Series-Cascaded AC Microgrid Topology Integrating Non-Dispatchable Distributed Generation and Storage

Ullah, I, Teixeira, C, ACUNA, P and McGrath, B 2018, 'Series-Cascaded AC Microgrid Topology Integrating Non-Dispatchable Distributed Generation and Storage', in Proceedings of the IEEE 27th International Symposium on Industrial Electronics (ISIE 2018), Cairns, Australia, 13-15 June 2018, pp. 67-73.


Document type: Conference Paper
Collection: Conference Papers

Title Series-Cascaded AC Microgrid Topology Integrating Non-Dispatchable Distributed Generation and Storage
Author(s) Ullah, I
Teixeira, C
ACUNA, P
McGrath, B
Year 2018
Conference name ISIE 2018
Conference location Cairns, Australia
Conference dates 13-15 June 2018
Proceedings title Proceedings of the IEEE 27th International Symposium on Industrial Electronics (ISIE 2018)
Publisher IEEE
Place of publication United States
Start page 67
End page 73
Total pages 7
Abstract Series-cascaded microgrid topologies are attracting interest due to their flexibility of control and the reduced number of power conversion stages that are required for low power applications. Existing studies on series-cascaded microgrids have focused on combinations of either dispatchable or non-dispatchable DGs. However, a more practical scenario, in which dispatchable DGs, non-dispatchable DGs and storage elements are incorporated, has not been investigated to date. This hybrid structure poses several operational challenges, since the control frameworks for each microgrid source generally conflict with one another (i.e. droop control for dispatchable DGs, current regulation mode for non-dispatchable DGs and high level (dis)charging regimes for storage elements), which can adversely impact on the autonomous capability of each source. This paper investigates the operation of a hybrid series-cascaded microgrid incorporating diverse DG sources. The proposed topology and control strategies enable smooth operation of the non-dispatchable DGs and storage elements in accordance with their preferred operating modes without relying on a centralized control system. The performance of the proposed hybrid series-cascaded microgrid has been validated in simulation for a broad range of loading conditions.
Subjects Power and Energy Systems Engineering (excl. Renewable Power)
Industrial Electronics
Electrical and Electronic Engineering not elsewhere classified
DOI - identifier 10.1109/ISIE.2018.8433634
Copyright notice © 2018 IEEE
ISBN 9781538637050
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