Low Latency Attack Detection with Dynamic Watermarking for Grid-Connected Photovoltaic Systems

The low latency detection algorithm is developed by designing a generalized cumulative sum (CUSUM) detector with a dynamic watermark, which can detect cyberattacks even if the adversary has full knowledge of the system model. To evaluate the performance of the low latency detection algorithm, we propose to measure the stealthiness of cyberattacks by using the Kullback-Leibler (KL) divergence between the pre- and post-attack distributions of the test statistics. Simulation results demonstrate that the proposed algorithm can accurately detect cyberattacks with minimum delays.

Recommended citation: Y. Li, N. Lin, J. Wu, Y. Pan and Y. Zhao, "Low Latency Attack Detection with Dynamic Watermarking for Grid-Connected Photovoltaic Systems," in IEEE Journal of Emerging and Selected Topics in Industrial Electronics, doi: 10.1109/JESTIE.2023.3327051 https://ieeexplore.ieee.org/abstract/document/10304585