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arXiv · 1908.05843

Secure State Estimation and Control for Cyber Security of AC Microgrids

Dariush Fooladivanda·Qie Hu·Young Hwan Chang·Peter Sauer
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Abstract

A timely, accurate, and secure dynamic state estimation is needed for reliable monitoring and efficient control of microgrids. The synchrophasor technology enables us to obtain synchronized measurements in real-time and to develop dynamic state estimators for real-time monitoring and control of microgrids. In this study, we consider an AC microgrid comprising several synchronous generators and inverter-interface power supplies, and focus on securely estimating the dynamic states of the microgrid from a set of corrupted data. We propose a dynamic state estimator which enables the microgrid operator to reconstruct the dynamic states of the microgrid from a set of corrupted data. Finally, we consider an AC microgrid with the same topology as the IEEE 33-bus distribution system, and numerically show that the proposed secure estimation algorithm can accurately reconstruct the attack signals.

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Dariush Fooladivanda, Qie Hu, Young Hwan Chang, Peter Sauer. 2019-08-16. Secure State Estimation and Control for Cyber Security of AC Microgrids. https://arxiv.org/abs/1908.05843

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