Thursday, January 28, 2016

IEC Committee Draft (CD) 61850-7-420 Ed. 2.0 just published

IEC TC 57 has just published the 57/1655/CD:

IEC CD 61850-7-420 Ed. 2.0: Communication networks and systems for power utility automation -
Part 7-420: Basic communication structure - Distributed energy resources logical nodes

Commenting closes 2016-04-08.

Attention is drawn to document 57/1658/DC which is circulated in parallel and which reflects a draft IEC TR 61850-7-520 and which contains the main guidelines on how to use the data models contained in the present CD.
Since both documents are closely linked IEC national committees are invited to develop their comments in parallel on the present CD and on 57/1658/DC.

The major technical changes with regard to the previous edition are as follows:

  • Corrections and clarifications according to information letter "IEC 61850-technical issues by the IEC TC 57” (see document 57/963/INF, 2008-07-18);
  • Extensions regarding IEC 61850-90-7 (object models for converters in distributed energy resources (DER) systems);
  • Some logical nodes in IEC 61850-7-420:2009 that were not specific to distributed energy resources have been transferred to IEC 61850-7-4 Ed. 2.1 and have been removed from this edition of IEC 61850-7-420 (see also Annex A);
  • The definitions of logical nodes in this edition of IEC 61850-7-420 have been updated using the table format introduced in IEC 61850-7-4 Ed. 2.1;
  • Most of the modelling examples and background information that was included in IEC 61850-7-420:2009 has been transferred to IEC 61850-7-520
This CD is not available publicly as a CDV. The CDV may be available later this year. 

Stay tuned to this blog.

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