IEC 61850 substation gateway
An IEC 61850 Network Control Center (NCC) server is provided at a gateway intelligent electronic device (IED) of a Substation Automation (SA) system. The NCC server serves, via the MMS/TCP/IP part of IEC 61850, process data from substation Intelligent Electronic Devices IEDs to a NCC. The NCC server uses functional names for gateway Logical Nodes (LN) corresponding to substation LNs. The functional names are devoid of any reference to a substation IED related name of the substation LNs, but can be automatically translated to substation IED related names in case of changing SA communication and substation IED architecture. Thereby, functional names as defined by the substation section within a SCD file of the SA system are used for the communication link between the gateway IED and the NCC.
1. A gateway intelligent electronic device (IED) for a Substation Automation (SA) system automating an electric power substation, the gateway IED comprising:
a processor and memory; and
a communication interface of the gateway intelligent electronic device (IED) configured to communicate according to IEC 61850, via a substation communication network, (i) with a substation IED hosting a substation Logical Node (LN) instance with a substation IED related name, and, via an Network Control Center (NCC) server of the gateway IED, (ii) with a NCC,
wherein the NCC server is configured to host a gateway LN instance corresponding to the substation LN instance and having an NCC related name based on a functional name that is devoid of any reference to the substation IED related name but automatically translatable into the substation IED related name in case of changing SA communication and substation IED architecture, wherein the functional name is retrieved from a substation section of a System Specification Description (SSD) file, the LN instances providing data objects relevant to NCC applications are identified from the SSD file of the SA system, a functional name for each identified LN is retrieved from the substation section of the SSD file, and the NCC related name being independent of the substation IED related name.
2. The gateway IED according to claim 1 , wherein the NCC related name of the gateway LN instance includes a hierarchically lowest functional level to which the substation LN instance is assigned as an LN prefix of the NCC related name.
3. The gateway IED according to claim 1 , wherein the gateway LN instance includes only data objects which are relevant to NCC applications.
4. The gateway IED according to claim 1 , wherein the NCC server is configured to host a proxy IED instance corresponding to the substation IED, and includes a LN providing supervisory data of the substation IED.
5. A method of configuring a gateway intelligent electronic device (IED) for communication according to IEC 61850, the method comprising:
providing the gateway IED comprising a processor and memory;
configuring the gateway IED to communicate according to IEC 61850, via a substation communication network of a Substation Automation (SA) system, with a substation Intelligent Electronic Device IED hosting a substation Logical Node LN instance with a substation IED related name;
configuring the gateway IED to communicate according to IEC 61850, via an Network Control Center (NCC) server of the gateway IED, with a NCC;
determining a functional name of the substation LN instance that is based on a functional name that is devoid of any reference to the substation IED related name but automatically translatable into the substation IED related name in case of changing SA communication and substation IED architecture, and the NCC related name being independent of the substation IED related name; and
configuring the NCC server by instantiating a gateway LN instance corresponding to the substation LN instance and having an NCC related name based on the functional name,
wherein the determining the functional name comprises, retrieving from a substation section of a System Specification Description (SSD) file of the SA system, a functional name for each identified LN, identifying, from the SSD file of the SA system, the LN instances providing data objects relevant to NCC applications, and retrieving, from the substation section of the SSD file, a functional name for each identified LN.
6. The method according to claim 5 , comprising:
identifying a hierarchically lowest functional level to which the substation LN instance is assigned; and
defining a LN prefix of the NCC related name of the gateway LN instance based thereupon.
7. The method according to claim 5 , comprising:
upon a change in the SA system, reconfiguring only an SA side of the gateway.
8. A gateway intelligent electronic device (IED) for a Substation Automation (SA) system automating an electric power substation, the gateway IED comprising:
a processor and memory; and
a communication interface of the gateway intelligent electronic device (IED) to communicate according to IEC 61850, via a substation communication network, (i) with a substation IED hosting a substation Logical Node (LN) instance with a substation IED related name, and, via an Network Control Center (NCC) server of the gateway IED, (ii) with a NCC,
wherein the NCC server is configured to host a gateway LN instance corresponding to the substation LN instance and having an NCC related name determined from a functional name without any knowledge about the substation IED name, wherein the functional name is automatically translatable into the substation IED related name in case of changing SA communication and substation IED architecture, wherein the NCC related name has no substation IED specific name parts, and wherein the functional name is retrieved from a substation section of a System Specification Description (SSD) file, the LN instances providing data objects relevant to NCC applications are identified from the SSD file of the SA system, a functional name for each identified LN is retrieved from the substation section of the SSD file, and the NCC related name being independent of the substation IED related name.