Secured control of circuit breakers in a digital substation
Methods and systems for secured control of circuit breakers in an electric power substation against undesired direct operation. Consequences of a malicious action are prevented or mitigated using a validation approach that either blocks the command or ensures a negligible effect on system operation. An example method, suitable for implementation in a monitoring device in an electric power substation, includes receiving a command to open or close a circuit breaker. In response, one or more state parameters for the electric power network that comprises the substation are then predicted, the predicted state parameters reflecting an operating state for the network under the assumption that the received command is executed. The method further comprises comparing the predicted one or more state parameters to corresponding operational limits. Execution of the command is then blocked, in response to determining that one or more of the predicted state parameters violate the corresponding operational limits.
- Research Organization:
- ABB Inc., Cary, NC (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- OE0000674
- Assignee:
- ABB Inc. (Carey, NC)
- Patent Number(s):
- 10,365,676
- Application Number:
- 14/700,918
- OSTI ID:
- 1568652
- Country of Publication:
- United States
- Language:
- English
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Securing against malicious control of circuit breakers in electrical substations
Collaborative Defense of Transmission and Distribution Protection and Control Devices Against Cyber Attacks (CODEF) DE-OE0000674. ABB Inc. Final Scientific/Technical Report