Communication network topology management based on an associated electric grid topology

• US 9,362,746 B2
• Filed: 10/07/2011
• Issued: 06/07/2016
• Est. Priority Date: 10/07/2011
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Shaffer, Shmuel, Zha, Jun
• Primary Examiner(s): Salad, Abdullahi E
• Application Number:
  US13/269,069
• Publication Number:
  US 20130091258A1
• Time in Patent Office: 1,705 Days
• US Class Current: 1/1
• CPC Class Codes: H02J 2203/20 Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
• CPC Class Codes: H02J 3/00 Circuit arrangements for ac mains or ac distribution networks
• CPC Class Codes: Y02E 40/70 Smart grids as climate change mitigation technology in the energy generation sector
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 10/00 Systems supporting electrical power generation, transmission or distribution
• CPC Class Codes: Y04S 10/22 Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

In one embodiment, a computer determines a grid topology of an electric grid based on one or more electric grid configuration description files, and also determines a network topology of a computer network used to provide communication to grid devices of the electric grid. By assessing whether the network topology is configured to meet one or more communication requirements of the grid topology (e.g., initially and/or through monitoring for grid changes), the computer may trigger a corrective action (e.g., alarm or reconfiguration) in response to the network topology not being configured to meet the one or more communication requirements of the grid topology.

Claims

1. A computer-implemented method, comprising:

determining a grid topology of an electric grid based on one or more electric grid configuration description files;

determining a configuration of a network topology of a computer network used to provide communication to grid devices of the electric grid, the network topology made up of a plurality of network devices, wherein determining the configuration of the network topology of the computer network includes mapping the virtual local area network (VLAN) configurations within the computer network;

assessing whether the configuration of the network topology is configured to meet one or more communication requirements of the grid topology, wherein assessing includes overlaying the network topology on the grid topology and verifying that the VLAN configurations match the one or more communication requirements of the grid topology to prevent faults in the grid topology and the network topology; and

triggering an automatic reconfiguration of the network topology to meet the one or more communication requirements of the grid topology in response to the network topology not being configured to meet the one or more communication requirements of the grid topology.

2. The method as in claim 1, further comprising:

identifying a change in the grid topology; and

, in response,

reconfiguring the network topology to meet the one or more communication requirements of the grid topology based on the grid topology change.

3. The method as in claim 1, wherein the one or more communication requirements of the grid topology include:

providing communication between all the devices of the electric grid;

providing isolated communication within one or more specific subsets of all the devices of the electric grid;

preventing communication between two or more specific subsets of all the devices of the electric grid;

providing redundant communication between two or more specific subsets of all the devices of the electric grid;

or providing a specific Quality of Service (QoS) for the communication.

4. The method as in claim 1, wherein determining the network topology comprises:

discovering configurations of network devices already operating in the computer network.

5. The method as in claim 1, wherein determining the network topology comprises:

receiving one or more grid device configuration description files;

translating the one or more grid device configuration description files into corresponding network device commands; and

configuring the network topology using the network device commands.

6. The method as in claim 1, further comprising:

displaying a graphical user interface (GUI) that cooperatively illustrates the grid topology and network topology.

7. The method as in claim 6, wherein determining the network topology comprises:

receiving one or more graphically based configuration commands to configure one or more corresponding grid devices;

translating the one or more graphically based configuration commands into corresponding network device commands; and

configuring the network topology using the network device commands.

8. The method as in claim 1, further comprising:

utilizing the determined grid topology and network topology in an offline simulation.

9. The method as in claim 1, wherein the grid devices are intelligent end devices (IEDs);

capacitor banks;

grid controllers;

phasor measurement units (PMUs);

or sensors.

10. The method as in claim 1, wherein determining the grid topology is based on at least one of either a Common Information Model (CIM) model or a Substation Configuration Description Language (SCL) model, and wherein the electric grid configuration description files are Unified Modeling Language (UML) files.

11. An apparatus, comprising:

one or more network interfaces to communicate with a computer network used to provide communication to grid devices of an electric grid;

a processor coupled to the network interfaces and adapted to execute one or more processes; and

a memory configured to store process executable by the processor, the process when executed operable to;

determine a grid topology of the electric grid based on one or more electric grid configuration description files;

determine a configuration of a network topology of the computer network used to provide communication to the grid devices, the network topology made up of a plurality of network devices, wherein determining the configuration of the network topology of the computer network includes mapping the virtual local area network (VLAN) configurations within the computer network;

assess whether the configuration of the network topology is configured to meet one or more communication requirements of the grid topology, wherein assessing includes overlaying the network topology on the grid topology and verifying that the VLAN configurations match the one or more communication requirements of the grid topology to prevent faults in the grid topology and the network topology; and

trigger an automatic reconfiguration of the network topology to meet the one or more communication requirements of the grid topology in response to the network topology not being configured to meet the one or more communication requirements of the grid topology.

12. The apparatus as in claim 11, wherein the process when executed is further operable to:

identify a change in the grid topology; and

, in response,

reconfigure the network topology to meet the one or more communication requirements of the grid topology based on the grid topology change.

13. The apparatus as in claim 11, wherein the one or more communication requirements of the grid topology include providing communication between all the devices of the electric grid;

providing isolated communication within one or more specific subsets of all the devices of the electric grid;

preventing communication between two or more specific subsets of all the devices of the electric grid;

providing redundant communication between two or more specific subsets of all the devices of the electric grid;

or providing a specific Quality of Service (QoS) for the communication.

14. A tangible, non-transitory, computer-readable media having software encoded thereon, the software when executed by a processor operable to:

determine a grid topology of an electric grid based on one or more electric grid configuration description files;

determine a configuration of a network topology of a computer network used to provide communication to grid devices of the electric grid, the network topology made up of a plurality of network devices, wherein determining the configuration of the network topology of the computer network includes mapping the virtual local area network (VLAN) configurations within the computer network;

assess whether the configuration of the network topology is configured to meet one or more communication requirements of the grid topology, wherein assessing includes overlaying the network topology on the grid topology and verifying that the VLAN configurations match the one or more communication requirements of the grid topology to prevent faults in the grid topology and the network topology; and

trigger an automatic reconfiguration of the network topology to meet the one or more communication requirements of the grid topology in response to the network topology not being configured to meet the one or more communication requirements of the grid topology.

15. The computer-readable media as in claim 14, wherein the software when executed is further operable to:

identify a change in the grid topology; and

, in response,

reconfigure the network topology to meet the one or more communication requirements of the grid topology based on the grid topology change.

16. The computer-readable media as in claim 14, wherein the one or more communication requirements of the grid topology include providing communication between all the devices of the electric grid;

providing isolated communication within one or more specific subsets of all the devices of the electric grid;

preventing communication between two or more specific subsets of all the devices of the electric grid;

providing redundant communication between two or more specific subsets of all the devices of the electric grid;

or providing a specific Quality of Service (QoS) for the communication.

17. The computer-readable media as in claim 14, wherein the software when executed to determine the network topology is further operable to:

determine virtual local area network (VLAN) configurations within the computer network.

18. The computer-readable media as in claim 14, wherein the software when executed to determine the network topology is further operable to:

discover configurations of network devices already operating in the computer network.

19. The computer-readable media as in claim 14, wherein the software when executed to determine the network topology is further operable to:

receive one or more grid device configuration description files;

translate the one or more grid device configuration description files into corresponding network device commands; and

configure the network topology using the network device commands.

20. The computer-readable media as in claim 14, wherein the software when executed is further operable to:

display a graphical user interface (GUI) that cooperatively illustrates the grid topology and network topology.

21. The computer-readable media as in claim 14, wherein the software when executed to determine the network topology is further operable to:

receive one or more graphically based configuration commands to configure one or more corresponding grid devices;

translate the one or more graphically based configuration commands into corresponding network device commands; and

configure the network topology using the network device commands.