WG 18 - TC 57/WG 18

IEC 61850-7-410:2026 specifies the logical node classes for use in the domain of hydroelectric power stations, steam and gas turbines.
This IEC61850 domain information model standard utilizes the existing Logical Node (LN) classes defined in IEC 61850-7-4, Basic communication structure – Compatible logical node classes and data object classes where possible, while defining new and extended domain specific LN classes to provide the necessary data objects for application to functions and systems in the domain of hydroelectric power stations, steam and gas turbines. The domain information model includes the interface towards a central operator centre’s control functions.
The Scope of this document, related to steam and gas turbine specifics, is limited to overall control functions and generator and turbine control functions. For hydroelectric power, the scope includes the entire power station automation system.
Edition 3 is intended to form a basis for extensions in local implementations. Such extensions may be defined in profiles. Many of the Logical Nodes defined in this document are designed to be suitable for use in domains beyond the scope of hydro power plants and steam and gas turbines. A suggested structure of the Logical Nodes into packages for integration with other domains is provided in Annex G (informative), Migration of this document to the future edition of IEC 61850.
This third edition cancels and replaces the second edition published in 2012 and Amendment 1:2016. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) New concepts and constructs for modelling of large power generation;
b) Addition of new Logical Nodes to cover systems and details of the power generation domain previously not modelled in a sufficient way;
c) Review of existing Logical Nodes concerning structure, use of Common Data Classes and naming;
d) Fixes and improvements of some names and descriptions of Data Objects;
e) Improvements of the structure and enumerations within the Domain Logical Nodes;
f) Addition of new Logical Nodes with respect to maintenance and supervision functionality;
g) Updating of Logical Nodes for PSS functionality (LNs: APSS, APST and APSF) reflecting the updated PSS standard IEEE 421.5:2016;
h) Incorporation of Amendment 1, including among other things the Group E Logical Nodes;
i) Resolutions to all known UML Issues related to IEC 61850-7-410;
j) This 3rd edition is autogenerated from the UML file;
k) Upon publication the updated IEC 61850-7-410 NameSpace will be made available as a Code Component on the TC57 web page.
In the Edition 3 of this document, a new modelling approach is applied. In order to achieve greater efficiency and harmonization of the IEC 61850 information model by streamlining the Namespaces it is divided into, the structure of the latest revisions of the Namespaces related to the power generation domain, aims to:
– share common concepts, approaches, and models in the generation domains,
– increase the modularity of the model itself and enable its extension.
This edition hence introduces a new modeling approach, which is further explained in Clause 5. The pillars upon which the new approach is founded are as follows:
– a layered architecture for the power station model, in accordance with the control hierarchy concepts defined in IEC 60050-351-55;
– a comprehensive review of the models considering the approach outlined in IEC 61850-7-420:2021, aimed at harmonizing fundamental concepts in the power generation domain;
– a systematic alignment with the concepts outlined in IEC 61850-7-500:2017.
Specific aspects typical of the large power generation domain are also addressed in the present document. The relationship between concepts described in this document and the ones of related standards can be found in Annex B and Annex C.
In addition to this objective, Edition 3 provides c

IEC TR 61850-7-510:2021(E), which is a technical report, is intended to provide explanations on how to use the Logical Nodes defined in IEC 61850-7-410 as well as other documents in the IEC 61850 series to model complex control functions in power plants, including variable speed pumped storage power plants.
IEC 61850-7-410 introduced the general modelling concepts of IEC 61850 for power plants. It is however not obvious from the standard how the modelling concepts can be implemented in actual power plants.
This document explains how the data model and the concepts defined in the IEC 61850 standard can be applied in Hydro; both directly at the process control level, but also for data structuring and data exchange at a higher level. Application of the data model for Thermal is limited to power evacuation (in principle the extraction of the generated electrical power) and the prime mover shaft and bearing system. The interfaces of the fuel and steam valves are modelled for the purpose of process control.
Communication services, and description of the use of mappings of the IEC 61850 data model to different communication protocols, are outside the scope of this document.
This second edition cancels and replaces the first edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) Process modelling according to IEC 61850-6:2009, including IEC 61850-6:2009/AMD1:2018.
b) Examples of application of Reference Designation System together with the process modelling, in particular application of IEC/ISO 81346.
c) Description of modelling related to Steam- and Gas turbines.
d) Annexes with examples of application of SCL according to the examples in the Technical Report.
e) The dynamic exchange of values by using polling, GOOSE, Reporting or Sampled Values is no longer included in the Technical Report.

IEC 61850-7-410:2012 specifies the additional common data classes, logical nodes and data objects required for the use of IEC 61850 in a hydropower plant. The main changes with respect to the previous edition are as follows:
- the logical nodes in IEC 61850-7-410:2007 that were not specific to hydropower plants have been transferred to IEC 61850-7-4:2010;
- the definitions of logical nodes in this edition of IEC 61850-7-410 have been updated;
- most of the modelling examples and background information included in IEC 61850-7-410:2007 have been transferred to IEC/TR 61850-7-510.
This new edition of IEC 61850-7-410 includes additional general-purpose logical nodes that were not included in IEC 61850-7-4:2010, but are required in order to represent the complete control and monitoring system of a hydropower plant.

IEC 61850-7-410:2007 specifies the additional common data classes, logical nodes and data objects required for the use of IEC 61850 in a hydropower plant. The Logical Nodes and Data Objects (DO) defined in this part of IEC 61850 belong to the following fields of use:
- electrical functions;
- mechanical functions;
- hydrological functions;
- sensors.