Just published: IEC 61850-7-420 Basic Communication Structure – Distributed Energy Resources And Distribution Automation Logical Lodes

IEC TC 57 just published one of the most crucial parts of the standard series IEC 61850:

This second edition of the 548 pages long bilingual standard (EN/FR) has been developed over a period of - I guess more than 10 years - taking into account the experience with IEC 61850 in general and with distributed power systems.

Now it is time to implement and use the standard in conjunction with the other core parts like IEC 61850-6, 7-1, -7-2, -7-3, and 7-4.

Click HERE for details on IEC 61850-7-420.

Click HERE for the preview.

Please note that the syntax of the object models is available for free download:

Click HERE for the download of the light name space document [zip, 30 KB] 

Excerpt of the light name space:

Sample code for Battery Monitoring LN with Cell Voltage Lo Alarm and Hi Alarm:

Note that the description (Semantic) is only available in the Full name space document that comes with the standard when you buy the standard.

It is recommended to purchase the standard in case you want to study the full content and to figure out the benefit ...!

Four Additional Light Namespace Documents For IEC 61850 Series Are Available For Free Access

 Please note that the following four namespace documents have been published the other day:

Click HERE to access these four and the other 22 name space documents.

1. IEC 61850-90-9: Object models for electrical energy storage
2. IEC 61850-90-4: Network engineering guidelines for substations
3. IEC 61850-90-11: Methodologies for modelling of logics for IEC 61850 based applications
4. IEC 61850-7-420: Communications systems for distributed energy resources (DER) - Logical nodes

Enjoy!

Part 7-420 - Distributed energy resources and distribution automation logical nodes

After tremendous work on the revision and extension of the IEC 61850-7-420 Edition 1, IEC TC 57 just published the 366 page committee draft IEC 61850-7-420 ED2:

57/1997/CD

Communication networks and systems for power utility automation – Part 7-420: Basic communication structure – Distributed energy resources and distribution automation logical nodes

Commenting period closes 2018-08-17

Excerpt from the introduction:

"Increasing numbers of DER (distributed energy resources) systems are being interconnected to electric power systems throughout the world. As DER technology evolves and as the impact of dispersed generation on distribution power systems becomes a growing challenge – and opportunity – nations worldwide are recognizing the economic, social, and environmental benefits of integrating DER technology within their electric infrastructure.
The manufacturers of DER devices are facing the age-old issues of what communication standards and protocols to provide to their customers for monitoring and controlling DER devices, in particular when they are interconnected with the electric power system. In the past, DER manufacturers developed their own proprietary ...

This document addresses the IEC 61850 information modelling for DER, although some types and aspects of DER information models have been developed or are being developed separately through technical reports before they are added to this international standard DER model. These consist of the following:
• IEC 61850-90-6: Use of IEC 61850 for Distribution Automation Systems
• IEC 61850-90-8: Object model for electric mobility
• IEC 61850-90-9: Use of IEC 61850 for Electrical Storage Systems
• IEC 61850-90-15: DER Grid Integration using IEC 61850 "

This document is one of the crucial parts for the application of IEC 61850 in distributed power systems.