Secondary Control Strategies for Frequency Restoration in Islanded Microgrids with Consideration of Communication Delays
Author
dc.contributor.author
Ahumada Sanhueza, Constanza Andrea
Author
dc.contributor.author
Cárdenas Dobson, Jesús
Author
dc.contributor.author
Sáez Hueichapán, Doris
Author
dc.contributor.author
Guerrero Zapata, Josep
Admission date
dc.date.accessioned
2016-09-29T20:01:28Z
Available date
dc.date.available
2016-09-29T20:01:28Z
Publication date
dc.date.issued
2016
Cita de ítem
dc.identifier.citation
IEEE Transactions on Smart Grid, 7(3), 1430 - 1441 May 2016
es_ES
Identifier
dc.identifier.other
10.1109/TSG.2015.2461190
Identifier
dc.identifier.uri
https://repositorio.uchile.cl/handle/2250/140589
Abstract
dc.description.abstract
One of the well-known methods to share active and reactive power in microgrids (MGs) is droop control. A disadvantage of this method is that in steady state the frequency of the MG deviates from the nominal value and has to be restored using a secondary control system (SCS). The signal obtained at the output of the SCS is transmitted using a communication channel to the generation sources in the MG, correcting the frequency. However, communication channels are prone to time delays, which should be considered in the design of the SCS; otherwise, the operation of the MG could be compromised. In this paper, two new SCSs control schemes are discussed to deal with this issue: 1) a model predictive controller (MPC); and 2) a Smith predictor-based controller. The performance of both control methodologies are compared with that obtained using a conventional proportional integral-based SCS using simulation work. Stability analysis based on small signal models and participation factors is also realized. It is concluded that in terms of robustness, the MPC has better performance.
es_ES
Patrocinador
dc.description.sponsorship
FONDECYT
1140775
Advanced Center for Electrical and Electronic Engineering
Basal Project
FB0008
Fondequip
EQM130058