IEC 61970-600-1:2021

Energy management system application program interface (EMS-API) - Part 600-1: Common Grid Model Exchange Standard (CGMES) - Structure and rules

IEC 61970-600-1:2021 covers the definition of Common Grid Model Exchange Standard (CGMES), defines the main rules and application’s requirements to meet business requirements for assembled and merged model to fit relevant business services. This document does not define the business requirements, business processes nor how applications are implemented. This document defines how relevant Common Information Model (CIM) standards work together so that specific business requirements can be resolved.
It also includes extensions to the Common Information Model (CIM). The current extensions are defined in IEC 61970-301:2020 and will be covered in its future Amendment 1, but additional extensions can be defined in other standards in the IEC 61970-600-series. The extensions can be used to define additional profiles or to expand IEC 61970-450-series or IEC 61968-13 profiles. However, primary CGMES includes additional constraints on existing profiles and validation of assembled and merged models that is based on existing profiles. This can be done by making optional attributes and associations mandatory (required).
In addition, this document includes the specification of the serialisation that must be supported by referring to an existing standard defined in IEC 61970-550-series, e.g. IEC 61970-552, and making relevant constraints related to it.
The goal is to achieve interoperability between applications using CGMES in a high-performance environment with combined minimum effort so that relevant business processes are satisfied.
This first edition cancels and replaces IEC TS 61970-600-1 published in 2017. This edition constitutes a technical revision.

Interface de programmation d'application pour système de gestion d'énergie (EMS-API) - Partie 600-1: Norme pour l'échange de modèle de réseau commun (CGMES) - Structure et règles

IEC 61970-600-1:2021 couvre la définition de la norme pour l'échange de modèle de réseau commun (CGMES), définit les principales règles et exigences d'application qui visent à satisfaire aux exigences métier destinées à adapter le modèle assemblé et fusionné aux services métier correspondants. Le présent document ne définit pas les exigences métier, les processus métier ni la façon dont les applications sont mises en œuvre. Le présent document définit la façon dont les normes applicables du modèle d'information commun (CIM) fonctionnent ensemble pour pouvoir répondre aux exigences métier spécifiques.
Il comprend également des extensions du modèle d'information commun (CIM). Les extensions actuelles sont définies dans l'IEC 61970-301:2020 et seront traitées dans son futur Amendement 1, mais des extensions supplémentaires peuvent être définies dans d'autres normes de la série IEC 61970-600. Les extensions peuvent être utilisées pour définir des profils supplémentaires ou pour étendre les profils de la série IEC 61970-450 ou de l'IEC 61968-13. Toutefois, la CGMES primaire inclut des contraintes supplémentaires pour les profils existants et la validation des modèles assemblés et fusionnés qui repose sur les profils existants. Pour cela, les attributs et les associations facultatifs peuvent être rendus obligatoires.
En outre, le présent document comprend la spécification de la sérialisation qu'il importe d'étayer par une référence à une norme existante définie dans la série IEC 61970-550, par exemple l'IEC 61970-552, et par l'établissement de contraintes pertinentes associées.
L'objectif est d'assurer l'interopérabilité entre les applications qui utilisent la CGMES dans un environnement à haute performance en combinant un effort minimal pour satisfaire aux processus métier correspondants.
Cette première édition annule et remplace l'IEC TS 61970-600-1 parue en 2017. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'IEC TS 61970 600-1:2017:
• les termes et définitions ont été mis à jour;
• la colonne "Type" a été supprimée de tous les tableaux pour améliorer la lisibilité du document. Toutes les règles sont en effet réputées nécessaires, ce qui rend inutile leur catégorisation;
• l'exigence HGEN4 a été ajoutée afin de définir des règles supplémentaires dans l'en-tête de fichier par rapport à l'IEC 61970-552:2016;
• l'Annexe B qui récapitule les règles spécifiques pour les conventions de nommage a été supprimée, car les informations étaient soit intégrées au modèle UML, soit jugées obsolètes;
• l'Annexe D qui traite de la modélisation des transformateurs déphaseurs (PST) a été supprimée, car elle sera entièrement intégrée à l'IEC 61970 301:2020+AMD1 ;
• l'Annexe E qui fournit un guide de mise en œuvre a été supprimée, car toutes les règles et recommandations de mise en œuvre sont ou seront intégrées à l'Article 5 du présent document ou dans l'IEC 61970-301:2020 (et son futur Amendement 1), l'IEC 61970-452 ou l'IEC 61970-456, comme cela est indiqué dans le présent document. Noter que l'ancien E.11.2 qui traite des attributs ConformLoadGroup et NonConformLoadGroup a été organisé d'une manière différente en raison d'un autre problème. Pour plus d'informations, se référer à l'IEC 61970-600-2:2020;
• les règles GENC17, GENC18, GENC19, EQ__4, EQ__5, SV__4, BPPL12, BPPL13, MVAL5, EXCH9, TP__4 et MARP12 ont été ajoutées;
• les règles GENC3, GENC6, PROF2, PROF4, PROF5, PROF8, PROF9, EXCH5, EXCH6, EXCH7, MAS_4, MAS_6, MAS_9, MAS_10, MAS_11, MAS_13, EQ__1, HREF2, HREF3, HREF5, MVAL3, TPBD1, TPBD2, BPPL10, NAMC12 et NAMC13 ont été supprimées, car elles ne sont pas pertinentes du fait d'autres modifications;
• les règles suivantes ont été modifiées: GENC1, GENC2, GENC4, GENC5, GENC7, GENC8, GENC9, GENC10, GENC16, EQBD2, BPPL11, EXCH2, EXCH3, EXCH8, FBOD3, FBOD5, PROF10, PROF11, MAS_1, MAS_8, HGEN3, HREF1,EEXT1, EQ__2, TP__1, TP__2, TP__3, MARP10, MARP1

General Information

• Status: Published
• Publication Date: 03-Jun-2021
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: TC 57 - Power systems management and associated information exchange
• Drafting Committee: WG 13 - TC 57/WG 13
• Current Stage: PPUB - Publication issued
• Start Date: 11-Jun-2021
• Due Date: 04-Jun-2021
• Completion Date: 04-Jun-2021

Relations

• Revises: IEC TS 61970-600-1:2017 - Energy management system application program interface (EMS-API) - Part 600-1: Common Grid Model Exchange Specification (CGMES) - Structure and rules
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61970-600-1 ®
Edition 1.0 2021-06
INTERNATIONAL
STANDARD
colour
inside
Energy management system application program interface (EMS-API) –
Part 600-1: Common Grid Model Exchange Standard (CGMES) – Structure and
rules
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC 61970-600-1 ®
Edition 1.0 2021-06
INTERNATIONAL
STANDARD
colour
inside
Energy management system application program interface (EMS-API) –

Part 600-1: Common Grid Model Exchange Standard (CGMES) – Structure and

rules
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-9814-5

– 2 – IEC 61970-600-1:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 10
3.1 Terms and definitions . 10
3.2 Abbreviated terms . 11
4 Data exchange context . 12
5 Specifications and functionalities . 15
5.1 General constraints . 15
5.2 Model authority sets (MAS) . 17
5.3 File header . 18
5.4 File body . 19
5.5 Profiles and instance file types. 19
5.5.1 General . 19
5.5.2 CGMES profiles’ properties . 19
5.5.3 CGMES extensions . 21
5.5.4 Equipment profile and instance file . 22
5.5.5 Topology profile and instance file . 23
5.5.6 Steady state hypothesis profile and instance file . 23
5.5.7 State variables profile and instance file . 24
5.5.8 Equipment boundary profile and instance file . 24
5.5.9 Topology boundary profile and instance file . 24
5.5.10 Diagram layout profile and instance file . 24
5.5.11 Geographical location profile and instance file . 25
5.5.12 Dynamics profile and instance file . 25
5.6 File exchange . 26
5.7 Boundary point – properties and location . 27
5.8 Model merging process . 29
5.9 CIM XML document/distribution validity . 32
5.10 Naming Convention . 33
6 CGMES governance . 36
6.1 General . 36
6.2 Versions of the CGMES and the profiles . 37
6.3 Conformity assessment . 38
6.4 Implementation process . 38
Annex A (xxxx) . 39
Annex B (normative) File header guidelines . 40
B.1 General . 40
B.2 Exchange scenarios . 40
B.3 Examples . 41
B.3.1 Example 1: File header of full model . 41
B.3.2 Example 2: File header of full model that is depending on another
model . 42
B.3.3 Example 3: File header of full model that is depending on a model and
supersedes another model . 43

B.3.4 Example 4: File header of difference model that is depending on a full
model and supersedes another full model . 44
B.3.5 Example 5: File header of difference model that is depending on a
difference model and supersedes another difference model . 45
Bibliography . 47

Figure 1 – CGMES instance file dependency . 20
Figure 2 – Boundary point placed on a tie-line . 27
Figure 3 – Boundary point placed in a substation . 27
Figure 4 – HVDC as interconnection or internal line . 28
Figure 5 – HVDC grid . 28
Figure 6 – Merge process . 31
Figure B.1 – Example workflow events . 40

Table 1 – IdentifiedObject attributes . 36
Table 2 – IdentifiedObject attributes in EQBD profile . 36

– 4 – IEC 61970-600-1:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY MANAGEMENT SYSTEM APPLICATION
PROGRAM INTERFACE (EMS-API) –
Part 600-1: Common Grid Model Exchange Standard (CGMES) –
Structure and rules
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 61970-600-1 has been prepared by IEC technical committee 57:
Power systems management and associated information exchange.
This first edition cancels and replaces IEC TS 61970-600-1 published in 2017. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to
IEC TS 61970-600-1:2017:
• Terms and definitions were updated.
• The “Type” column in all tables was deleted to increase readability of the document as all
the rules are considered required, hence categorisation is not necessary.
• Requirement HGEN4 was added to define additional rules to the file header compared to
IEC 61970-552:2016.
• Annex B on “Summary of specific rules for naming conventions” is deleted
...

IEC 61970-600-1 ®
Edition 1.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 600-1: Common Grid Model Exchange Standard (CGMES) – Structure and
rules
Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 600-1: Norme pour l'échange de modèle de réseau commun (CGMES) –
Structure et règles
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite ni
utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie et
les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - Découvrez notre puissant moteur de recherche et consultez
webstore.iec.ch/advsearchform gratuitement tous les aperçus des publications. Avec un
La recherche avancée permet de trouver des publications IEC abonnement, vous aurez toujours accès à un contenu à jour
en utilisant différents critères (numéro de référence, texte, adapté à vos besoins.
comité d’études, …). Elle donne aussi des informations sur les
projets et les publications remplacées ou retirées. Electropedia - www.electropedia.org

Le premier dictionnaire d'électrotechnologie en ligne au monde,
IEC Just Published - webstore.iec.ch/justpublished
avec plus de 22 300 articles terminologiques en anglais et en
Restez informé sur les nouvelles publications IEC. Just
français, ainsi que les termes équivalents dans 19 langues
Published détaille les nouvelles publications parues.
additionnelles. Egalement appelé Vocabulaire
Disponible en ligne et une fois par mois par email.
Electrotechnique International (IEV) en ligne.

Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC Products & Services Portal - products.iec.ch

IEC 61970-600-1 ®
Edition 1.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –

Part 600-1: Common Grid Model Exchange Standard (CGMES) – Structure and

rules
Interface de programmation d'application pour système de gestion d'énergie

(EMS-API) –
Partie 600-1: Norme pour l'échange de modèle de réseau commun (CGMES) –

Structure et règles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.200 ISBN 978-2-8322-1074-7

– 2 – IEC 61970-600-1:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 10
3.1 Terms and definitions . 10
3.2 Abbreviated terms . 11
4 Data exchange context . 12
5 Specifications and functionalities . 15
5.1 General constraints . 15
5.2 Model authority sets (MAS) . 17
5.3 File header . 18
5.4 File body . 19
5.5 Profiles and instance file types. 19
5.5.1 General . 19
5.5.2 CGMES profiles’ properties . 19
5.5.3 CGMES extensions . 21
5.5.4 Equipment profile and instance file . 22
5.5.5 Topology profile and instance file . 23
5.5.6 Steady state hypothesis profile and instance file . 23
5.5.7 State variables profile and instance file . 24
5.5.8 Equipment boundary profile and instance file . 24
5.5.9 Topology boundary profile and instance file . 24
5.5.10 Diagram layout profile and instance file . 24
5.5.11 Geographical location profile and instance file . 25
5.5.12 Dynamics profile and instance file . 25
5.6 File exchange . 26
5.7 Boundary point – properties and location . 27
5.8 Model merging process . 29
5.9 CIM XML document/distribution validity . 32
5.10 Naming Convention . 33
6 CGMES governance . 36
6.1 General . 36
6.2 Versions of the CGMES and the profiles . 37
6.3 Conformity assessment . 38
6.4 Implementation process . 38
Annex A (xxxx) . 39
Annex B (normative) File header guidelines . 40
B.1 General . 40
B.2 Exchange scenarios . 40
B.3 Examples . 41
B.3.1 Example 1: File header of full model . 41
B.3.2 Example 2: File header of full model that is depending on another
model . 42
B.3.3 Example 3: File header of full model that is depending on a model and
supersedes another model . 43

B.3.4 Example 4: File header of difference model that is depending on a full
model and supersedes another full model . 44
B.3.5 Example 5: File header of difference model that is depending on a
difference model and supersedes another difference model . 45
Bibliography . 47

Figure 1 – CGMES instance file dependency . 20
Figure 2 – Boundary point placed on a tie-line . 27
Figure 3 – Boundary point placed in a substation . 27
Figure 4 – HVDC as interconnection or internal line . 28
Figure 5 – HVDC grid . 28
Figure 6 – Merge process . 31
Figure B.1 – Example workflow events . 40

Table 1 – IdentifiedObject attributes . 36
Table 2 – IdentifiedObject attributes in EQBD profile . 36

– 4 – IEC 61970-600-1:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY MANAGEMENT SYSTEM APPLICATION
PROGRAM INTERFACE (EMS-API) –
Part 600-1: Common Grid Model Exchange Standard (CGMES) –
Structure and rules
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 inter
...