Distributed watermarking for secure control of microgrids under replay attacks

The problem of replay attacks in the communication network between Distributed Generation Units (DGUs) of a DC microgrid is examined. The DGUs are regulated through a hierarchical control architecture, and are networked to achieve secondary control objectives. Following analysis of the detectability of replay attacks by a distributed monitoring scheme previously proposed, the need for a watermarking signal is identified. Hence, conditions are given on the watermark in order to guarantee detection of replay attacks, and such a signal is designed. Simulations are then presented to demonstrate the effectiveness of the technique.


Published in:
IFAC-PapersOnLine, 51, 23, 182-187
Presented at:
7th IFAC Workshop on Distributed Estimation and Control in Networked Systems (NECSYS), Groningen, The Netherlands, August 27-28, 2018
Year:
2018
Publisher:
Elsevier
Laboratories:




 Record created 2019-09-02, last modified 2019-09-03

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