IEC 61970-456:2013

Energy management system application program interface (EMS-API) - Part 456: Solved power system state profiles

IEC 61970-456:2013 defines the subset of classes, class attributes, and roles from the CIM necessary to describe the result of state estimation, power flow and other similar applications that produce a steady-state solution of a power network, under a set of use cases which are included informatively in this standard. This standard is intended for two distinct audiences, data producers and data recipients, and may be read from those two perspectives. From the standpoint of model export software used by a data producer, the standard describes how a producer may describe an instance of a network case in order to make it available to some other program. From the standpoint of a consumer, the standard describes what that importing software must be able to interpret in order to consume solution cases.

Interface de programmation d'application pour système de gestion d'énergie (EMS-API) - Partie 456: Profils d'état de réseaux électriques résolus

La CEI 61970-456:2013 définit le sous-ensemble de classes, les attributs de classe et les rôles du CIM, nécessaires pour décrire le résultat de l'estimation d'état, du calcul de répartition et d'autres applications similaires produisant une solution en régime établi d'un réseau électrique dans un ensemble de cas d'utilisation inclus à titre informatif dans la présente norme. La présente norme vise deux publics différents, les producteurs de données et les utilisateurs de données. Elle peut être lue de ces deux points de vue. Du point de vue du logiciel d'exportation de modèles utilisé par un producteur de données, la présente norme présente la façon dont un producteur peut décrire une instance d'un cas de réseau pour le rendre accessible à un autre programme. Du point de vue du client, la présente norme décrit ce que ce logiciel d'importation doit être capable d'interpréter afin de pouvoir absorber les cas de solution du client.

General Information

• Status: Published
• Publication Date: 06-May-2013
• 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: DELPUB - Deleted Publication
• Start Date: 28-Apr-2017
• Completion Date: 19-Mar-2018

Relations

• Amended By: IEC 61970-456:2013/AMD1:2015 - Amendment 1 - Energy management system application program interface (EMS-API) - Part 456: Solved power system state profiles
• Effective Date: 05-Sep-2023
• Revised: IEC 61970-456:2018 - Energy management system application program interface (EMS-API) - Part 456: Solved power system state profiles
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 61970-456 ®
Edition 1.1 2015-09
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Energy management system application program interface (EMS-API) –
Part 456: Solved power system state profiles

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 61970-456 ®
Edition 1.1 2015-09
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Energy management system application program interface (EMS-API) –

Part 456: Solved power system state profiles

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-2948-4

IEC 61970-456 ®
Edition 1.1 2015-09
CONSOLIDATED VERSION
REDLINE VERSION
colour
inside
Energy management system application program interface (EMS-API) –
Part 456: Solved power system state profiles

– 2 – IEC 61970-456:2013+AMD1:2015 CSV
© IEC 2015
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Profile information . 8
4 Overview . 8
5 Use cases . 9
5.1 General . 9
5.2 EMS state estimation. 9
5.3 ENTSO-E Process: Day-ahead congestion forecast . 10
5.4 System planning studies process . 11
5.5 Harmonization of planning and operations models . 12
6 Architecture . 12
6.1 General . 12
6.2 Profile architecture . 12
6.3 Profiles and datasets for EMS network analysis . 15
6.4 Profiles and datasets in a planning power flow . 16
6.5 Model authority sets and instance level data modularization . 17
6.5.1 General . 17
6.5.2 EMS instance modularization . 17
6.5.3 Planning instance modularization . 18
6.6 Principles of instance modularization . 19
7 Applying the standard to business problems . 21
7.1 EMS network analysis integration with external consumers . 21
7.2 Planning network analysis integration with external consumers . 23
8 Data model with CIMXML examples . 24
8.1 Measurement interfaces 2 and 3 . 24
8.2 Topology interface 4 . 24
8.3 State variables interfaces 5a and 5b state estimation . 26
9 Topology profile . 30
9.1 General . 30
9.2 Concrete classes . 30
9.2.1 Terminal . 30
9.2.2 TopologicalNode . 31
9.2.3 Name . 31
9.2.4 NameType . 31
9.3 Abstract classes – IdentifiedObject . 32
10 StateVariables profile . 32
10.1 General . 32
10.2 Concrete classes . 32
10.2.1 TopologicalIsland . 32
10.2.2 SvInjection . 33
10.2.3 SvPowerFlow . 33
10.2.4 SvShortCircuit . 34
10.2.5 SvShuntCompensatorSections . 34

© IEC 2015
10.2.6 SvTapStep . 35
10.2.7 SvVoltage . 35
10.2.8 TopologicalNode . 35
10.3 Abstract classes . 35
10.3.1 StateVariable . 35
10.3.2 ActivePower . 36
10.3.3 AngleDegrees . 36
10.3.4 ApparentPower . 36
10.3.5 ReactivePower . 36
10.3.6 Voltage . 37
Bibliography . 38

Figure 1 – TSO sends a case to be merged with the overall model . 11
Figure 2 – Profile relationships . 13
Figure 3 – Instance example of the CIM connectivity model . 14
Figure 4 – EMS datasets by CIM profiles . 15
Figure 5 – Planning power flow datasets by CIM profile . 16
Figure 6 – State estimation case sequence . 17
Figure 7 – Instance modularization applied in an EMS . 18
Figure 8 – Instance modularization applied to planning power flow models . 19
Figure 9 – Model merge process . 20
Figure 10 – EMS datasets to an external client . 21
Figure 11 – EMS boundary dataset example . 22
Figure 12 – Bus-branch Integration architecture . 23
Figure 13 – Bus-branch modeling of bus coupler and line transfer . 23
Figure 14 – CIM topology model . 24
Figure 15 – Topology solution interface . 25
Figure 16 – CIM state variable solution model . 27
Figure 17 – State solution interface example . 29

Table 1 – Profiles defined in this document . 8

– 4 – IEC 61970-456:2013+AMD1:2015 CSV
© IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ENERGY MANAGEMENT SYSTEM APPLICATION
PROGRAM INTERFACE (EMS-API) –
Part 456: Solved power system state profiles
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,
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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 effort
...

IEC 61970-456 ®
Edition 1.0 2013-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –
Part 456: Solved power system state profiles

Interface de programmation d'application pour système de gestion d'énergie
(EMS-API) –
Partie 456: Profils d'état de réseaux électriques résolus

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.

About IEC publications
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latest edition, a corrigenda or an amendment might have been published.

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IEC 61970-456 ®
Edition 1.0 2013-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Energy management system application program interface (EMS-API) –

Part 456: Solved power system state profiles

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

(EMS-API) –
Partie 456: Profils d'état de réseaux électriques résolus

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 33.200 ISBN 978-2-83220-756-7

– 2 – 61970-456 © IEC:2013
CONTENTS
FOREWORD . 4

INTRODUCTION . 6

1 Scope . 7

2 Normative references . 7

3 Profile information . 8

4 Overview . 8

5 Use cases . 9
5.1 General . 9
5.2 EMS state estimation. 9
5.3 ENTSO-E Process: Day-ahead congestion forecast . 10
5.4 System planning studies process . 11
5.5 Harmonization of planning and operations models . 12
6 Architecture . 12
6.1 General . 12
6.2 Profile architecture . 12
6.3 Profiles and datasets for EMS network analysis . 15
6.4 Profiles and datasets in a planning power flow . 16
6.5 Model authority sets and instance level data modularization . 17
6.5.1 General . 17
6.5.2 EMS instance modularization . 17
6.5.3 Planning instance modularization . 18
6.6 Principles of instance modularization . 19
7 Applying the standard to business problems . 21
7.1 EMS network analysis integration with external consumers . 21
7.2 Planning network analysis integration with external consumers . 23
8 Data model with CIMXML examples . 24
8.1 Measurement interfaces 2 and 3 . 24
8.2 Topology interface 4 . 24
8.3 State variables interfaces 5a and 5b state estimation . 26
9 Topology profile . 30
9.1 General . 30

9.2 Concrete classes . 30
9.2.1 Terminal . 30
9.2.2 TopologicalNode . 31
9.3 Abstract classes – IdentifiedObject . 31
10 StateVariables profile . 32
10.1 General . 32
10.2 Concrete classes . 32
10.2.1 TopologicalIsland . 32
10.2.2 SvInjection . 32
10.2.3 SvPowerFlow . 33
10.2.4 SvShortCircuit . 33
10.2.5 SvShuntCompensatorSections . 33
10.2.6 SvTapStep . 34
10.2.7 SvVoltage . 34

61970-456 © IEC:2013 – 3 –
10.3 Abstract classes . 34

10.3.1 StateVariable . 34

10.3.2 ActivePower . 34

10.3.3 AngleRadians . 35

10.3.4 ApparentPower . 35

10.3.5 ReactivePower . 35

10.3.6 Voltage . 35

Bibliography . 36

Figure 1 – TSO sends a case to be merged with the overall model . 11
Figure 2 – Profile relationships . 13
Figure 3 – Instance example of the CIM connectivity model . 14
Figure 4 – EMS datasets by CIM profiles . 15
Figure 5 – Planning power flow datasets by CIM profile . 16
Figure 6 – State estimation case sequence . 17
Figure 7 – Instance modularization applied in an EMS . 18
Figure 8 – Instance modularization applied to planning power flow models . 19
Figure 9 – Model merge process . 20
Figure 10 – EMS datasets to an external client . 21
Figure 11 – EMS boundary dataset example . 22
Figure 12 – Bus-branch Integration architecture . 23
Figure 13 – Bus-branch modeling of bus coupler and line transfer . 23
Figure 14 – CIM topology model . 24
Figure 15 – Topology solution interface . 25
Figure 16 – CIM state variable solution model . 27
Figure 17 – State solution interface example . 29

Table 1 – Profiles defined in this document . 8

– 4 – 61970-456 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
ENERGY MANAGEMENT SYSTEM APPLICATION

PROGRAM INTERFACE (EMS-API) –
Part 456: Solved power system state profiles

FOREWORD
1) The International Electrotechnical Commission (I
...