Application integration at electric utilities - System interfaces for distribution management - Part 1: Interface architecture and general recommendations

IEC 61968-1:2020 is the first in a series that, taken as a whole, defines interfaces for the major elements of an interface architecture for power system management and associated information exchange.
This document identifies and establishes recommendations for standard interfaces based on an Interface Reference Model (IRM). Subsequent clauses of this document are based on each interface identified in the IRM. This set of standards is limited to the definition of interfaces. They provide for interoperability among different computer systems, platforms, and languages. IEC 61968-100 gives recommendations for methods and technologies to be used to implement functionality conforming to these interfaces.
As used in IEC 61968, 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, network model management, facilities management, and metering. The IRM is specified in Clause 3. The IRM defines the high-level view of the TC 57 reference architecture and the detailed in the relevant 61968 series, 61970 series or 62325 series. The goal of the IRM is to provide a common relevant context view for TC 57 that covers domains like transmission, distribution, market, generation, consumer, regional reliability operators, and regulators.
This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) update of IRM section, which has been out of date since the 2nd edition;
b) update to IRM model using ArchiMate modelling language;
c) addition of missing business functions and business objects;
d) alignment with newly released documents from the technical committee;
e) alignment with IEC 61968-100;
f) update of annexes.

Intégration d'applications pour les services électriques - Interfaces système pour la gestion de distribution - Partie 1: Architecture des interfaces et recommandations générales

IEC 61968-1:2020 est la première d'une série qui, prise dans son ensemble, définit les interfaces pour les éléments principaux d'une architecture d'interface pour la gestion des systèmes électriques et les échanges d'informations associés.
Le présent document identifie et établit des recommandations pour des interfaces normalisées reposant sur un modèle d'interface de référence (IRM). Les articles suivants de ce document reposent sur chaque interface identifiée dans le modèle IRM. Cet ensemble de normes se limite à la définition des interfaces. Celles-ci assurent l'interopérabilité entre les différents systèmes informatiques, plateformes et langages. L'IEC 61968-100 fournit des recommandations concernant les méthodes et technologies à utiliser pour mettre en œuvre une fonctionnalité conforme à ces interfaces.
Au sens de l'IEC 61968, la gestion de la distribution repose sur plusieurs composants d'application distribués qui permettent à l'entreprise de gérer ses réseaux de distribution électriques. Ces fonctions incluent la surveillance et la commande des équipements de fourniture d'énergie, les processus de gestion qui assurent la fiabilité du système, la gestion de la tension, la gestion de la demande, la gestion des interruptions de service, la gestion des travaux, la gestion des modèles de réseau, la gestion des installations et le comptage. Le modèle IRM est spécifié à l'Article 3. Le modèle IRM définit la vue générale de l'architecture de référence du CE 57 et la vue détaillée dans la série 61968, 61970 ou 62325 pertinente. L'objectif du modèle IRM est de fournir un contexte pertinent commun pour le CE 57 qui couvre différents domaines comme le transport, la distribution, le marché, la production, les consommateurs et les opérations de fiabilité régionales.
Cette troisième édition annule et remplace la deuxième édition parue en 2012. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) mise à jour du paragraphe traitant du modèle d'interface de référence (IRM) qui était obsolète depuis la deuxième édition;
b) mise à jour du modèle d'interface de référence à l'aide du langage de modélisation ArchiMate;
c) ajout de fonctions métier et d'objets métier manquants;
d) alignement sur les documents du comité d'études récemment publiés;
e) alignement sur le contenu de l'IEC 61968-100;
f) mise à jour des annexes.

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Status
Published
Publication Date
28-Apr-2020
Current Stage
PPUB - Publication issued
Completion Date
29-Apr-2020
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IEC 61968-1
Edition 3.0 2020-04
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 la distribution –
Partie 1: Architecture des interfaces et recommandations générales
IEC 61968-1:2020-04(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 61968-1
Edition 3.0 2020-04
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 la distribution –
Partie 1: Architecture des interfaces et recommandations générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
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ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.10 ISBN 978-2-8322-7915-1

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 61968-1:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope ............................................................................................................................ 10

2 Normative references .................................................................................................... 10

3 Terms and definitions .................................................................................................... 11

3.5 Abbreviated terms ................................................................................................. 12

4 Interface reference model .............................................................................................. 12

4.1 Domain ................................................................................................................. 12

4.2 Business functions ................................................................................................ 13

4.3 Interface reference model ..................................................................................... 13

4.3.1 General ......................................................................................................... 13

4.3.2 Asset Management (AM) ............................................................................... 14

4.3.3 Customer Management (CM) ......................................................................... 19

4.3.4 Emergency Simulation (ES) ........................................................................... 22

4.3.5 End Device Operation (EDO) ......................................................................... 25

4.3.6 Engineering Design Management (EDM) ....................................................... 27

4.3.7 Fault Management (FM) ................................................................................. 34

4.3.8 Compliance Management (CO) ...................................................................... 37

4.3.9 Market Operation (MO) .................................................................................. 39

4.3.10 Market Settlement (MS) ................................................................................. 42

4.3.11 Network Model Management (NMM) .............................................................. 45

4.3.12 Network Operation (NO) ................................................................................ 48

4.3.13 Predictive Operation Planning (POP) ............................................................. 54

4.3.14 Retail Market Operation (RMO) ...................................................................... 59

4.3.15 System Development Planning (SDP) ............................................................ 61

4.3.16 Work Management (WM) ............................................................................... 64

4.3.17 External to IEC .............................................................................................. 68

4.4 General ................................................................................................................. 75

4.5 Requirements analysis methodology ..................................................................... 75

5 Interface profile ............................................................................................................. 75

5.1 General ................................................................................................................. 75

5.2 Business function .................................................................................................. 76

5.3 Application adapter ............................................................................................... 77

5.4 Interface specification ........................................................................................... 78

5.5 Middleware adapter .............................................................................................. 78

5.6 Middleware service ............................................................................................... 79

5.7 Communication service ......................................................................................... 80

5.8 Platform environment ............................................................................................ 80

6 Information exchange model .......................................................................................... 80

6.1 General requirements ........................................................................................... 80

6.2 Message structures ............................................................................................... 81

6.2.1 General ......................................................................................................... 81

6.2.2 Compliance philosophy .................................................................................. 81

6.2.3 Extension ...................................................................................................... 82

7 Component reporting and error handling ........................................................................ 82

---------------------- Page: 4 ----------------------
IEC 61968-1:2020 © IEC 2020 – 3 –

7.1 Component reporting ............................................................................................ 82

7.2 Error message handling ........................................................................................ 83

8 Security and authentication ........................................................................................... 83

9 Maintenance aspects ..................................................................................................... 84

Annex A (informative) Use of IEC 61968 series of standards ............................................... 85

A.1 General ................................................................................................................. 85

A.2 Application of IEC 61968 series by a product vendor ............................................ 85

A.3 Application of IEC 61968 series by a utility ........................................................... 85

A.4 Establish interface architecture ............................................................................. 87

A.5 Define generic use cases ...................................................................................... 88

A.6 Message type verbs .............................................................................................. 88

A.7 Development of CIM model extensions for distribution .......................................... 88

Annex B (informative) Inter-application integration performance considerations ................... 89

Annex C (informative) Views of data in a conventional electric utility ................................... 90

C.1 General ................................................................................................................. 90

C.2 Classification ........................................................................................................ 90

C.3 Identification ......................................................................................................... 91

Annex D (informative) Relevant ArchiMate definitions for IRM .............................................. 93

D.1 General ................................................................................................................. 93

D.2 Business role ........................................................................................................ 93

D.3 Business function .................................................................................................. 94

D.4 Business object..................................................................................................... 94

D.5 Data object ........................................................................................................... 95

D.6 Composition relationship ....................................................................................... 95

D.7 Aggregation relationship ....................................................................................... 96

D.8 Realization relationship ......................................................................................... 96

D.9 Access relationship ............................................................................................... 96

D.10 Specialization relationship .................................................................................... 97

Annex E (informative) ED2 Interface profile mapping to ArchiMate ....................................... 98

E.1 ED2 Interface profile ............................................................................................. 98

E.2 ArchiMate interface profile .................................................................................... 98

E.3 Mapping between the 61968-1:2012 IRM and ArchiMate Used for ED3 ............... 100

Bibliography ........................................................................................................................ 102

Figure 1 – High-level IEC IRM business functions ................................................................... 7

Figure 2 – Defined business function for Interface Reference Model (IRM) ........................... 13

Figure 3 – Asset management business functions and business objects ............................... 16

Figure 4 – Customer management business functions and business objects ......................... 20

Figure 5 – Emergency simulation training business functions and business objects .............. 23

Figure 6 – End device operation business functions and business objects ............................ 25

Figure 7 – Engineering design management business functions and business objects .......... 29

Figure 8 – Break down of detail engineering and detail design .............................................. 30

Figure 9 – Fault management business functions and business objects ................................ 35

Figure 10 – Compliance management business functions and business objects .................... 37

Figure 11 – Market operation business functions and business objects ................................. 40

Figure 12 – Market settlement business functions and business objects ............................... 43

---------------------- Page: 5 ----------------------
– 4 – IEC 61968-1:2020 © IEC 2020

Figure 13 – Network model management business functions and business objects ............... 46

Figure 14 – Network operation business functions and business objects ............................... 49

Figure 15 – Predictive operation planning business functions and business objects .............. 55

Figure 16 – Retail market operation business functions and business objects ....................... 60

Figure 17 – System development planning business functions and business objects ............. 62

Figure 18 – Work management business functions and business objects .............................. 65

Figure 19 – External to IEC business functions and business objects ................................... 69

Figure 20 – Overview of the interface profile and corresponding subclause numbers ............ 76

Figure 21 – Manage Work Business Process Example .......................................................... 76

Figure 22 – WorkRequest Data Object Example .................................................................... 77

Figure 23 – Application Process Sequence Diagram Example ............................................... 78

Figure A.1 – Process A: Application of IEC 61968 series by a utility...................................... 86

Figure A.2 – Process B: application of IEC 61968 series by a utility ...................................... 87

Figure C.1 – Database views depend on the time and user ................................................... 91

Figure D.1 – Business role notation ...................................................................................... 93

Figure D.2 – Business function notation ................................................................................ 94

Figure D.3 – Business object notation ................................................................................... 95

Figure D.4 – Data object notation .......................................................................................... 95

Figure D.5 – Composition notation ........................................................................................ 96

Figure D.6 – Aggregation notation ........................................................................................ 96

Figure D.7 – Realization notation .......................................................................................... 96

Figure D.8 – Access notation ................................................................................................ 97

Figure D.9 – Specialization notation ...................................................................................... 97

Figure D.10 – Specialization ................................................................................................. 97

Figure E.1 – Overview of the interface profile in IEC 61968-1:2012 and corresponding

subclause numbers ............................................................................................................... 98

Figure E.2 – Simplified Mapping between the ArchiMate Language and the TOGAF

ADM ..................................................................................................................................... 99

Figure E.3 – Decomposition of the different layer to passive structure, behaviour and

active structure ................................................................................................................... 100

Table 1 – Document overview for IEC 61968-1 ....................................................................... 9

Table B.1 – Typical load scenario ......................................................................................... 89

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IEC 61968-1:2020 © IEC 2020 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
APPLICATION INTEGRATION AT ELECTRIC UTILITIES –
SYSTEM INTERFACES FOR DISTRIBUTION MANAGEMENT –
Part 1: Interface architecture and general recommendations
FOREWORD

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International Standard IEC 61968-1 has been prepared by IEC technical committee 57: Power

systems management and associated information exchange.

This third edition cancels and replaces the second edition published in 2012. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) update of IRM section, which has been out of date since the 2nd edition;
b) update to IRM model using ArchiMate modelling language;
c) addition of missing business functions and business objects;
d) alignment with newly released documents from the technical committee;
e) alignment with IEC 61968-100;
---------------------- Page: 7 ----------------------
– 6 – IEC 61968-1:2020 © IEC 2020
f) update of annexes.
The text of this standard is based on the following documents:
FDIS Report on voting
57/2174/FDIS 57/2186/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.
---------------------- Page: 8 ----------------------
IEC 61968-1:2020 © IEC 2020 – 7 –
INTRODUCTION
IEC 61968 is a series of standards:
IEC 61968 Title
part
1 Interface architecture and general recommendations
2 Glossary
3 Interface for network operation
4 Interface for records and asset management
5 Interface standard for operational planning and optimisation
6 Interface for maintenance and construction
Interface standard for network extension planning
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
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. The 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, the IEC 61968

series is relevant to loosely coupled applications with more heterogeneity in languages,

operating systems, protocols, and management tools. The IEC 61968 series is intended to

support applications that need to exchange data on an event driven basis. The 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.
Figure 1 – High-level IEC IRM business functions
____________
Under consideration.
---------------------- Page: 9 ----------------------
– 8 – IEC 61968-1:2020 © IEC 2020
Figure 1 clarifies the scope of IEC IRM in terms of business functions.

As used in the 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, and network model 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 IEC).

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 act
...

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