Model-Free Data Authentication for Cyber Security in Power Systems
Shengyuan Liu, Shutang You, He Yin, Zhenzhi Lin, Yilu Liu, Wenxuan Yao, Lakshmi Sundaresh
Abstract
With the development and wide deployment of measurement equipment, data can be automatically measured and visualized for situation awareness in power systems. However, the cyber security of power systems is also threated by data spoofing attacks. This letter proposed a measurement data source authentication (MDSA) algorithm based on feature extraction techniques including ensemble empirical mode decomposition (EEMD) and fast Fourier transform (FFT), and machine learning for real-time measurement data classification. Compared with previous work, the proposed algorithm can achieve higher accuracy of MDSA using a shorter window of data from closely located synchrophasor measurement sensors.