Securing against malicious control of circuit breakers in electrical substations
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.
- Research Organization:
- ABB Inc., Cary, NC (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- OE0000674
- Assignee:
- ABB Inc. (Cary, NC)
- Patent Number(s):
- 10,079,486
- Application Number:
- 14/958,570
- OSTI ID:
- 1482810
- Country of Publication:
- United States
- Language:
- English
Intruders in the Grid
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journal | January 2012 |
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