control.” IEEE TRANSACTIONS ON POWER SYSTEMS 28.3 (2013): 2545–2553. Print.