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Voltage-based control of a smart transformer in a microgrid

Tine Vandoorn UGent, Jeroen De Kooning UGent, Bart Meersman UGent, Josep Guerrero and Lieven Vandevelde UGent (2013) IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. 60(4). p.1291-1305
abstract
For the islanded operation of a microgrid, several control strategies have been developed. For example, voltage-based droop control can be implemented for the active power control of the generators and the control of the active loads. One of the main advantages of a microgrid is that it can be implemented as a controllable entity within the electrical network. This requires the ability of the utility grid to control or influence the power exchange with the microgrid by communicating with only one unit. However, little research has been conducted on controlling the power transfer through the point of common coupling. This paper addresses this issue by introducing the concept of a smart transformer (ST) at the point of common coupling. This unit controls the active power exchange between a microgrid and the utility grid dependent on the state of both networks and other information communicated to the ST. To control the active power, the ST uses its taps that change the microgrid-side voltage at the PCC. This voltage-based control of the ST is compatible with the voltage-based droop control of the units in the microgrid that is used in this paper. Hence, the microgrid units can automatically respond to changes of ST set points and vice versa. Several simulation cases are included in this paper to demonstrate the feasibility of the ST concept.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
GRID INTEGRATION, CONTROL STRATEGY, POWER-GENERATION, PARALLEL INVERTERS, HIERARCHICAL CONTROL, DISTRIBUTION NETWORKS, OPERATION, SYSTEMS, MANAGEMENT, IMPEDANCE, Active load control, active power control, droop control, islanded microgrid, point of common coupling (PCC), voltage-source inverter (VSI)
journal title
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
IEEE Trans. Ind. Electron.
volume
60
issue
4
pages
1291 - 1305
Web of Science type
Article
Web of Science id
000311790200006
JCR category
ENGINEERING, ELECTRICAL & ELECTRONIC
JCR impact factor
6.5 (2013)
JCR rank
2/248 (2013)
JCR quartile
1 (2013)
ISSN
0278-0046
DOI
10.1109/TIE.2011.2165463
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1964882
handle
http://hdl.handle.net/1854/LU-1964882
date created
2011-12-12 11:07:02
date last changed
2013-07-04 14:00:17
@article{1964882,
  abstract     = {For the islanded operation of a microgrid, several control strategies have been developed. For example, voltage-based droop control can be implemented for the active power control of the generators and the control of the active loads. One of the main advantages of a microgrid is that it can be implemented as a controllable entity within the electrical network. This requires the ability of the utility grid to control or influence the power exchange with the microgrid by communicating with only one unit. However, little research has been conducted on controlling the power transfer through the point of common coupling. This paper addresses this issue by introducing the concept of a smart transformer (ST) at the point of common coupling. This unit controls the active power exchange between a microgrid and the utility grid dependent on the state of both networks and other information communicated to the ST. To control the active power, the ST uses its taps that change the microgrid-side voltage at the PCC. This voltage-based control of the ST is compatible with the voltage-based droop control of the units in the microgrid that is used in this paper. Hence, the microgrid units can automatically respond to changes of ST set points and vice versa. Several simulation cases are included in this paper to demonstrate the feasibility of the ST concept.},
  author       = {Vandoorn, Tine and De Kooning, Jeroen and Meersman, Bart and Guerrero, Josep and Vandevelde, Lieven},
  issn         = {0278-0046},
  journal      = {IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS},
  keyword      = {GRID INTEGRATION,CONTROL STRATEGY,POWER-GENERATION,PARALLEL INVERTERS,HIERARCHICAL CONTROL,DISTRIBUTION NETWORKS,OPERATION,SYSTEMS,MANAGEMENT,IMPEDANCE,Active load control,active power control,droop control,islanded microgrid,point of common coupling (PCC),voltage-source inverter (VSI)},
  language     = {eng},
  number       = {4},
  pages        = {1291--1305},
  title        = {Voltage-based control of a smart transformer in a microgrid},
  url          = {http://dx.doi.org/10.1109/TIE.2011.2165463},
  volume       = {60},
  year         = {2013},
}

Chicago
Vandoorn, Tine, Jeroen De Kooning, Bart Meersman, Josep Guerrero, and Lieven Vandevelde. 2013. “Voltage-based Control of a Smart Transformer in a Microgrid.” Ieee Transactions on Industrial Electronics 60 (4): 1291–1305.
APA
Vandoorn, T., De Kooning, J., Meersman, B., Guerrero, J., & Vandevelde, L. (2013). Voltage-based control of a smart transformer in a microgrid. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 60(4), 1291–1305.
Vancouver
1.
Vandoorn T, De Kooning J, Meersman B, Guerrero J, Vandevelde L. Voltage-based control of a smart transformer in a microgrid. IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS. 2013;60(4):1291–305.
MLA
Vandoorn, Tine, Jeroen De Kooning, Bart Meersman, et al. “Voltage-based Control of a Smart Transformer in a Microgrid.” IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 60.4 (2013): 1291–1305. Print.