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IEC TR 62746-2:2015

(Main)

Systems interface between customer energy management system and the power management system - Part 2: Use cases and requirements

Systems interface between customer energy management system and the power management system - Part 2: Use cases and requirements

IEC TR 62746-2:2015(EN) describes the main pillars of interoperability to assist different Technical Committees in defining their interfaces and messages covering the whole chain between a smart grid and smart home/building/industrial area. The main topics covered by this technical report are: architecture model from a logical point of view; set of user stories describing a number of situations related to energy flexibility and demand side management; set of use cases based on the user stories and architecture; details of the communication; identified in the use cases, by describing the requirements for messages and information to be exchanged.

General Information

Status
Published
Publication Date
21-Apr-2015
ICS
01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
33.200 - Telecontrol. Telemetering
Technical Committee
TC 57 - Power systems management and associated information exchange
Drafting Committee
WG 21 - TC 57/WG 21
Current Stage
PPUB - Publication issued
Start Date
30-Jun-2015
Completion Date
22-Apr-2015
Ref Project

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IEC TR 62746-2:2015 - Systems interface between customer energy management system and the power management system - Part 2: Use cases and requirementsIEC TR 62746-2:2015 - Systems interface between customer energy management system and the power management system - Part 2: Use cases and requirements
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IEC TR 62746-2:2015 - Systems interface between customer energy management system and the power management system - Part 2: Use cases and requirements
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IEC TR 62746-2 ®
Edition 1.0 2015-04
TECHNICAL
REPORT
colour
inside
Systems interface between customer energy management system and the power
management system –
Part 2: Use cases and requirements
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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IEC TR 62746-2 ®
Edition 1.0 2015-04
TECHNICAL
REPORT
colour
inside
Systems interface between customer energy management system and the power

management system –
Part 2: Use cases and requirements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.200 ISBN 978-2-8322-2631-5

– 2 – IEC TR 62746-2:2015 © IEC 2015
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 11
2 Terms, definitions and abbreviations . 12
2.1 Terms and definitions. 12
2.2 Abbreviations . 18
3 Requirements . 19
3.1 Common architecture model – architectural requirements . 19
3.2 SG CP (Smart Grid Connection Point) . 24
3.2.1 Scope . 24
3.2.2 Definition of SG CP (Smart Grid Connection Point) . 24
3.2.3 Purpose of definition of SG CP (Smart Grid Connection Point) . 24
3.2.4 Target of demand / supply of power and information that is sent and
received . 25
3.2.5 Functional requirement of SG CP (Smart Grid Connection Point) . 25
3.3 Communication requirements for the Smart Grid and the Smart Grid
Connection Point (interface into the premises) . 26
3.4 Common messages – information to be exchanged . 27
3.4.1 General . 27
3.4.2 Intention of user stories and use cases . 27
3.4.3 Relationship of user stories and use cases . 29
3.4.4 Requirements for information exchange . 29
3.4.5 Energy management concepts . 40
3.4.6 Function-specific profiles . 42
3.4.7 Comfort, management and status information . 48
3.4.8 Upcoming profiles for new service requirements . 48
Annex A (informative) User stories and use cases collection . 49
A.1 User stories . 49
A.1.1 General . 49
A.1.2 JWG1 Flex start washing machine . 49
A.1.3 JWG2 Flex start EV charging . 50
A.1.4 JWG3 Severe grid stability issues . 51
A.1.5 JWG4 Power limitation PV . 51
A.1.6 JWG5 CEM manages devices . 52
A.1.7 JWG6 Customer sells flexibility . 52
A.1.8 JWG7 Customer sells decentralized energy . 53
A.1.9 JWG8 Grid-related emergency situations . 53
A.1.10 JWG9 Customer connects new smart device . 54
A.1.11 JWG10 Energy consumption information . 54
A.1.12 JWG11 Unexpected disconnect . 54
A.1.13 JWG12 ExpectedYearlyCostsOfSmartDevice . 54
A.1.14 JWG13 Energy storage and feed in based on tariff . 55
A.1.15 JWG14 EnergyConsumptionManagementFromExternal . 55
A.1.16 JWG15 Manage in-premises battery system . 56
A.1.17 JWG16 Manage DER . 56
A.1.18 JWG17 Peak shift contribution by battery aggregation . 56

A.1.19 JWG18 Control appliances based on price information . 57
A.1.20 JWG19 Control appliances based on energy savings signal . 57
A.1.21 JWG20 Control appliances before power cut . 58
A.1.22 JWG21 Control appliances in case of natural disaster . 58
A.1.23 JWG22 Bilateral DR-negawatt . 59
A.1.24 JWG23 User story lighting . 60
A.1.25 JWG24 Energy market flexibility management . 60
A.1.26 Japanese building scenarios on energy management . 62
A.2 User stories and use case mapping table . 65
A.3 Use case descriptions . 70
A.3.1 Overview . 70
A.3.2 High level use case (JWG1100) Flexible start of a smart device (SD) . 71
A.3.3 Specialized use case (JWG1101) SD informs CEM about flexible start . 77
A.3.4 Specialized use case (JWG-SPUC1102) CEM informs SD about starting
time . 83
A.3.5 Specialized use case (JWG1103) CEM informs SD about slot shift . 88
A.3.6 Specialized use case (JWG1110) Control of Smart home appliances
based on price information by time slot . 93
A.3.7 High level use case (JWG1111) fuel cell operation with fixed tariff
profile . 100
A.3.8 High level use case (JWG112x) manage mixed energy system like heat
pumps with pv, storage battery . 107
A.3.9 High level use case (JWG113x) log mixed energy system events of heat
pumps with pv, storage battery . 115
A.3.10 High level use case (JWG120x) Provide local power managing
capabilities . 123
A.3.11 High level use case (JWG121x) Provide local power managing
capabilities . 130
A.3.12 High level use case (JWG2000) Demand Supply Adjustment . 137
A.3.13 High level use case (JWG2001) Cascaded CEM . 147
A.3.14 High level use case (JWG2002) District Energy Management . 154
A.3.15 High level use case (JWG2010) Information exchange on distributed
power systems with RES . 163
A.3.16 High level use case (JWG202x) Peak Shift Contribution by Battery
Aggregation . 171
A.3.17 High level use case (JWG2041) Power Adjustment Normal Conditions . 200
A.3.18 High level use case (JWG2042) Energy accommodation for buildings
under disaster conditions . 207
A.3.19 High level use case (JWG211x, based on WGSP211x) Tariff-
Consumption information exchange . 214
A.3.20 High level use case (WGSP 211x) Exchanging information on
consumption, price device status, and warnings with external actors and
within the home . 236
A.3.21 High level use case (JWG212x, based on WGSP212x) Direct load-
generation management (international) . 261
A.3.22 High level use case (WGSP2120) Direct load / generation management
(European) . 281
A.3.23 high level use case (WGSP2140) Tariff synchronization . 299
A.3.24 High level use case (JWG30xx) Energy Flexibility Management . 311
A.3.25 Specialized use case (JWG3101) Energy production/storage integration . 332
A.3.26 Specialized use case (JWG3102) Power loss notification and analysis . 339

– 4 – IEC TR 62746-2:2015 © IEC 2015
A.3.27 Specialized use case (JWG3103) Historical data visualization (external
data processing and storage) . 345
Bibliography . 350

Figure 1 – Examples of demand response capabilities . 10
Figure 2 – Smart environment as of today . 11
Figure 3 – Requirements for interoperability. 12
Figure 4 – External actor definition . 15
Figure 5 – Internal actor definition . 15
Figure 6 – Smart Grid Coordination Group Functional Architecture Model (Smart Grid
Coordination Group Sustainable Process (EU M490)) [9] . 19
Figure 7 – Interfaces in the Func
...

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