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DOE OSTI · 1892733

Securing against malicious control of circuit breakers in electrical substations

Hong, Junho·Nuqui, Reynaldo
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Abstract

An example method for detecting and mitigating attacks on electric power substations comprises detecting a command to open or close a circuit breaker in the electric power substation. A modified extended substation model for the electric power substation is generated, based on the detected command and based on measurements in substation, where the modified extended substation model is a power flow model for the substation and for one or more directly connected neighboring substations. A power flow analysis is performed, using the modified extended substation model, to generate a predicted voltage for each of a plurality of nodes in the substation and in the one or more directly connected neighboring substations. Each predicted voltage is compared to a corresponding allowable voltage range, and execution of the command is blocked in response to determining that one or more of the voltages is outside the corresponding allowable voltage range.

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97 MATHEMATICS AND COMPUTING

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Hong, Junho, Nuqui, Reynaldo. 2022-03-22. Securing against malicious control of circuit breakers in electrical substations. https://www.osti.gov/biblio/1892733

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