IEC 61970-301:2020

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

IEC 61970-301:2020 lays down the common information model (CIM), which is an abstract model that represents all the major objects in an electric utility enterprise typically involved in utility operations. By providing a standard way of representing power system resources as object classes and attributes, along with their relationships, the CIM facilitates the integration of network applications developed independently by different vendors, between entire systems running network applications developed independently, or between a system running network applications and other systems concerned with different aspects of power system operations, such as generation or distribution management. SCADA is modeled to the extent necessary to support power system simulation and inter-control centre communication. The CIM facilitates integration by defining a common language (i.e. semantics) based on the CIM to enable these applications or systems to access public data and exchange information independent of how such information is represented internally.
This edition reflects the model content version ‘IEC61970CIM17v38’, dated ‘2020-01-21’, and includes the following significant technical changes with respect to the previous edition:
a) Added Feeder modelling;
b) Added ICCP configuration modelling;
c) Correction of issues found in interoperability testing or use of the standard;
d) Improved documentation;
e) Updated Annex A with custom extensions;
f) Added Annex B Examples of PST transformer modelling;
g) Added Annex C HVDC use cases.

Interface de programmation d'application pour système de gestion d'énergie (EMS-API) - Partie 301: Base de modèle d'information commun (CIM)

IEC 61970-301:2020 Le modèle d'information commun (CIM – common information model) est un modèle abstrait qui représente tous les objets principaux d'une entreprise de service public d'électricité habituellement nécessaires aux opérations d'une entreprise de service public d'électricité. La représentation normalisée des ressources de systèmes de puissance comme classes et attributs d'objets ainsi que leurs relations que fournit le CIM facilite l'intégration et l'interopérabilité des applications réseau développées de façon indépendante par différents fournisseurs, entre des systèmes complets exploitant des applications réseau développés de façon indépendante ou entre un système exploitant des applications réseau et d'autres systèmes concernés par différents aspects des opérations d'un système de puissance tels que la gestion de la production ou de la distribution.
Cette septième édition annule et remplace la sixième édition parue en 2016. Cette septième édition constitue une révision technique.
Cette édition reflète la version du contenu du modèle "IEC61970CIM17v38", datée de
"2020-01-21", et inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) modélisation Feeder ajoutée;
b) modélisation de la configuration ICCP ajoutée;
c) correction de problèmes détectés dans les essais d’interopérabilité ou l’utilisation de la norme;
d) documentation améliorée;
e) Annexe A mise à jour avec des extensions personnalisées;
f) Annexe B ajoutée Exemples de modélisation de transformateur PST;
g) Annexe C ajoutée Cas d’utilisation CCHT.

General Information

• Status: Published
• Publication Date: 21-Feb-2022
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• 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: 03-Jul-2020
• Completion Date: 26-Jun-2020

Relations

• Amended By: IEC 61970-301:2020/AMD1:2022 - Amendment 1 - Energy management system application program interface (EMS-API) - Part 301: Common information model (CIM) base
• Effective Date: 05-Sep-2023
• Revises: IEC 61970-301:2016 - Energy management system application program interface (EMS-API) - Part 301: Common information model (CIM) base
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61970-301 ®
Edition 7.0 2020-06
INTERNATIONAL
STANDARD
colour
inside
Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base

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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International Standards for all electrical, electronic and related technologies.

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IEC 61970-301 ®
Edition 7.0 2020-06
INTERNATIONAL
STANDARD
colour
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Energy management system application program interface (EMS-API) –

Part 301: Common information model (CIM) base

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-8502-2

– 2 – IEC 61970-301:2020  IEC 2020
CONTENTS
FOREWORD . 35
INTRODUCTION . 37
1 Scope . 39
2 Normative references . 39
3 Terms and definitions . 40
4 CIM specification . 40
4.1 Overview. 40
4.2 CIM modelling notation . 41
4.3 CIM packages . 41
4.4 CIM classes and relationships . 43
4.4.1 Classes . 43
4.4.2 Generalization . 44
4.4.3 Simple association . 45
4.4.4 Aggregation . 46
4.5 CIM model concepts and examples . 46
4.5.1 Concepts . 46
4.5.2 Containment, equipment hierarchies and naming . 47
4.5.3 Names model . 48
4.5.4 Connectivity model . 49
4.5.5 Inheritance hierarchy . 52
4.5.6 Transformer model . 54
4.5.7 Transformer tap modelling . 56
4.5.8 Phase wire modelling . 69
4.5.9 Grounding devices modelling . 71
4.5.10 Cuts, clamps and jumpers model . 75
4.5.11 Measurements and controls . 79
4.5.12 Regulating control models . 84
4.5.13 DC model for CIM . 85
4.5.14 Static Var Compensator Voltage Regulation . 107
4.5.15 ICCP Configuration Model . 108
4.5.16 Feeder Model . 115
4.5.17 Control area modelling . 115
4.6 Modelling guidelines . 117
4.6.1 Modelling for change . 117
4.6.2 Process for amendments to the CIM . 117
4.6.3 Changes to the CIM UML model . 118
4.6.4 Changes to the CIM standards documents . 118
4.6.5 Deprecations . 118
4.6.6 CIM profiles . 118
4.7 Modelling tools . 119
4.8 User implementation conventions . 119
4.8.1 Conventions beyond UML . 119
4.8.2 Number of terminals for ConductingEquipment objects . 119
4.8.3 Nominal quantities . 120
4.8.4 Datatypes . 120
4.9 CIM modelling examples . 120
5 Detailed model . 120

5.1 Overview. 120
5.2 Context . 120
6 Package Base . 122
6.1 General . 122
6.2 Package Domain . 122
6.2.1 General . 122
6.2.2 ActivePower datatype . 128
6.2.3 ActivePowerChangeRate datatype . 129
6.2.4 ActivePowerPerCurrentFlow datatype . 129
6.2.5 ActivePowerPerFrequency datatype . 129
6.2.6 Admittance datatype . 129
6.2.7 AngleDegrees datatype . 130
6.2.8 AngleRadians datatype . 130
6.2.9 ApparentPower datatype. 130
6.2.10 Area datatype . 130
6.2.11 Boolean primitive . 131
6.2.12 Capacitance datatype . 131
6.2.13 CapacitancePerLength datatype . 131
6.2.14 Classification datatype . 131
6.2.15 Conductance datatype . 131
6.2.16 ConductancePerLength datatype . 132
6.2.17 CostPerEnergyUnit datatype . 132
6.2.18 CostPerHeatUnit datatype . 132
6.2.19 CostPerVolume datatype . 132
6.2.20 CostRate datatype . 133
6.2.21 Currency enumeration . 133
6.2.22 CurrentFlow datatype . 137
6.2.23 Damping datatype . 137
6.2.24 Date primitive . 137
6.2.25 DateInterval compound . 137
6.2.26 DateTime primitive . 138
6.2.27 DateTimeInterval compound . 138
6.2.28 Decimal primitive . 138
6.2.29 DecimalQuantity compound . 138
6.2.30 Displacement datatype . 138
6.2.31 Duration primitive . 139
6.2.32 Emission datatype . 139
6.2.33 Float primitive . 139
6.2.34 FloatQuantity compound . 139
6.2.35 Frequency datatype . 139
6.2.36 HeatRate datatype . 140
6.2.37 Hours datatype . 140
6.2.38 Impedance datatype . 140
6.2.39 Inductance datatype . 140
6.2.40 InductancePerLength datatype . 141
6.2.41 Integer primitive . 141
6.2.42 IntegerQuantity compound . 141
6.2.43 KiloActivePower datatype . 141
6.2.44 Length datatype . 142

– 4 – IEC 61970-301:2020  IEC 2020
6.2.45 Mass datatype .
...

IEC 61970-301 ®
Edition 7.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base

Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 301: Base de modèle d'information commun (CIM)

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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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.

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IEC 61970-301 ®
Edition 7.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –

Part 301: Common information model (CIM) base

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

(EMS-API) –
Partie 301: Base de modèle d'information commun (CIM)

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.200 ISBN 978-2-8322-1040-8

– 2 – IEC 61970-301:2020  IEC 2020
CONTENTS
FOREWORD . 35
INTRODUCTION . 37
1 Scope . 39
2 Normative references . 39
3 Terms and definitions . 40
4 CIM specification . 40
4.1 Overview. 40
4.2 CIM modelling notation . 41
4.3 CIM packages . 41
4.4 CIM classes and relationships . 43
4.4.1 Classes . 43
4.4.2 Generalization . 44
4.4.3 Simple association . 45
4.4.4 Aggregation . 46
4.5 CIM model concepts and examples . 46
4.5.1 Concepts . 46
4.5.2 Containment, equipment hierarchies and naming . 47
4.5.3 Names model . 48
4.5.4 Connectivity model . 49
4.5.5 Inheritance hierarchy . 52
4.5.6 Transformer model . 54
4.5.7 Transformer tap modelling . 56
4.5.8 Phase wire modelling . 69
4.5.9 Grounding devices modelling . 71
4.5.10 Cuts, clamps and jumpers model . 75
4.5.11 Measurements and controls . 79
4.5.12 Regulating control models . 84
4.5.13 DC model for CIM . 85
4.5.14 Static Var Compensator Voltage Regulation . 107
4.5.15 ICCP Configuration Model . 108
4.5.16 Feeder Model . 115
4.5.17 Control area modelling . 115
4.6 Modelling guidelines . 117
4.6.1 Modelling for change . 117
4.6.2 Process for amendments to the CIM . 117
4.6.3 Changes to the CIM UML model . 118
4.6.4 Changes to the CIM standards documents . 118
4.6.5 Deprecations . 118
4.6.6 CIM profiles . 118
4.7 Modelling tools . 119
4.8 User implementation conventions . 119
4.8.1 Conventions beyond UML . 119
4.8.2 Number of terminals for ConductingEquipment objects . 119
4.8.3 Nominal quantities . 120
4.8.4 Datatypes . 120
4.9 CIM modelling examples . 120
5 Detailed model . 120

5.1 Overview. 120
5.2 Context . 120
6 Package Base . 122
6.1 General . 122
6.2 Package Domain . 122
6.2.1 General . 122
6.2.2 ActivePower datatype . 128
6.2.3 ActivePowerChangeRate datatype . 129
6.2.4 ActivePowerPerCurrentFlow datatype . 129
6.2.5 ActivePowerPerFrequency datatype . 129
6.2.6 Admittance datatype . 129
6.2.7 AngleDegrees datatype . 130
6.2.8 AngleRadians datatype . 130
6.2.9 ApparentPower datatype. 130
6.2.10 Area datatype . 130
6.2.11 Boolean primitive . 131
6.2.12 Capacitance datatype . 131
6.2.13 CapacitancePerLength datatype . 131
6.2.14 Classification datatype . 131
6.2.15 Conductance datatype . 131
6.2.16 ConductancePerLength datatype . 132
6.2.17 CostPerEnergyUnit datatype . 132
6.2.18 CostPerHeatUnit datatype . 132
6.2.19 CostPerVolume datatype . 132
6.2.20 CostRate datatype . 133
6.2.21 Currency enumeration . 133
6.2.22 CurrentFlow datatype .
...

IEC 61970-301 ®
Edition 7.1 2022-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base

Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 301: Base de modèle d'information commun (CIM)

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
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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
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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.

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containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 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].
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
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monde, avec plus de 22 300 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
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Si vous désirez nous donner des commentaires sur cette
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IEC 61970-301 ®
Edition 7.1 2022-02
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base
Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 301: Base de modèle d'information commun (CIM)
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.200 ISBN 978-2-8322-5048-8

IEC 61970-301 ®
Edition 7.1 2022-02
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Energy management system application program interface (EMS-API) –
Part 301: Common information model (CIM) base

Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 301: Base de modèle d'information commun (CIM)

– 2 – IEC 61970-301:2020+AMD1:2022 CSV
 IEC 2022
CONTENTS
FOREWORD . 35
INTRODUCTION . 37
1 Scope . 39
2 Normative references . 39
3 Terms and definitions . 40
4 CIM specification . 40
4.1 Overview. 40
4.2 CIM modelling notation . 41
4.3 CIM packages . 41
4.4 CIM classes and relationships . 43
4.4.1 Classes . 43
4.4.2 Generalization . 44
4.4.3 Simple association . 45
4.4.4 Aggregation . 46
4.5 CIM model concepts and examples . 46
4.5.1 Concepts . 46
4.5.2 Containment, equipment hierarchies and naming . 47
4.5.3 Names model . 48
4.5.4 Connectivity model . 49
4.5.5 Inheritance hierarchy . 52
4.5.6 Transformer model . 54
4.5.7 Transformer tap modelling . 57
4.5.8 Phase wire modelling . 70
4.5.9 Grounding devices modelling . 72
4.5.10 Cuts, clamps and jumpers model . 76
4.5.11 Measurements and controls . 80
4.5.12 Regulating control models . 85
4.5.13 DC model for CIM . 87
4.5.14 Static Var Compensator Voltage Regulation . 109
4.5.15 ICCP Configuration Model . 110
4.5.16 Feeder Model . 117
4.5.17 Control area modelling . 117
4.6 Modelling guidelines . 119
4.6.1 Modelling for change . 119
4.6.2 Process for amendments to the CIM . 119
4.6.3 Changes to the CIM UML model . 120
4.6.4 Changes to the CIM standards documents . 120
4.6.5 Deprecations . 120
4.6.6 CIM profiles . 120
4.7 Modelling tools . 121
4.8 User implementation conventions . 121
4.8.1 Conventions beyond UML . 121
4.8.2 Number of terminals for ConductingEquipment objects . 121
4.8.3 Nominal quantities . 122
4.8.4 Datatypes . 122
4.9 CIM modelling examples . 122

 IEC 2022
5 Detailed model . 122
5.1 Overview. 122
5.2 Context . 122
6 Package Base . 124
6.1 General . 124
6.2 Package Domain . 124
6.2.1 General . 124
6.2.2 ActivePower datatype . 130
6.2.3 ActivePowerChangeRate datatype . 131
6.2.4 ActivePowerPerCurrentFlow datatype . 131
6.2.5 ActivePowerPerFrequency datatype . 131
6.2.6 Admittance datatype . 131
6.2.7 AngleDegrees datatype . 132
6.2.8 AngleRadians datatype . 132
6.2.9 ApparentPower datatype. 132
6.2.10 Area datatype . 132
6.2.11 Boolean primitive . 133
6.2.12 Capacitance datatype . 133
6.2.13 CapacitancePerLength datatype . 133
6.2.14 Classification datatype . 133
6.2.15 Conductance datatype . 133
6.2.16 ConductancePerLength datatype . 134
6.2.17 CostPerEnergyUnit datatype . 134
6.2.18 CostPerHeatUnit datatype .
...