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!

IEC TC 57 Just Published the IEC 61850-90-11 on Logics

IEC TC 57 Just Published the 90 pages of the Draft Technical Report IEC 61850-90-11 (57/2129/DTR)

Communication networks and systems for power utility automation –
Part 90-11: Methodologies for modelling of logics for IEC 61850 based applications

Voting closes 2019-10-04

"This Technical Report of IEC 61850 describes the methodologies for the modelling of logics for IEC 61850 based applications. ... the technical report

• Defines different application uses cases where all aspects to be considered are clearly identified.
• Describes the functional requirements and the intended engineering process
• Proposes a suitable solution in the context of IEC 61850 based on an investigation of the different possibilities to model the logic.
• Describes the impact on various parts of IEC 61850"

If, when and how this Technical Report will impact implementations of tools and IEDs is quite open. I remember that we had heated debates on the question how to deal with (internal) logics already some 10 years ago.

If you are planning to apply IEC 61850 - please DO NOT wait until this part 90-11 offers stable definitions ... IEC 61850 (as it is defined today) has enough to get started! ;-)

IEC 61850-90-11 - Modelling of Logics for IEC 61850 Based Applications

IEC TC 57 just published a 50+ page proposal for a very interesting topic:

57/2001/DC

Proposed IEC TR 61850-90-11, Communication networks and systems for power utility automation – Part 90-11: Methodologies for modelling of logics for IEC 61850 based applications

Comments to this draft are expected by 2018-07-27 at the latest.

This is likely the first time where application modelling (using a single configuration language!) integrates basic logic functions like AND, OR, Timer, ... including a Mapping of IEC 61850 data types and IEC 61131-3 / PLC Open XML data types.

The document introduces a couple of use cases describing mainly the control and monitoring of switchgears and electrical measurements.

Use case 1 – Busbar disconnector coupled in a double busbar arrangement
Use case 2 – Delayed breaker trip and blocking after 1st low gas pressure alarm
Use case 3 – Bay connected to busbar A
Use case 4 – Definite trip
Use case 5 – "Direct transfer open operation"
Use case 6 – Line outage detection in a breaker and a half scheme
Use case 7 – Unit trip logic
Use case 8 – Data quality management
Use case 9 – Switchgear control on the example of a busbar change-over

The modelling of logics could be of interest for many other applications.

New: Modelling of Logics for IEC 61850 Based Applications

IEC TC 57 has published a very interesting proposal (57/1814/DC; 49 pages) for modelling logics:

IEC TR 61850-90-11, Communication networks and systems for power utility automation –
Part 90-11: Methodologies for modelling of logics for IEC 61850 based applications

Comments are expected by 2017-02-03

This part of IEC 61850 describes the methodologies for the modelling of logics for IEC 61850 based applications in power utility automation. In particular, it describes the functional view of logic based on existing logical nodes for generic process automation and the operational modes of the logic. Furthermore it includes the specification of the standard language to be applied to specific the logic as well as the related data exchange format between engineering tools and their application as well as the mapping of logic elements to IEC 61850 data types.

The IEC 61131-3 PLC programming language is used to describe syntax of functions.

Example PLD (Programmable Logic Description): The PLD file contains the logic unit program code in PLC OpenXML format, representing the description of the logic programmable scheme that can then be mapped to a GAPC LN instance. Excerpt:



... more to come next year.