Autonomous Power Sharing Schemes for Series-Cascaded DC Microgrid

Ullah, I and Teixeira, C 2018, 'Autonomous Power Sharing Schemes for Series-Cascaded DC Microgrid', in Proceedings of the IEEE 27th International Symposium on Industrial Electronics (ISIE 2017), Cairns, Australia, 13-15 June 2018, pp. 482-488.


Document type: Conference Paper
Collection: Conference Papers

Title Autonomous Power Sharing Schemes for Series-Cascaded DC Microgrid
Author(s) Ullah, I
Teixeira, C
Year 2018
Conference name ISIE 2017
Conference location Cairns, Australia
Conference dates 13-15 June 2018
Proceedings title Proceedings of the IEEE 27th International Symposium on Industrial Electronics (ISIE 2017)
Publisher IEEE
Place of publication United States
Start page 482
End page 488
Total pages 7
Abstract This paper presents a new DC microgrid topology, formed by series-cascaded dispatchable distributed generations (DGs), which offers the potential benefits of reduced power conversion stages and control flexibility. Two main power sharing schemes are introduced for control and management of series-cascaded microgrid: a simple voltage-based scheme for accurate proportional power sharing among the cascaded DGs, and a cost-weighted droop scheme for decentralized economic operation. Moreover, in contrast to the existing approaches for parallel-connected DGs based microgrids, the proposed control strategies operate autonomously and maintain the microgrid voltage to a nominal value under different load operating conditions. The expected performance of the proposed schemes has been extensively verified in simulation for various load operating scenarios.
Subjects Industrial Electronics
Electrical and Electronic Engineering not elsewhere classified
Power and Energy Systems Engineering (excl. Renewable Power)
Keyword(s) distributed generation
droop control
DC microgrid
decentralized control
series-cascaded converters
DOI - identifier 10.1109/ISIE.2018.8433632
Copyright notice © 2018 IEEE
ISBN 9781538637050
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