The success of the Smart Grid and Smart Home/Building/Industrial approach is very much related to interoperability, which means that Smart Grid and all smart devices in a Home/Building/Industrial environment have a common understanding of messages and data in a defined interoperability area (in a broader perspective, it does not matter if it as an energy related message, a management message or an informative message).

In contradiction, today’s premises are covered by different networks and stand alone devices (see Figure 2).

The scope of this technical report is to describe 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 (see Figure 3).

The main topics of this technical report are:

To describe an architecture model from a logical point of view;
To describe a set of user stories that describe a number of situations related to energy flexibility and demand side management as well as an outline of potential upcoming Smart Building and Smart Home scenarios. The set of user stories does not have the ambition to list all home and building (energy) management possibilities, but is meant as a set of examples that are used as input in use cases and to check that the set of use cases is complete;
To describe a set of use cases based on the user stories and architecture. The use cases describe scenarios in which the communication between elements of the architecture are identified;
To further detail the communication, identified in the use cases, by describing the requirements for messages and information to be exchanged.

This technical report can also be used as a blue print for further smart home solutions like remote control, remote monitoring, ambient assistant living and so forth.

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PDF Pages	PDF Title
4	CONTENTS
8	FOREWORD
10	INTRODUCTION
12	Figures Figure 1 – Examples of demand response capabilities
13	1 Scope Figure 2 – Smart environment as of today
14	2 Terms, definitions and abbreviations 2.1 Terms and definitions Figure 3 – Requirements for interoperability
17	Figure 4 – External actor definition Figure 5 – Internal actor definition
20	2.2 Abbreviations
21	3 Requirements 3.1 Common architecture model – architectural requirements Figure 6 – Smart Grid Coordination Group Functional Architecture Model (Smart Grid Coordination Group Sustainable Process (EU M490)) [9]
22	Figure 7 – Interfaces in the Functional Architecture Model
23	Figure 8 – Neutral interfaces Figure 9 – Mapping I/F structure
24	Figure 10 – Example of a mapping of messages Figure 11 – Different CEM configurations see SG-CG/M490 [5] to [9]
25	Figure 12 – Physical combinations Figure 13 – Examples of CEM architecture
26	3.2 SG CP (Smart Grid Connection Point) 3.2.1 Scope 3.2.2 Definition of SG CP (Smart Grid Connection Point) 3.2.3 Purpose of definition of SG CP (Smart Grid Connection Point) Figure 14 – “Group of domains” and “Functional Architecture Model”
27	3.2.4 Target of demand / supply of power and information that is sent and received 3.2.5 Functional requirement of SG CP (Smart Grid Connection Point)
28	3.3 Communication requirements for the Smart Grid and the Smart Grid Connection Point (interface into the premises) Figure 15 – Smart Grid Connection Point SG CP Figure 16 – SG CP (in the case of interruption of electricalpower supply from energy supplier)
29	3.4 Common messages – information to be exchanged 3.4.1 General 3.4.2 Intention of user stories and use cases
30	Figure 17 – User stories and use cases process
31	3.4.3 Relationship of user stories and use cases 3.4.4 Requirements for information exchange Figure 18 – Relationship user stories and use cases
32	Figure 19 – Examples of information to be exchanged
33	Figure 20 – Sequence Diagram Flexible Start Figure 21 – Sequence diagram price and environmental information
34	Figure 22 – Sequence diagram starting time Tables Table 1 – Information requirements collection
42	3.4.5 Energy management concepts
43	Figure 23 – Traffic Light Concept
44	3.4.6 Function-specific profiles
45	Figure 24 – Structure of a power profile
46	Figure 25 – Consumption and generation Figure 26 – Structure of an easy power profile
47	Table 2 – Information requirements “Energy Profile”
48	Figure 27 – Structure of a price profile Table 3 – Information requirements “Price and Environment Profile”
49	Figure 28 – Structure of a load / generation management profile Table 4 – Information requirements “Direct Load / Generation Management Profile”
50	3.4.7 Comfort, management and status information 3.4.8 Upcoming profiles for new service requirements Figure 29 – Structure of a temperature profile Table 5 – Information requirements “Temperature Profile”
51	Annex A (informative) User stories and use cases collection A.1 User stories A.1.1 General A.1.2 JWG1 Flex start washing machine Figure A.1 – Kinds of user stories
52	A.1.3 JWG2 Flex start EV charging
53	A.1.4 JWG3 Severe grid stability issues A.1.5 JWG4 Power limitation PV
54	A.1.6 JWG5 CEM manages devices A.1.7 JWG6 Customer sells flexibility
55	A.1.8 JWG7 Customer sells decentralized energy A.1.9 JWG8 Grid-related emergency situations
56	A.1.10 JWG9 Customer connects new smart device A.1.11 JWG10 Energy consumption information A.1.12 JWG11 Unexpected disconnect A.1.13 JWG12 ExpectedYearlyCostsOfSmartDevice
57	A.1.14 JWG13 Energy storage and feed in based on tariff A.1.15 JWG14 EnergyConsumptionManagementFromExternal
58	A.1.16 JWG15 Manage in-premises battery system A.1.17 JWG16 Manage DER A.1.18 JWG17 Peak shift contribution by battery aggregation
59	A.1.19 JWG18 Control appliances based on price information A.1.20 JWG19 Control appliances based on energy savings signal
60	A.1.21 JWG20 Control appliances before power cut A.1.22 JWG21 Control appliances in case of natural disaster
61	A.1.23 JWG22 Bilateral DR-negawatt
62	A.1.24 JWG23 User story lighting A.1.25 JWG24 Energy market flexibility management
64	A.1.26 Japanese building scenarios on energy management
67	A.2 User stories and use case mapping table
68	Table A.1 – User stories – Use case mapping table
72	A.3 Use case descriptions A.3.1 Overview Figure A.2 – Use case and requirements process Figure A.3 – Smart Grid Coordination Group Architecture Model [9]
73	A.3.2 High level use case (JWG1100) Flexible start of a smart device (SD)
75	Figure A.4 – SG CG Architecture Model [9]
79	A.3.3 Specialized use case (JWG1101) SD informs CEM about flexible start
81	Figure A.5 – Sequence diagram Figure A.6 – SG CG Architecture Model [9]
85	A.3.4 Specialized use case (JWG-SPUC1102) CEM informs SD about starting time
86	Figure A.7 – Sequence diagram
87	Figure A.8 – SG CG Architecture Model [9]
90	A.3.5 Specialized use case (JWG1103) CEM informs SD about slot shift
91	Figure A.9 – SG CG Architecture Model [9]
95	A.3.6 Specialized use case (JWG1110) Control of Smart home appliances based on price information by time slot
97	Figure A.10 – Sequence diagram Figure A.11 – SG CG Architecture Model [9]
102	A.3.7 High level use case (JWG1111) fuel cell operation with fixed tariff profile
105	Figure A.12 – SG CG Architecture Model [9]
109	A.3.8 High level use case (JWG112x) manage mixed energy system like heat pumps with pv, storage battery
113	Figure A.13 – Sequence Diagram Figure A.14 – SG CG Architecture Model [9]
117	A.3.9 High level use case (JWG113x) log mixed energy system events of heat pumps with pv, storage battery
121	Figure A.15 – Sequence diagram
122	Figure A.16 – SG CG Architecture Model [9]
125	A.3.10 High level use case (JWG120x) Provide local power managing capabilities
128	Figure A.17 – Sequence diagram
129	Figure A.18 – SG CG Architecture Model [9]
132	A.3.11 High level use case (JWG121x) Provide local power managing capabilities
135	Figure A.19 – Sequence diagram Figure A.20 – SG CG Architecture Model [9]
139	A.3.12 High level use case (JWG2000) Demand Supply Adjustment
143	Figure A.21 – Sequence diagram
149	A.3.13 High level use case (JWG2001) Cascaded CEM
151	Figure A.22 – Sequence diagram
156	A.3.14 High level use case (JWG2002) District Energy Management
159	Figure A.23 – Sequence diagram
165	A.3.15 High level use case (JWG2010) Information exchange on distributed power systems with RES
168	Figure A.24 – Sequence diagram
173	A.3.16 High level use case (JWG202x) Peak Shift Contribution by Battery Aggregation
183	Figure A.25 – Use case diagram
202	A.3.17 High level use case (JWG2041) Power Adjustment Normal Conditions
204	Figure A.26 – Sequence diagram
209	A.3.18 High level use case (JWG2042) Energy accommodation for buildings under disaster conditions
211	Figure A.27 – Sequence diagram
216	A.3.19 High level use case (JWG211x, based on WGSP211x) Tariff-Consumption information exchange
223	Figure A.28 – Sequence diagram
224	Figure A.29 – SG CG Architecture Model [9]
238	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
263	A.3.21 High level use case (JWG212x, based on WGSP212x) Direct load-generation management (international)
268	Figure A.30 – Sequence diagram
269	Figure A.31 – SG CG Architecture Model [9]
283	A.3.22 High level use case (WGSP2120) Direct load / generation management (European)
286	Figure A.32 – SG CG Architecture Model [9]
291	Figure A.33 – Sequence diagram
296	Figure A.34 – Sequence diagram
298	Figure A.35 – Sequence diagram
301	A.3.23 high level use case (WGSP2140) Tariff synchronization
304	Figure A.36 – SG CG Architecture Model [9]
308	Figure A.37 – Sequence diagram
310	Figure A.38 – Sequence diagram
311	Figure A.39 – Sequence diagram
312	Figure A.40 – Sequence diagram
313	A.3.24 High level use case (JWG30xx) Energy Flexibility Management
334	A.3.25 Specialized use case (JWG3101) Energy production/storage integration
341	A.3.26 Specialized use case (JWG3102) Power loss notification and analysis
347	A.3.27 Specialized use case (JWG3103) Historical data visualization (external data processing and storage)
352	Bibliography

Published By	Publication Date	Number of Pages
BSI	2015	354


PDF Format	Searchable	Printable	Preview Now

Status	Definitive
Pages	354
Publication Date	2015-05-31
ISBN	978 0 580 88007 0
Standard Number	PD IEC/TR 62746-2:2015
Title	Systems interface between customer energy management system and the power management system – Use cases and requirements
Identical National Standard Of	IEC TR 62746-2:2015
Descriptors	Energy technology, Application program interface, Information systems, Information exchange, Computer programs, Electric power systems, Data processing, Control systems, Data transfer, Data transmission, Interfaces (data processing), Systemology, Computerized control, Energy distribution, Electric power generation, Electric power transmission
Publisher	BSI
Committee	PEL/57
ICS Codes	33.200 - Telecontrol. Telemetering

BSI PD IEC/TR 62746-2:2015

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