Overcoming the Impact of Clock Drifts on Power Sharing for Microgrids

Kolluri, R, Mareels, I, Teixeira, C, Tong, S, Alpcan, T, Brazil, M, de Hoog, J and Thomas, D 2018, 'Overcoming the Impact of Clock Drifts on Power Sharing for Microgrids', in Proceedings of the 2018 IEEE Power & Energy Society General Meeting (PESGM), Portland, Oregon, United States, 5-10 August 2018, pp. 1-5.


Document type: Conference Paper
Collection: Conference Papers

Title Overcoming the Impact of Clock Drifts on Power Sharing for Microgrids
Author(s) Kolluri, R
Mareels, I
Teixeira, C
Tong, S
Alpcan, T
Brazil, M
de Hoog, J
Thomas, D
Year 2018
Conference name Re-Imagining the Electric Grid
Conference location Portland, Oregon, United States
Conference dates 5-10 August 2018
Proceedings title Proceedings of the 2018 IEEE Power & Energy Society General Meeting (PESGM)
Publisher IEEE
Place of publication United States
Start page 1
End page 5
Total pages 5
Abstract The stability and power sharing properties of droop-controlled inverter-based microgrids are adversely affected by model uncertainty, and inverter parameter drifts. Even when frequency stability may be guaranteed, power sharing remains sensitive to clock/frequency drifts. A novel coordinating control law is proposed to overcome these issues. It guarantees both stability and power sharing in the presence of parameter uncertainty, including frequency drift. The new control law uses sparse inter-node communications. Conditions to achieve (local) stability with power sharing are presented. It is also shown that our power sharing control is robust to reasonable clock drifts and very small droop coefficients. Simulation and experimental results illustrate the performance of the proposed control law under clock drift scenarios.
Subjects Power and Energy Systems Engineering (excl. Renewable Power)
Keyword(s) Power sharing
autonomous microgrid
distributed control
droop control
stability
DOI - identifier 10.1109/PESGM.2018.8586450
Copyright notice © 2018 IEEE
ISBN 9781538677032
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