EN IEC 61968-5:2020

Application integration at electric utilities - System interfaces for distribution management - Part 5: Distributed energy optimization

IEC 61968-5:2020 is the description of a set of functions that are needed for enterprise integration of DERMS functions. These exchanges are most likely between a DERMS and a DMS. However, since this is an enterprise integration standard which may leverage IEC 61968-100:2013 for application integration (using web services or JMS) or other loosely-coupled implementations, there are no technical limitations for systems with which a DERMS might exchange information. Also, it should be noted that a DERMS might communicate with individual DER using a variety of standards and protocols such as IEC 61850, IEEE 2030.5, Distribution Network Protocol (DNP), Sunspec Modbus, or perhaps Open Field Message Bus (OpenFMB). One role of the DERMS is to manage this disparity and complexity of communications on the behalf of the system operator. However, the communication to individual DER is out of scope of this standard. Readers should look to those standards to understand communication to individual DER’s smart inverter. The scope will be limited to the following use case categories: • DER group creation – a mechanism to manage DER in aggregate • DER group maintenance – a mechanism to add, remove, or modify the members and/or aggregated capabilities of a given group of DER • DER group deletion – removing an entire group • DER group status monitoring – a mechanism for quantifying or ascertaining the current capabilities and/or status of a group of DER • DER group forecast – a mechanism for predicting the capabilities and/or status of a group of DER for a given time period in the future • DER group dispatch – a mechanism for requesting that specified capabilities of a group of DER be dispatched to the grid • DER group voltage ramp rate control – a mechanism for requesting that a DER group following a ramp rate curve • DER group connect/disconnect – a mechanism to request that DER either isolate themselves, or reconnect to the grid as needed.

Integration von Anwendungen in Anlagen der Elektrizitätsversorgung – Systemschnittstellen für Netzführung – Teil 5: Optimierung dezentraler Energie

Intégration d'applications pour les services électriques - Interfaces système pour la gestion de distribution - Partie 5: Optimisation de l'énergie distribuée

IEC 61968-5:2020 est la description d'un ensemble de fonctions indispensables à l'intégration par les entreprises des fonctions DERMS. Ces échanges sont les plus susceptibles d'avoir lieu entre un DERMS et un DMS. Toutefois, étant donné qu'une norme d'intégration par les entreprises peut s'appuyer sur l'IEC 61968 100:2013 pour l'intégration d'applications (par le biais de services web ou de la technologie JMS) ou d'autres implémentations faiblement couplées, les systèmes avec lesquels un DERMS peut échanger des informations ne font l'objet d'aucune limite technique. De même, il convient de noter qu'un DERMS peut communiquer avec une DER individuelle en utilisant une variété de normes et de protocoles comme l'IEC 61850, l'IEEE 2030.5, le protocole DNP (Distribution Network Protocol – Protocole de réseau de distribution), Sunspec Modbus, voire Open Field Message Bus (OpenFMB). Un rôle du DERMS consiste à gérer cette disparité et cette complexité des communications au nom de l'opérateur système. Toutefois, la communication avec la DER individuelle est hors du domaine d'application de la présente norme. Il convient que le lecteur consulte ces normes pour comprendre la communication avec l'onduleur intelligent d'une DER individuelle. Le domaine d'application est limité aux catégories de cas d'utilisation suivantes: • création de groupe de DER – mécanisme de gestion de DER en agrégat; • maintenance de groupe de DER – mécanisme d'ajout, de retrait ou de modification des membres et/ou capacités agrégées d'un groupe de DER donné; • suppression de groupe de DER – suppression d'un groupe entier; • surveillance du statut d'un groupe de DER – mécanisme de quantification ou de vérification des capacités réelles et/ou du statut d'un groupe de DER; • prévision de groupe de DER – mécanisme de prévision des capacités et/ou du statut d'un groupe de DER pour une période donnée ultérieure; • répartition de groupe de DER – mécanisme de demande de répartition des capacités spécifiées d'un groupe de DER sur le réseau; • contrôle du taux de rampe de tension du groupe de DER – mécanisme permettant de demander qu'un groupe de DER respecte la courbe de taux de rampe; • branchement/débranchement du groupe de DER – mécanisme permettant de demander que les DER s'isolent elles-mêmes ou se reconnectent au réseau, en fonction des besoins.

Združevanje aplikacij pri oskrbi z električno enegijo - Sistemski vmesniki za upravljanje distribucije - 5. del: Optimizacija porazdeljenih energijskhi virov

General Information

• Status: Published
• Publication Date: 24-Sep-2020
• ICS: 33.200 - Telecontrol. Telemetering
• Technical Committee: CLC/TC 57 - Power systems management and associated information exchange
• Drafting Committee: IEC/TC 57 - IEC_TC_57
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 25-Sep-2020
• Completion Date: 25-Sep-2020
• Ref Project: SIST EN IEC 61968-5:2020 - Application integration at electric utilities - System interfaces for distribution management – Part 5: Distributed energy optimization

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2020
Združevanje aplikacij pri oskrbi z električno enegijo - Sistemski vmesniki za
upravljanje distribucije - 5. del: Optimizacija porazdeljenih energijskhi virov
Application integration at electric utilities - System interfaces for distribution management
– Part 5: Distributed energy optimization
Intégration d'applications pour les services électriques - Interfaces système pour la
gestion de distribution - Partie 5: Optimisation de l'énergie distribuée
Ta slovenski standard je istoveten z: EN IEC 61968-5:2020
ICS:
29.240.30 Krmilna oprema za Control equipment for electric
elektroenergetske sisteme power systems
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61968-5

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2020
ICS 33.200
English Version
Application integration at electric utilities - System interfaces for
distribution management - Part 5: Distributed energy
optimization
(IEC 61968-5:2020)
Intégration d'applications pour les services électriques - Integration von Anwendungen in Anlagen der
Interfaces système pour la gestion de distribution - Partie 5: Elektrizitätsversorgung - Systemschnittstellen für
Optimisation de l'énergie distribuée Netzführung - Teil 5: Optimierung dezentraler Energie
(IEC 61968-5:2020) (IEC 61968-5:2020)
This European Standard was approved by CENELEC on 2020-09-22. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61968-5:2020 E

European foreword
The text of document 57/2223/FDIS, future edition 1 of IEC 61968-5, prepared by IEC/TC 57 “Power
systems management and associated information exchange” was submitted to the IEC-CENELEC
parallel vote and approved by CENELEC as EN IEC 61968-5:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-06-22
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-09-22
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 61968-5:2020 was approved by CENELEC as a European
Standard without any modification.

Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-300 - International Electrotechnical Vocabulary - - -
Electrical and electronic measurements
and measuring instruments - Part 311:
General terms relating to measurements -
Part 312: General terms relating to
electrical measurements - Part 313: Types
of electrical measuring instruments - Part
314: Specific terms according to the type of
instrument
IEC/TS 61968-2 - Application integration at electric utilities - - -
System interfaces for distribution
management - Part 2: Glossary
IEC 61968-9 2013 Application integration at electric utilities - EN 61968-9 2014
System interfaces for distribution
management - Part 9: Interfaces for meter
reading and control
IEC 61968-11 - Application integration at electric utilities - EN 61968-11 -
System interfaces for distribution
management - Part 11: Common
information model (CIM) extensions for
distribution
IEC 61968-100 2013 Application integration at electric utilities - EN 61968-100 2013
System interfaces for distribution
management - Part 100: Implementation
profiles
IEC 62055-31 - Electricity metering - Payment systems - EN 62055-31 -
Part 31: Particular requirements - Static
payment meters for active energy (classes
1 and 2)
IEC/TR 62051 - Electricity metering - Glossary of terms - -
IEC/TR 62357-1 2016 Power systems management and - -
associated information exchange - Part 1:
Reference architecture
IEEE 1547 2018 IEEE Standard for Interconnection and - -
Interoperability of Distributed Energy
Resources with Associated Electric Power
Systems Interfaces
IEC 61968-5 ®
Edition 1.0 2020-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Application integration at electric utilities – System interfaces for distribution

management –
Part 5: Distributed energy optimization

Intégration d'applications pour les services électriques – Interfaces système

pour la gestion de distribution –

Partie 5: Optimisation de l'énergie distribuée

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 33.200 ISBN 978-2-8322-8705-7

– 2 – IEC 61968-5:2020 © IEC 2020
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 9
2 Normative references . 10
3 Terms, definitions and abbreviated terms . 11
3.1 Terms and definitions . 11
3.2 Abbreviated terms . 11
4 Conventions . 12
4.1 UML diagrams. 12
4.2 Units of measure in DER enterprise integration profiles . 12
5 DER enterprise integration use cases . 12
5.1 General . 12
5.2 DER Group creation . 15
5.2.1 General . 15
5.2.2 Grouping requirements . 15
5.2.3 Challenges posed by dynamic distribution system configurations . 15
5.2.4 Challenges posed by enterprise information models . 17
5.2.5 Using arbitrarily-defined groups for DER aggregation . 19
5.3 Maintenance of DERGroups . 21
5.3.1 General . 21
5.3.2 DER Group maintenance example . 22
5.4 DER Group queries . 24
5.5 DER Group status monitoring . 25
5.6 DER Group forecast . 27
5.7 DER Group dispatch . 30
5.8 DER Group Connect/Disconnect . 32
5.9 DER group capability discovery. 32
5.10 DER group voltage regulation function . 33
Annex A (normative) Data requirements for DERMS profiles . 34
A.1 General . 34
A.2 DERGroups profile (constrained version) . 34
A.3 DERGroups profile (unconstrained version) . 35
A.4 DERGroupDispatches profile (constrained version) . 35
A.5 DERGroupDispatches profile (unconstrained version) . 36
A.6 DERGroupForecasts (constrained) . 36
A.7 DERGroupForecasts (unconstrained) . 37
A.8 DERGroupStatuses profile . 37
A.9 EndDeviceControls . 37
A.10 DERGroupQueries . 37
A.11 DERGroupStatusQueries . 38
A.12 DERGroupForecastqueries . 38
Annex B (normative) Super classes . 39
B.1 General . 39
B.2 CurveStyle class . 39
B.3 DERCurveData class . 39
B.4 DERFunction class . 39

IEC 61968-5:2020 © IEC 2020 – 3 –
B.5 DERMonitorableParameter class. 40
B.6 DERNamePlate class . 40
B.7 DispatchSchedule class . 42
B.8 EndDevice class . 42
B.9 EndDeviceGroup class . 43
B.10 EndDeviceGroup (constrained) for dispatches and forecasts . 43
B.11 EndDeviceGroup (unconstrained) for dispatches and forecasts . 43
B.12 Names . 44
B.13 NameType . 44
B.14 NameTypeAuthority . 44
B.15 Status class . 44
B.16 Version class .
...