Cost-prioritized droop schemes for autonomous microgrids

Ullah, I, Loh, P and Blaabjerg, F 2013, 'Cost-prioritized droop schemes for autonomous microgrids', in Proceedings of the 5th IEEE Energy Conversion Congress and Exposition (ECCE 2013), Denver, Colorado, United States, 15-19 September 2013, pp. 1021-1025.

Document type: Conference Paper
Collection: Conference Papers

Title Cost-prioritized droop schemes for autonomous microgrids
Author(s) Ullah, I
Loh, P
Blaabjerg, F
Year 2013
Conference name ECCE 2013
Conference location Denver, Colorado, United States
Conference dates 15-19 September 2013
Proceedings title Proceedings of the 5th IEEE Energy Conversion Congress and Exposition (ECCE 2013)
Publisher IEEE
Place of publication United States
Start page 1021
End page 1025
Total pages 5
Abstract Droop schemes for parallel source control usually aims for proportional power sharing tuned in accordance to the source ratings. This works fine for sources with close similarity, but not really for an autonomous microgrid where different types of Distributed Generators (DGs) may be present without centralized optimal dispatch control. To better adapt to this non-uniformity, an alternative viewpoint based on reducing the Total Generation Cost (TGC including fuel cost, emission penalty and other operational concerns) of the microgrid is discussed, from which two new cost-prioritized droop schemes are developed. The schemes operate by tuning the dispatch priorities of the DGs and curve shapes of their resulting active power versus frequency plots. Their effective reduction of TGC has been verified through simulation.
Subjects Renewable Power and Energy Systems Engineering (excl. Solar Cells)
Industrial Electronics
Electrical and Electronic Engineering not elsewhere classified
Keyword(s) Active power
Autonomous microgrids
Distributed generator (DGs)
Generation cost
Optimal dispatch
Power sharing
Source control
DOI - identifier 10.1109/ECCE.2013.6646815
Copyright notice © 2013 IEEE
ISBN 9781479903375
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