SIST EN 61968-1:2013

SLOVENSKI STANDARD
SIST EN 61968-1:2013
01-marec-2013
1DGRPHãþD
SIST EN 61968-1:2004
Združevanje aplikacij v elektropodjetjih - Sistemski vmesniki za upravljanje
distribucije - 1. del: Arhitektura vmesnikov in splošne zahteve (IEC 61968-1:2012)
Application integration at electric utilities - System interfaces for distribution management
- Part 1: Interface architecture and general requirements
Integration von Anwendungen in Anlagen der Elektrizitätsversorgung -
Systemschnittstellen für Netzführung - Teil 1: Schnittstellenarchitektur und allgemeine
Anforderungen
Intégration d'applications pour les services électriques - Interfaces système pour la
gestion de distribution - Partie 1: Architecture des interfaces et recommandations
générales
Ta slovenski standard je istoveten z: EN 61968-1:2013
ICS:
29.240.30 Krmilna oprema za Control equipment for electric
elektroenergetske sisteme power systems
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
SIST EN 61968-1:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61968-1:2013

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SIST EN 61968-1:2013

EUROPEAN STANDARD
EN 61968-1

NORME EUROPÉENNE
January 2013
EUROPÄISCHE NORM

ICS 33.200 Supersedes EN 61968-1:2004


English version


Application integration at electric utilities -
System interfaces for distribution management -
Part 1: Interface architecture and general recommendations
(IEC 61968-1:2012)


Intégration d'applications pour les services Integration von Anwendungen in Anlagen
électriques - der Elektrizitätsversorgung -
Interfaces système pour la gestion de Systemschnittstellen für Netzführung -
distribution - Teil 1: Schnittstellenarchitektur und
Partie 1: Architecture des interfaces et allgemeine Anforderungen
recommandations générales (IEC 61968-1:2012)
(CEI 61968-1:2012)





This European Standard was approved by CENELEC on 2012-12-04. CENELEC members are bound to comply
with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the CEN-CENELEC Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels


© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61968-1:2013 E

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SIST EN 61968-1:2013
EN 61968-1:2013 - 2 -
Foreword
The text of document 57/1272/FDIS, future edition 2 of IEC 61968-1, prepared by IEC TC 57 "Power
systems management and associated information exchange" was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN 61968-1:2013.

The following dates are fixed:
• latest date by which the document has (dop) 2013-09-04
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-12-04
• latest date by which the national
standards conflicting with the
document have to be withdrawn

This document supersedes EN 61968-1:2004.
EN 61968-1:2013 includes the following significant technical changes with respect to EN 61968-1:2004:
st
a) update of IRM table which has been out of date since the 1 edition;
b) addition of missing Advanced Metering Infrastructure (AMI) related functions;
c) alignment with newly released documents from the technical committee;
d) alignment with EN 61968-100;
e) update of annexes.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.

Endorsement notice
The text of the International Standard IEC 61968-1:2012 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards indicated:
IEC 61968-4 NOTE  Harmonized as EN 61968-4.
IEC 61970-501 NOTE  Harmonized as EN 61970-501.

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SIST EN 61968-1:2013
- 3 - EN 61968-1:2013

Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.

Publication Year Title EN/HD Year

IEC 61968-3 - Application integration at electric utilities - EN 61968-3 -
System interfaces for distribution
management -
Part 3: Interface for network operations


IEC 61968-9 - Application integration at electric utilities - EN 61968-9 -
System interfaces for distribution
management -
Part 9: Interface for meter reading and control


IEC 61968-11 - Application integration at electric utilities - EN 61968-11 -
System interfaces for distribution
management -
Part 11: Common Information Model (CIM)
extensions for distribution


IEC 61968-13 - Application integration at electric utilities - EN 61968-13 -
System interfaces for distribution
management -
Part 13: CIM RDF Model exchange format for
distribution


IEC 61970-301 - Energy management system application EN 61970-301 -
program interface (EMS-API) -
Part 301: Common information model (CIM)
base

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SIST EN 61968-1:2013

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SIST EN 61968-1:2013




IEC 61968-1

®


Edition 2.0 2012-10




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Application integration at electric utilities – System interfaces for distribution

management –

Part 1: Interface architecture and general recommendations




Intégration d'applications pour les services électriques – Interfaces système

pour la gestion de distribution –


Partie 1: Architecture des interfaces et recommandations générales













INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX XB


ICS 33.200 ISBN 978-2-83220-425-2



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61968-1:2013
– 2 – 61968-1 © IEC:2012
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 11
2 Normative references . 11
3 Interface reference model . 11
3.1 Domain . 11
3.2 Business functions . 12
3.3 Interface reference model . 13
4 Integration infrastructure recommendations . 39
4.1 General . 39
4.2 Requirements analysis methodology . 39
5 Interface profile . 39
5.1 General . 39
5.2 Abstract components . 40
5.3 Component adapters . 41
5.4 Interface specification . 41
5.5 Middleware adapter . 41
5.6 Middleware services . 42
5.7 Communication services . 42
5.8 Platform environment . 42
6 Information exchange model . 42
6.1 General requirements . 42
6.2 Message structures . 43
6.2.1 General recommendation . 43
6.2.2 Message header . 44
6.2.3 Message type payload . 44
6.2.4 Explanation of associations . 46
6.2.5 Compliance philosophy . 47
6.2.6 Extension . 47
6.2.7 Request message . 47
6.2.8 Response message . 48
6.2.9 Event message . 48
6.2.10 Fault message . 48
6.2.11 Signature element . 49
7 Component reporting and error handling (informative) . 49
7.1 Component reporting . 49
7.2 Error message handling. 49
8 Security and authentication (informative) . 50
9 Maintenance aspects (informative) . 50
Annex A (informative) Use of IEC 61968 series of standards . 51
Annex B (informative) Inter-application integration performance considerations . 61
Annex C (informative) Views of data in a conventional electric utility . 62
Bibliography . 65

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SIST EN 61968-1:2013
61968-1 © IEC:2012 – 3 –
Figure 1 – Distribution management with IEC 61968 compliant interface architecture . 7
Figure 2 – Example utility implementation of IEC 61968 . 9
Figure 3 – Typical functions mapped to interface reference model . 13
Figure 4 – Overview of the interface profile and corresponding subclause numbers . 40
Figure 5 – Logical view of an IEC 61968 message . 44
Figure 6 – Example of a message type payload . 45
Figure 7 – Example of how message elements are derived from the CIM . 46
Figure 8 – Navigating associations in CIM (UML notation) . 46
Figure 9 – Navigating associations in message type schemas . 47
Figure 10 – Logical view of a request message . 47
Figure 11 – Logical view of a response message . 48
Figure 12 – Logical view of an event message . 48
Figure 13 – Logical view of a fault message . 49
Figure A.1 – Process A: Application of IEC 61968 series by a utility. 52
Figure A.2 – Process B: application of IEC 61968 series by a utility . 53
Figure C.1 – Database views depend on the time and user . 63

Table 1 – Document overview for IEC 61968-1 . 10
Table 2 – The Interface Reference Model (IRM) . 15
Table A.1 – Use case template . 55
Table A.2 – Commonly used verbs . 58
Table B.1 – Typical load scenario . 61

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SIST EN 61968-1:2013
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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

APPLICATION INTEGRATION AT ELECTRIC UTILITIES –
SYSTEM INTERFACES FOR DISTRIBUTION MANAGEMENT –

Part 1: Interface architecture and general recommendations


FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61968-1 has been prepared by IEC technical committee 57: Power
systems management and associated information exchange.
This second edition cancels and replaces the first edition published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) update of IRM table which has been out of date since the 1st edition;
b) addition of missing Advanced Metering Infrastructure (AMI) related functions;
c) alignment with newly released documents from the technical committee;
d) alignment with IEC 61968-100;
e) update of annexes.

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SIST EN 61968-1:2013
61968-1 © IEC:2012 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
57/1272/FDIS 57/1288/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 61968 series, published under the general title Application
integration at electric utilities – System interfaces for distribution management, can be found
on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

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SIST EN 61968-1:2013
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INTRODUCTION
IEC 61968 is a series of standards:
IEC 61968 part Title
1 Interface architecture and general recommendations
2 Glossary
3 Interface for network operation
4 Interface for records and asset management
1
5 Interface standard for operational planning and optimisation
2
6 Interface for maintenance and construction
3
7 Interface standard for network extension planning
4
8 Interface standard for customer support
9 Interface for meter reading and control
11 Common information model (CIM) extensions for distribution
13 CIM RDF model exchange format for distribution
5
100 Implementation profiles

The IEC 61968 series is intended to facilitate inter-application integration, as opposed to
intra-application integration of the various distributed software application systems supporting
the management of utility electrical distribution networks. Intra-application integration is aimed
at programs in the same application system, usually communicating with each other using
middleware that is embedded in their underlying runtime environment. Additionally the intra-
application integration tends to be optimized for close, real-time, synchronous connections
and interactive request/reply or conversation communication models. IEC 61968 series by
contrast, is intended to support the inter-application integration of a utility enterprise that
needs to connect disparate applications that are already built or new (legacy or purchased
applications) each supported by dissimilar runtime environments. Therefore, IEC 61968 series
is relevant to loosely coupled applications with more heterogeneity in languages, operating
systems, protocols, and management tools. IEC 61968 series is intended to support
applications that need to exchange data on an event driven basis. IEC 61968 series is also
intended to be implemented with middleware services that broker messages among
applications and complementing, but not replacing, utility data warehouses, database
gateways, and operational stores.
———————
1
 Under consideration.
2
 Under consideration.
3
 Under consideration.
4
 Under consideration.
5
 Under consideration.

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SIST EN 61968-1:2013
61968-1 © IEC:2012 – 7 –
IEC  1963/12

Figure 1 – Distribution management with IEC 61968 compliant interface architecture
Figure 1 clarifies the scope of IEC 61968-1 graphically in terms of business functions and
shows distribution management with IEC 61968 compliant interface architecture.
As used in IEC 61968 series, distribution management consists of various distributed
application components for the utility to manage electrical distribution networks. These
capabilities include monitoring and control of equipment for power delivery, management
processes to ensure system reliability, voltage management, demand-side management,
outage management, work management, automated mapping and facilities management. The
distribution management system could also be integrated with premise area networks (PAN)
through an advanced metering infrastructure (AMI) network. Standard interfaces are to be
defined for each class of applications identified in Clause 3, Interface Reference Model (IRM),
except for those in the group EXT (External to DMS – distribution management system).
In the distribution management domain it is important to keep in mind the basic meaning of
the following terms:
• management: effective regulation and direction;
• automation: working without human participation in accordance with pre-defined rule sets;
• system: a set of organized operations working to support a particular activity (set of
applications). Generally, a system in the context of this work is a computer based
technology.
In the world of integrated systems, systems can also be a subset of a larger system, a system
of systems or a set of federated systems. A system composed of coordinating subsystems
may support activities more efficiently than the subsystems operating independently.
As the size of an organisation increases so does the complexity of the tasks and information
exchange associated with the tasks. Furthermore, the deeper the data structure is within a
system the less transparent it is to the end user. This suggests the need for data stewardship
to avoid:
• errors arising from multiple points of data entry;

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SIST EN 61968-1:2013
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• lack of consistency with software interfaces;
• expensive changes with new or upgraded software;
• loss of governance of authorised data.
The standardisation of data facilitates the reduction of errors, reduced time for data entry, and
improved process control.
IEC 61968 series recommends that the semantics (domain model) of system interfaces of a
compliant utility inter-application infrastructure be defined using Unified Modelling Language
(UML).
The Extensible Markup Language (XML) is a data format for structured document interchange
particularly on the Internet. One of its primary uses is information exchange between different
and potentially incompatible computer systems. XML is thus recommended to define
grammar/syntax (profiles) of a compliant utility inter-application infrastructure.
Where applicable, IEC 61968-3 to -9 and -13 of this standard will define the information
recommended for ‘message payloads’. Message Payloads will be formatted using XML, with
structures defined using XML Schema (IEC 61968-3 to -9) or RDF Schema (IEC 61968-13)
with the intent that these payloads can be loaded on to messages of various messaging
transports, such as SOAP, JMS, RESTful HTTP, or Web Services (WS). It is the intent of
IEC 61968 series to be leveraged by Service-Oriented Architectures (SOA) and to encourage
the usage of Enterprise Service Buses (ESB). In the future, it is possible that payload formats
other than XML could be officially adopted by IEC 61968 series for specific parts or
information exchanges.
Communication between application components of the IRM requires compatibility on two
levels:
• message formats and protocols;
• message contents are mutually understood, including application-level issues of message
layout and semantics.
Clause 5 defines abstract middleware services recommended to support communication
between the applications defined in the IRM. These services are intended to be deployed,
with little additional software required, by mapping them to commonly available services from
various messaging technologies including Web services (WS-*) and middleware such as
Message Brokers, Message Oriented Middleware (MOM), Message-Queuing Middleware
(MQM), and Enterprise Service Buses (ESB). Clause 5 is organized as follows:
• Subclause 5.1 provides overview of interface profile.
• Subclause 5.2 identifies general recommendations of the applications identified in the IRM.
• Sub-clause 5.3 describes component adapters.
• Subclause 5.4 describes interface specification recommendations.
• Subclause 5.5 describes how information exchange services may either be supported
directly by middleware or that software may be required to map (adapt) the utility’s
middleware services to the standard information exchange services.
• Subclauses 5.6 to 5.8 describe environmental recommendations for information exchange.
An example of a typical utility’s implementation of IEC 61968 series is provided in Figure 2. In
this example, the utility has used interface adapters as a means to integrate many of its
legacy systems with other application systems that are IEC 61968 compliant. Note those
legacy systems and IEC 61968 compliant systems both continue to use proprietary integration
techniques among their internal applications; only information that needs to be exchanged
among applications at the utility enterprise level is expected to use IEC 61968 interface
services.

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SIST EN 61968-1:2013
61968-1 © IEC:2012 – 9 –
For purposes of this example, it is assumed that the utility’s Outage Management System
(OMS) already has the capability to issue controls to and gather device states from the
Distribution Automation system. As it is working acceptably for the utility, this interface does
not need to be changed. However, because other applications need to be noti
...