Proxy Communication Between Devices in an Electrical Power System

• US 20140280713A1
• Filed: 03/15/2013
• Published: 09/18/2014
• Est. Priority Date: 03/15/2013
• Status: Abandoned Application

• Current Assignee: Schweitzer Engineering Laboratories, Incorporated
• Original Assignee: Schweitzer Engineering Laboratories, Incorporated
• Inventors: Achanta, Shankar V., Dolezilek, David J., Day, Benjamin S., Gammel, Dennis, Bradetich, Ryan, Bennett, Jerry J., Ewing, Christopher
• Application Number:
  US13/841,564
• Publication Number:
  US 20140280713A1
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: H04L 67/60 Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols

Abstract

Systems and methods for exchanging messages between network devices and intelligent electronic devices of the electric power generation and delivery system are disclosed herein. In certain embodiments, a method performed by a network device for managing the exchange of messages between a first intelligent electronic device (IED) and a second IED included in an electrical power generation and delivery system may include receiving one or more messages configured according to a first communication protocol from the first IED. Based on information regarding one or more communication capabilities of the second IED, a second communication protocol may be determined. The message be reconfigured according to the second communication protocol to generate at least one reconfigured message. The reconfigured message may then be transmitted to the second IED.

Claims

1. A method for managing the exchange of messages between a first intelligent electronic device (IED) and a second IED included in an electrical power generation and delivery system performed by a network device comprising:

receiving, at a communications interface of the network device from the first IED, one or more messages configured according to a first communication protocol;

accessing information regarding one or more communication capabilities of the second IED;

determining, based on the accessed information, a second communication protocol;

reconfiguring the received one or more messages according to the second communication protocol to generate at least one reconfigured message; and

sending, via the communications interface, the at least one reconfigured message to the second IED.

2. The method of claim 1, wherein one of the first communication protocol and the second communication protocol is an IEC 61850 Generic Object Oriented Substation Events (GOOSE) protocol.

3. The method of claim 1, wherein one of the first communication protocol and the second communication protocol is a Distributed Network Protocol (DNP).

4. The method of claim 1, wherein one of the first communication protocol and the second communication protocol is a Mirrored Bits®

protocol.

5. The method of claim 1, wherein the first communication protocol is a bandwidth conservative protocol and the second communication protocol is a less-bandwidth conservative protocol.

6. The method of claim 1, wherein the first communication protocol is a less-bandwidth conservative protocol and the first communication protocol is a bandwidth conservative protocol.

7. The method of claim 1, wherein accessing information regarding one or one or more communication capabilities of the second IED comprises communicating with the second IED to determine that the second IED is configured to communicate using the second communication protocol.

8. The method of claim 1, wherein accessing information regarding one or more communication capabilities of the second IED comprises accessing a database storing information indicating that the second IED is configured to communicate using the second communication protocol.

9. The method of claim 1, wherein the one or more messages comprise a subscription identifier.

10. The method of claim 1, wherein the second communication protocol is the GOOSE protocol, wherein the at least one reconfigured message is a message of a message stream comprising multiple redundant copies of the at least one reconfigured message, and wherein the sending step further comprises sending the multiple redundant copies of the reconfigured message.

12. The non-transitory computer-readable storage medium of claim 1, wherein one of the first communication protocol and the second communication protocol is an IEC 61850 Generic Object Oriented Substation Events (GOOSE) protocol.

13. The non-transitory computer-readable storage medium of claim 1, wherein one of the first communication protocol and the second communication protocol is a Distributed Network Protocol (DNP).

14. The non-transitory computer-readable storage medium of claim 1, wherein one of the first communication protocol and the second communication protocol is a Mirrored Bits®

protocol.

15. The non-transitory computer-readable storage medium of claim 1, wherein the first communication protocol is a bandwidth conservative protocol and the second communication protocol is a less-bandwidth conservative protocol.

16. The non-transitory computer-readable storage medium of claim 1, wherein the first communication protocol is a less-bandwidth conservative protocol and the first communication protocol is a bandwidth conservative protocol.

17. The non-transitory computer-readable storage medium of claim 1, wherein accessing information regarding one or one or more communication capabilities of the second IED comprises communicating with the second IED to determine that the second IED is configured to communicate using the second communication protocol.

18. The non-transitory computer-readable storage medium of claim 1, wherein accessing information regarding one or more communication capabilities of the second IED comprises accessing a database storing information indicating that the second IED is configured to communicate using the second communication protocol.

19. The non-transitory computer-readable storage medium of claim 1, wherein the one or more messages comprise a subscription identifier.

20. The non-transitory computer-readable storage medium of claim 1, wherein the second communication protocol is the GOOSE protocol, the at least one reconfigured message is a message of a message stream comprising multiple redundant copies of the reconfigured message, and the sending step further comprises sending the multiple redundant copies of the reconfigured message.

11. A non-transitory computer-readable storage medium storing instructions that, when executed by a processor of a network device, cause the processor to:

receive, at a communications interface of the network device from a first intelligent electronic device (IED), one or more messages configured according to a first communication protocol;

access information regarding one or more communication capabilities of a second IED;

determine, based on the accessed information, a second communication protocol;

reconfigure the received one or more messages according to the second communication protocol to generate at least one reconfigured message.

send, via the communications interface, the at least one reconfigured message to the second IED.

21. A method performed by a network device for managing the exchange of messages between plurality of first IEDs and a second IED included in an electrical power generation and delivery system comprising:

receiving, at a communications interface of the network device from each of the plurality of first IEDs, first messages included in a first message stream, the first message stream comprising a plurality of first redundant messages;

reconfiguring at least one of the first messages from each of the plurality of first IEDs to generate a second message comprising information from at least one of the first messages from each of the plurality of first IEDs;

transmitting, from the communications interface of the network device to the second IED, the second message.

22. The method of claim 21, wherein the first messages comprise IEC 61850 Generic Object Oriented Substation Events (GOOSE) messages.

23. The method of claim 21, wherein the second message comprises a Distributed Network Protocol (DNP) message.

24. The method of claim 21, wherein the second message comprises a Mirrored Bits®

message.

25. The method of claim 21, wherein the second message is a message included in a second message stream comprising multiple redundant copies of the second message.

26. The method of claim 21, wherein the second message further comprises identification information associating a least a portion of the information included in the second message with at least one of the plurality of first IEDs.

27. The method of claim 21, wherein the identification information comprises a subscription identifier.

28. The method of claim 21, wherein the second message is configured according to a communication protocol selected based on information regarding one or more communication capabilities of the second IED.

29. The method of claim 28, wherein the method further comprises communicating with the second IED to determine that the second IED is configured to communicate using the communication protocol.

30. The method of claim 28, wherein the method further comprises accessing a database storing information indicating that the second IED is configured to communication using the second communication protocol.