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arXiv · 2011.05829

Power Injection Attacks in Smart Distribution Grids with Photovoltaics

Martin Lindström·Hampei Sasahara·Xingkang He·Henrik Sandberg·Karl Henrik Johansson
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Abstract

In order to protect smart distribution grids from intrusions, it is important to understand possible risks and impacts of attacks. We study the worst-case attack strategy of a power injection attack against the physical layer of a smart distribution grid with a high penetration of photovoltaic resources. We derive both the worst attack signal and worst attack location: The worst attack signal is a step function which switches its sign at the final stage, and the worst attack location is the node with the largest impedance to the grid substation. Numerical examples on a European benchmark model verify the developed results. Finally, both theoretical and numerical results are used to discuss feasible defense strategies against power injection attacks.

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Martin Lindström, Hampei Sasahara, Xingkang He, Henrik Sandberg, Karl Henrik Johansson. 2020-11-11. Power Injection Attacks in Smart Distribution Grids with Photovoltaics. https://arxiv.org/abs/2011.05829

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