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Title: Securing against malicious control of circuit breakers in electrical substations

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.

Inventors:
;
Issue Date:
Research Org.:
ABB Inc., Cary, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1482810
Patent Number(s):
10,079,486
Application Number:
14/958,570
Assignee:
ABB Inc. (Cary, NC)
DOE Contract Number:  
OE0000674
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Dec 03
Country of Publication:
United States
Language:
English
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION

Citation Formats

Hong, Junho, and Nuqui, Reynaldo. Securing against malicious control of circuit breakers in electrical substations. United States: N. p., 2018. Web.
Hong, Junho, & Nuqui, Reynaldo. Securing against malicious control of circuit breakers in electrical substations. United States.
Hong, Junho, and Nuqui, Reynaldo. Tue . "Securing against malicious control of circuit breakers in electrical substations". United States. https://www.osti.gov/servlets/purl/1482810.
@article{osti_1482810,
title = {Securing against malicious control of circuit breakers in electrical substations},
author = {Hong, Junho and Nuqui, Reynaldo},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {9}
}

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Works referenced in this record:

Intruders in the Grid
journal, January 2012

  • Liu, Chen-Ching; Stefanov, Alexandru; Hong, Junho
  • IEEE Power and Energy Magazine, Vol. 10, Issue 1, p. 58-66
  • DOI: 10.1109/MPE.2011.943114