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MODEL-BASED, DYNAMIC FLOW DEFINITION FOR DETERMINISTIC-NETWORKS IN ELECTRICAL SUBSTATIONS

IP.com Disclosure Number: IPCOM000247605D
Publication Date: 2016-Sep-19
Document File: 4 page(s) / 244K

Publishing Venue

The IP.com Prior Art Database

Related People

Maik Seewald: AUTHOR [+2]

Abstract

Presented herein are techniques for dynamic, model-based flow definitions to configure deterministic-networks based on time sensitive networking (TSN) in electrical substations. Domain specific data derived from extended models, such as IEC 61850, is used to dynamically configure the virtual network topology as well as the TSN flows. The configuration of the network elements is based on a TSN network controller and an underlying IEC 61850 data model. No manual network configuration is needed; all information is derived from using, or parsing, the substation configuration files. Furthermore, the configuration/re-configuration can be completely dynamic, triggered by every change in an underlying IEC 61850 data model.

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MODEL-BASED, DYNAMIC FLOW DEFINITION FOR DETERMINISTIC-

NETWORKS IN ELECTRICAL SUBSTATIONS

AUTHORS:

Maik Seewald

Rudy Klecka

CISCO SYSTEMS, INC.

ABSTRACT

    Presented herein are techniques for dynamic, model-based flow definitions to configure deterministic-networks based on time sensitive networking (TSN) in electrical substations. Domain specific data derived from extended models, such as IEC 61850, is used to dynamically configure the virtual network topology as well as the TSN flows. The configuration of the network elements is based on a TSN network controller and an underlying IEC 61850 data model. No manual network configuration is needed; all information is derived from using, or parsing, the substation configuration files. Furthermore, the configuration/re-configuration can be completely dynamic, triggered by every change in an underlying IEC 61850 data model.

DETAILED DESCRIPTION

    Embedded control and protection devices, such as Intelligent Electronic Devices (IEDs), and network elements, such as switches and routers, developed and/or engineered based on the IEC 61850 standard are used in electrical substations to fulfill critical protection and control functions. The IEC 61850 architecture is based on an extensive object oriented data model that contains all relevant information to configure the devices and to engineer the virtual network topology and time sensitive networking (TSN) flows considering the workflow and the processes within an electrical substation. This includes public/subscriber information for two IEC 61850 services: Generic Object Oriented Substation Event (GOOSE) and Sampled Values (SV). GOOSE and SV messages are used to connect devices within or between electrical substations in order to exchange protection and control messages. Furthermore, the data model contains network specific

Copyright 2016 Cisco Systems, Inc.

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configuration data such as Internet Protocol (IP) addresses, Media Access Control (MAC) addresses, and Virtual Local Area Network (VLAN) and port configuration information.

    Manual configurations of network elements often involve a control engineer who defines the network topology as well as addresses, VLANs and other network settings. Described below is a dynamic approach to automate the configuration and engineering process. Also described herein is a direct and dynamic coupling between substation engineering tools and network configuration based on a controller.

    Figure 1 below illustrates an architecture for dynamic, model-based flow definitions to configure deterministic-networks. The architecture comprises three basic components: (1) the engineering tool (ET) that contains and processes the substation configuration data model derived from the configuration files containing IEC 61850 system and device information (typically Substation Configuration Language (SCL) based data); (2) the network controller; and (3) the network elements, including the IEDs in an electrical subst...