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
• 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.

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About the IEC
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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
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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
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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
...