Hybrid isochronous-droop control for power management in AC microgrids

Ullah, I, Meegahapola, L, Holmes, G and Lim, C 2017, 'Hybrid isochronous-droop control for power management in AC microgrids', in Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2017), Cincinnati, United States, 1-5 October 2017, pp. 4085-4091.

Document type: Conference Paper
Collection: Conference Papers

Title Hybrid isochronous-droop control for power management in AC microgrids
Author(s) Ullah, I
Meegahapola, L
Holmes, G
Lim, C
Year 2017
Conference name ECCE 2017
Conference location Cincinnati, United States
Conference dates 1-5 October 2017
Proceedings title Proceedings of the IEEE Energy Conversion Congress and Exposition (ECCE 2017)
Publisher IEEE
Place of publication United States
Start page 4085
End page 4091
Total pages 7
Abstract The application of droop control as the sole mechanism for power management in microgrids is limited due to its difficulty in achieving operational economy and regulation of frequency. Consequentially, these needs are usually managed using higher level communication-based distributed or centralised control layers. To address these issues, this paper introduces an alternative approach for power management in AC microgrids, using a hybrid isochronous-droop (HID) control scheme that does not require communication. The proposed HID scheme is fully autonomous, and achieves a performance that is comparable with communication-based approaches. It enables generation sources to be scheduled in a defined priority, reduces the number of generation sources in operation for light load conditions, and improves the microgrid frequency load variation, all without requiring communication links. This enables efficient and reliable microgrid power management. Moreover, the proposed power management scheme is straightforward, easy to implement, and cost-effective, which are certainly features preferred by industry. The performance and robustness of the proposed scheme have been validated using an example microgrid operating under a variety of load conditions.
Subjects Power and Energy Systems Engineering (excl. Renewable Power)
Industrial Electronics
Electrical and Electronic Engineering not elsewhere classified
Keyword(s) Autonomous Power Management
Distributed Generation
Microgrids Control and Management
Distributed Control
Hierarchical Control
AC--DC--AC power conversion
DOI - identifier 10.1109/ECCE.2017.8096711
Copyright notice © 2017 IEEE
ISBN 9781509029983
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