Saturday, October 15, 2016

Wind Energy Generation Systems: Edition 2 Drafts of IEC 61400-25 Published

IEC TC 88 has published recently the following draft documents for the edition 2 of the corresponding parts:

IEC 61400-25-1: Wind energy generation systems -
Part 25-1: Communications for monitoring and control of wind power plants -
Overall description of principles and models

IEC 61400-25-4: Wind energy generation systems -
Part 25-4: Communications for monitoring and control of wind power plants -
Mapping to communication profile

IEC 61400-25-5: Wind energy generation systems -
Part 25-5: Communications for monitoring and control of wind power plants -
Conformance testing

IEC 61400-25-6: Wind power generation systems -
Part 25-6: Communications for monitoring and control of wind power plants -
Logical node classes and data classes for condition monitoring

Note 1: The title of TC 88 was changed in 2015 from Wind turbines to Wind energy generation systems
Note 2: Please note the tissue database for the whole standards series:

Major Changes in these documents:

IEC 61400-25-1:
Changes compared to Edition 1:
• General harmonization of text and overview models with the other parts of the IEC
61400-25 series
• Harmonization of definitions in other related standards
The users of IEC 61400-25 have formed a community, USE61400-25. For further information

IEC 61400-25-4:
A lot of modifications have been implemented in order to harmonize with other parts of the series IEC 61400-25 as well as with IEC 61850. Note that a mapping to OPC UA is not part of this
second edition of IEC 61400-25-4

IEC 61400-25-5:
The scope of revision includes:
• Harmonization with test cases in IEC61850-10 Edition 2.0
• The use of SCL in the conformance testing process is out of the scope for Ed2, but will be considered for Edition 3.
• Reduction of overlap between standards and simplification by increased referencing to the IEC 61850 standard series
The following main revisions have been made compared to Edition 1.0:
• The complete document has been restructured in order to match the structure of IEC 61850-10 Edition 2.0.
• All test cases applying SCL files are still not a part of the present document as the SCL specifications for wind power domain are still pending to be published.

IEC 61400-25-6:
This edition includes the following significant technical changes with respect to the previous
a) Major restructuring of the data model to accommodate needed flexibility.
b) UFF58 format is no longer used.
c) Access to data is now using the standard reporting and logging functions.
d) Recommendations for creating data names to accommodate needed flexibility have been

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