General requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Part 12-2: Smart grid - Application specification - Interface and framework for customer - Interface between the Home / Building CEM and Resource manager(s) - Data model and messaging

This document specifies the fundamental aspects of semantic interoperability for the S2 interface and the related data exchange between a CEM and the Resource Managers within the premises. It provides a technology independent set of data models and interaction patterns in order to enable applications for Energy Management within the premises. This document does not include:
—   mappings to concrete data representations (XML, JSON and similar);
—   mappings to application protocols for the message passing;
—   security related aspects.

Allgemeine Anforderungen an die Elektrische Systemtechnik für Heim und Gebäude (ESHG) und an Systeme der Gebäudeautomation (GA) – Teil 12-2: Smart grid – Anwendungsspezifikation – Schnittstelle und Modell für Anwender – Schnittstelle zwischen dem Heim-/Gebäude CEM und den Ressourcenmanagern – Datenmodell und Informationsaustausch

Exigences générales relatives aux systèmes électroniques pour les foyers domestiques et les bâtiments (HBES) et aux systèmes de gestion technique du bâtiment (SGTB) - Partie 12-2 : Réseau intelligent - Spécification d'application - Interface entre le gestionnaire d'énergie pour le client (CEM, Customer Energy Manager) et le gestionnaire de ressources pour foyers domestiques/bâtiments - Modèle de données et échange de messages

Le présent document spécifie les aspects fondamentaux de l'interopérabilité sémantique de l'interface S2 et l'échange de données connexe entre un CEM et les gestionnaires de ressources à l'intérieur des locaux. Elle fournit un ensemble de modèles de données et de modèles d'interaction indépendant de la technologie afin de prévoir des applications de gestion de l'énergie à l'intérieur des locaux. Le présent document n'inclut pas:
—   les mappings vers les représentations de données concrètes (XML, JSON et apparentés);
—   les mappings vers des protocoles d'application pour l'envoi de messages;
—   les aspects relatifs à la sécurité.

Splošne zahteve za stanovanjske in stavbne elektronske sisteme (HBES) in sisteme za avtomatizacijo in krmiljenje stavb (BACS) - 12-2. del: Pametno omrežje - Aplikacijske specifikacije - Vmesnik in okvir za odjemalca - Vmesnik med upravljalcem stanovanjskih in stavbnih virov (CEM) - Podatkovni model in izmenjava podatkov

Ta dokument določa temeljne vidike semantične interoperabilnosti za vmesnik S2 in s tem povezane izmenjave podatkov med CEM in upravljavci virov v prostorih. Zagotavlja tehnološko neodvisen nabor podatkovnih modelov in vzorcev interakcije, ki v prostorih omogočajo aplikacije za upravljanje z energijo. Ta dokument ne vključuje:
–   preslikav v konkretne predstavitve podatkov (XML, JSON in podobno);
–   preslikav v aplikacijske protokole za posredovanje sporočil;
–   vidikov, povezanih z varnostjo.

General Information

Status
Published
Public Enquiry End Date
29-Oct-2020
Publication Date
08-Jun-2022
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
02-Jun-2022
Due Date
07-Aug-2022
Completion Date
09-Jun-2022

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SLOVENSKI STANDARD
SIST EN 50491-12-2:2022
01-julij-2022
Splošne zahteve za stanovanjske in stavbne elektronske sisteme (HBES) in

sisteme za avtomatizacijo in krmiljenje stavb (BACS) - 12-2. del: Pametno omrežje

- Aplikacijske specifikacije - Vmesnik in okvir za odjemalca - Vmesnik med
upravljalcem stanovanjskih in stavbnih virov (CEM) - Podatkovni model in
izmenjava podatkov

General requirements for Home and Building Electronic Systems (HBES) and Building

Automation and Control Systems (BACS) - Part 12-2: Smart grid - Application

specification - Interface and framework for customer - Interface between the Home /

Building CEM and Resource manager(s) - Data model and messaging

Exigences générales relatives aux systèmes électroniques pour les foyers domestiques

et les bâtiments (HBES) et aux systèmes de gestion technique du bâtiment (SGTB) -

Partie 12-2 : Réseau intelligent - Spécification d'application - Interface entre le

gestionnaire d'énergie pour le client (CEM, Customer Energy Manager) et le

gestionnaire de ressources pour foyers domestiques/bâtiments - Modèle de données et

échange de messages
Ta slovenski standard je istoveten z: EN 50491-12-2:2022
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
SIST EN 50491-12-2:2022 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 50491-12-2:2022
---------------------- Page: 2 ----------------------
SIST EN 50491-12-2:2022
EUROPEAN STANDARD EN 50491-12-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2022
ICS 91.140.50; 97.120
English Version
General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) -
Part 12-2: Smart grid - Application specification - Interface and
framework for customer - Interface between the Home / Building
CEM and Resource manager(s) - Data model and messaging

Exigences générales relatives aux systèmes électroniques Allgemeine Anforderungen an die Elektrische

pour les foyers domestiques et les bâtiments (HBES) et aux Systemtechnik für Heim und Gebäude (ESHG) und an

systèmes de gestion technique du bâtiment (SGTB) - Partie Systeme der Gebäudeautomation (GA) - Teil 12-2: Smart

12-2: Réseau intelligent - Spécification d'application - grid - Anwendungsspezifikation - Schnittstelle und Modell

Interface et cadre pour le client - Interface entre le für Anwender - Schnittstelle zwischen dem Heim-/Gebäude

gestionnaire d'énergie pour le client (CEM, Customer CEM und den Ressourcenmanagern - Datenmodell und

Energy Manager) et le gestionnaire de ressources pour Informationsaustausch
foyers domestiques/bâtiments - Modèle de données et
échange de messages

This European Standard was approved by CENELEC on 2022-02-17. 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

© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 50491-12-2:2022 E
---------------------- Page: 3 ----------------------
SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)
1 Contents Page

2 European foreword .................................................................................................................. 6

Introduction ............................................................................................................................. 7

4 1 Scope .............................................................................................................................. 8

5 Normative references ....................................................................................................... 8

6 3 Terms, definitions and abbreviations ................................................................................ 8

7 Terms and definitions .............................................................................................. 8

3.1

8 3.2 Abbreviations ........................................................................................................ 10

9 4 Energy management ...................................................................................................... 11

10 4.1 Architectural overview ........................................................................................... 11

11 Definition .............................................................................................................. 12

4.2

12 4.3 Energy Management roles ..................................................................................... 13

13 4.3.1 General ......................................................................................................... 13

14 4.3.2 Energy producer role ..................................................................................... 13

15 4.3.3 Energy consumer role .................................................................................... 14

16 4.3.4 Energy storage role ....................................................................................... 15

17 Resource Manager ........................................................................................................ 15

18 6 Customer Energy Manager (CEM) .................................................................................. 17

19 General ................................................................................................................. 17

6.1

20 6.2 Local optimization ................................................................................................. 17

21 6.3 Implicit control ....................................................................................................... 17

22 6.4 Explicit control ...................................................................................................... 18

23 6.5 Summary .............................................................................................................. 18

24 7 Energy Management Concepts ...................................................................................... 19

25 7.1 General ................................................................................................................. 19

26 7.2 Design philosophy ................................................................................................. 19

27 7.3 Abnormal condition ............................................................................................... 19

28 7.4 Power measurements ............................................................................................ 20

29 Power forecasts .................................................................................................... 20

7.5

30 7.6 Control types......................................................................................................... 20

31 7.6.1 General ......................................................................................................... 20

32 7.6.2 Power Envelope Based Control ...................................................................... 20

33 7.6.3 Power Profile Based Control .......................................................................... 23

34 7.6.4 Operation Mode Based Control ...................................................................... 25

35 Fill Rate Based Control .................................................................................. 27

7.6.5

36 7.6.6 Demand Driven Based Control ....................................................................... 30

37 8 Energy Management Data Models .................................................................................. 31

38 8.1 Basic Data Types .................................................................................................. 31

39 General ......................................................................................................... 31

8.1.1

40 8.1.2 Common concepts related to Time ................................................................. 32

41 8.1.3 Common concepts related to Identifiers .......................................................... 32

42 8.1.4 Common concepts related to Strings .............................................................. 32

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SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)

43 8.1.5 Meaning of optionality .................................................................................... 32

44 8.2 Resource Manager ................................................................................................ 33

45 8.2.1 ResourceManagerDetails ............................................................................... 33

46 8.2.2 PowerValue ................................................................................................... 34

47 8.2.3 PowerForecastValue ...................................................................................... 34

48 PowerRange .................................................................................................. 35

8.2.4

49 8.2.5 NumberRange................................................................................................ 35

50 8.2.6 PowerMeasurement ....................................................................................... 35

51 8.2.7 Role ............................................................................................................... 36

52 8.2.8 ReceptionStatus ............................................................................................ 36

53 8.2.9 Transition ...................................................................................................... 36

54 Timer ............................................................................................................. 37

8.2.10

55 8.2.11 InstructionStatusUpdate ................................................................................. 37

56 8.3 Power Forecast ..................................................................................................... 38

57 8.3.1 Description .................................................................................................... 38

58 8.3.2 PowerForecast ............................................................................................... 38

59 8.3.3 PowerForecastElement .................................................................................. 39

60 Control Types ....................................................................................................... 40

8.4

61 8.4.1 Power Envelope Based Control ...................................................................... 40

62 8.4.2 Power Profile Based Control .......................................................................... 43

63 8.4.3 Operation Mode Based Control ...................................................................... 48

64 8.4.4 Fill Rate Based Control .................................................................................. 50

65 8.4.5 Demand Driven Based Control ....................................................................... 57

66 Enumerations ........................................................................................................ 61

8.5

67 8.5.1 RoleType ....................................................................................................... 61

68 8.5.2 Commodity .................................................................................................... 61

69 8.5.3 CommodityQuantity ........................................................................................ 61

70 8.5.4 Currency ........................................................................................................ 62

71 8.5.5 InstructionStatus ............................................................................................ 62

72 ControlType ................................................................................................... 64

8.5.6

73 8.5.7 PEBC.PowerEnvelopeLimitType ..................................................................... 65

74 8.5.8 PEBC.PowerEnvelopeConsequenceType ....................................................... 65

75 8.5.9 ReceptionStatusValues .................................................................................. 65

76 8.5.10 PPBC.PowerSequenceStatus ......................................................................... 66

77 9 Communication .............................................................................................................. 66

78 9.1 Introduction ........................................................................................................... 66

79 9.2 Generic tasks ........................................................................................................ 67

80 9.2.1 Update Resource Manager Details ................................................................. 67

81 9.2.2 Activate Control Type ..................................................................................... 67

82 Update Active Control Type ........................................................................... 68

9.2.3

83 9.2.4 Communicate Power Measurement ................................................................ 68

84 9.2.5 Update Power Forecast .................................................................................. 69

85 9.2.6 Revoke Power Forecast ................................................................................. 69

86 9.3 Power Envelope Based Control Tasks ................................................................... 70

87 9.3.1 Update Power Constraints ............................................................................. 70

88 Revoke Power Constraints ............................................................................. 70

9.3.2

89 9.3.3 Update Energy Constraints ............................................................................ 71

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SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)

90 9.3.4 Revoke Energy Constraints ............................................................................ 72

91 9.3.5 Process Instruction ........................................................................................ 72

92 9.3.6 Revoke Instruction ......................................................................................... 73

93 9.4 Power Profile Based Control Tasks ....................................................................... 73

94 9.4.1 Update Power Profile Definition ...................................................................... 73

95 Revoke Power Profile Definition ..................................................................... 74

9.4.2

96 9.4.3 Process Schedule Instruction ......................................................................... 74

97 9.4.4 Revoke Schedule Instruction .......................................................................... 75

98 9.4.5 Process Start Interruption Instruction ............................................................. 76

99 9.4.6 Revoke Start Interruption Instruction .............................................................. 76

100 9.4.7 Process End Interruption Instruction ............................................................... 77

101 Revoke End Interruption Instruction ............................................................... 78

9.4.8

102 9.5 Operation Mode Based Control Tasks ................................................................... 78

103 9.5.1 Update System Description ............................................................................ 78

104 9.5.2 Revoke System Description ........................................................................... 79

105 9.5.3 Process Instruction ........................................................................................ 79

106 9.5.4 Revoke Instruction ......................................................................................... 80

107 Fill Rate Based Control Tasks ............................................................................... 81

9.6

108 9.6.1 Update System Description ............................................................................ 81

109 9.6.2 Revoke System Description ........................................................................... 81

110 9.6.3 Update Leakage Behaviour ............................................................................ 82

111 9.6.4 Revoke Leakage Behaviour............................................................................ 82

112 9.6.5 Update Usage Forecast ................................................................................. 83

113 Revoke Usage Forecast ................................................................................. 83

9.6.6

114 9.6.7 Update Fill Level Target Profile ...................................................................... 84

115 9.6.8 Revoke Fill Level Target Profile ..................................................................... 84

116 9.6.9 Process Instruction ........................................................................................ 85

117 9.6.10 Revoke Instruction ......................................................................................... 85

118 9.7 Demand Driven Based Control Tasks .................................................................... 86

119 Update System Description ............................................................................ 86

9.7.1

120 9.7.2 Revoke System Description ........................................................................... 87

121 9.7.3 Update Average Demand Rate Forecast ........................................................ 87

122 9.7.4 Revoke Average Demand Rate Forecast ........................................................ 88

123 9.7.5 Process Instruction ........................................................................................ 88

124 9.7.6 Revoke Instruction ......................................................................................... 89

125

Annex A (informative) Use Cases ......................................................................................... 90

126 A.1 Overview ............................................................................................................... 90

127 A.2 Organizing ............................................................................................................ 91

128 A.2.1 UC_EM_O100: Configuring CEM in network ................................................... 91

129 UC_EM_O101: Configuring master CEM with Smart Grid Operator Credentials91
A.2.2

130 A.3 Scheduling ............................................................................................................ 92

131 A.3.1 UC_EM_S200: CEM collects Energy Profiles, Tariff Profiles and Storage Details

132 92

133 A.4 Management ......................................................................................................... 93

134 A.4.1 UC_EM_M300: CEM selects alternative Energy Sequences by energy costs .. 93

135 UC_EM_M301 CEM modifies start time of Energy Sequence .......................... 93

A.4.2
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SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)

136 A.4.3 UC_EM_M302: CEM changes an Energy Profile to make temporary use of stored

137 energy ........................................................................................................... 94

138 A.4.4 UC_EM_M303: Demanded power cannot be delivered by domestic grid ......... 94

139 A.4.5 UC_EM_M304: Two electric vehicles conflicting in their power load ................ 94

140 A.4.6 UC_EM_M305: EMG requests temporarily energy saving ............................... 95

141 UC_EM_M306: Energy Storage requests high priority .................................... 96

A.4.7

142 A.5 Case studies ......................................................................................................... 97

143 A.5.1 UC_EM_M307 Charging an EV in the context of JWG4 (“Power Limitation PV”)

144 with the dynamic control mode of ISO/DIS 15118-20 ...................................... 97

145 A.5.2 UC_EM_M308: Charging an EV in the context of JWG4 (“Power Limitation PV”)

146 with the scheduled control mode of ISO 15118 series and monetary incentives98

147

Bibliography ........................................................................................................................ 100

148
---------------------- Page: 7 ----------------------
SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)
149 European foreword

150 This document (EN 50491-12-2:2022) has been prepared by CLC/TC TC 205, “Home and Building Electronic

151 Systems (HBES)”.
152 The following dates are fixed:
• latest date by which this document has to be (dop) 2023-02-17
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2025-02-17
conflicting with this document have to be
withdrawn

153 Any feedback and questions on this document should be directed to the users’ national committee. A

154 complete listing of these bodies can be found on the CENELEC website.

155 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

156 rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

157 This document is part of the EN 50491 series of European Standards — General requirements for Home and

158 Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS), which will

159 comprise the following parts:
160 — Part 1: General requirements;
161 — Part 2: Environmental Conditions;
162 — Part 3: Electric Safety Requirements;

163 — Part 4-1: General functional safety requirements for products intended to be integrated in Building

164 Electronic Systems (HBES) and Building Automation and Control Systems (BACS);

165 — Part 5-1: EMC requirements, conditions and test set-up;

166 — Part 5-2: EMC requirements for HBES/BACS used in residential, commercial and light industry

167 environment;
168 — Part 5-3: EMC requirements for HBES/BACS used in industry environment;
169 — Part 6-1: HBES installations — Installation and planning;
170 — Part 6-3: HBES installations — Assessment and definition of levels;

171 — Part 11: Smart Metering — Application Specification — Simple External Consumer Display;

172 — Part 12: Smart grid — Application specification — Interface and framework for customer;

173 — Part 12-1: Interface between the CEM and Home/Building Resource manager– General Requirements

174 and Architecture;

175 — Part 12-2: Interface between the Home/Building CEM and Resource manager(s)– Data model and

176 messaging;
177 — Future Part 12-3: Home/Building Customer Energy Manager (CEM);
178 — Future Part 12-4: Resource Manager.
---------------------- Page: 8 ----------------------
SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)
179 Introduction

180 Over recent decades, energy production and its consumption patterns have changed dramatically. Although

181 central energy production is still dominant, the trend for distributed production is distinctive following an

182 increasing number of renewables. Alternative energy sources are highly fluctuating in their production

183 capabilities, which may result in the grid operators having difficulty to keep a balance between energy

184 production and consumption. The complexity of keeping the grid reliable is further increased by the change in

185 the electric energy consumption and production of the customer itself, e.g. the use of electric vehicles and

186 personal generation facilities.

187 A Smart Grid that allows the grid operator to be flexible and reactive is needed. Such reactivity requires a

188 communication flow between energy consuming and producing entities, from single family houses to large

189 factories.

190 The EN 50491-12 series describes aspects of the smart grid that relate specifically to the premises

191 (home/building) part of the smart grid and describes the common interface between equipment in the

192 premises and the smart grid. This part 2 of the series defines the fundamental aspects of semantic

193 interoperability for the S2 interface and the related data exchange between a CEM and the Resource

194 Managers within the premises.

195 Different use cases are explained in Annex A, which should help to understand the philosophy of this

196 document.
---------------------- Page: 9 ----------------------
SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)
197 1 Scope

198 This document specifies the fundamental aspects of semantic interoperability for the S2 interface and the

199 related data exchange between a CEM and the Resource Managers within the premises. It provides a

200 technology independent set of data models and interaction patterns in order to enable applications for Energy

201 Management within the premises. This document does not include:
202 — mappings to concrete data representations (XML, JSON and similar);
203 — mappings to application protocols for the message passing;
204 — security related aspects.
205 2 Normative references

206 The following documents are referred to in the text in such a way that some or all of their content constitutes

207 requirements of this document. For dated references, only the edition cited applies. For undated references,

208 the latest edition of the referenced document (including any amendments) applies.

209 ISO/DIS 15118-20, Road vehicles — Vehicle to grid communication interface
210 ISO 4217, Codes for the representation of currencies
211 3 Terms, definitions and abbreviations
212 3.1 Terms and definitions

213 For the purposes of this document, the following terms and definitions apply.

214 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

215 — ISO Online browsing platform: available at https://www.iso.org/obp
216 — IEC Electropedia: available at https://www.electropedia.org/
217 3.1.1
218 Power Envelope Based Control
219 coordination of the CEM based on limitations to the device

220 Note 1 to entry: The CEM can set minimum and maximum values for the power that shall not be exceeded by the

221 device.
222 3.1.2
223 Power Profile Based Control

224 control type where coordination from the CEM is based on profile modification, including concepts of

225 sequence shifting, sequence selection
226 3.1.3
227 Operation Mode Based Control

228 control type where the resource manager offers the CEM multiple operation modes that the CEM could

229 choose from

230 Note 1 to entry: The behaviour of the device will be modified by selecting operation modes.

231 3.1.4
232 Fill Rate Based Control

233 control type based on measurements indicating the fill level and the fill rate

---------------------- Page: 10 ----------------------
SIST EN 50491-12-2:2022
EN 50491-12-2:2022 (E)
234 3.1.5
235 Demand Driven Based Control
236 control type where the CEM can decide how a given demand should be fulfilled
237 3.1.6
238 resource manager

239 software component that exclusively represents a logical group of devices or a single smart device, and is

240 responsible for sending unambiguous instructions to the logical group of devices or to a single device,

241 typically using a device-specific protocol

242 Note 1 to entry: In the context of this document the Resource Manager manages the energy flexibility of a logical group of

243 devices or a single smart device.

244 Note 2 to entry: The Resource Manager may be implemented in a special device, in the smart device itself or outside of

245 the device.

246 Note 3 to entry: The Resource Manager typically consist of a communication handler (information layer, strictly related to

247 data format and protocol handling) and an application handler (application layer, related to functional extensions of the

248 CEM).
249 3.1.7
250 role

251 categorization of the behaviour of a participant by its capabilities related to energy management, each

252 participant at least supporting one
253 3.1
...

SLOVENSKI STANDARD
oSIST prEN 50491-12-2:2020
01-oktober-2020
Splošne zahteve za stanovanjske in stavbne elektronske sisteme (HBES) in

sisteme za avtomatizacijo in krmiljenje stavb (BACS) - 12-2. del: Pametno omrežje

- Aplikacijske specifikacije - Vmesnik in okvir za odjemalca - Vmesnik med
upravljalcem stanovanjskih in stavbnih virov (CEM)

General requirements for Home and Building Electronic Systems (HBES) and Building

Automation and Control Systems (BACS) - Part 12-2: Smart grid – Application

specification - Interface and framework for customer - Interface between the Home /

Building CEM

Exigences générales relatives aux systèmes électroniques pour les foyers domestiques

et les bâtiments (HBES) et aux systèmes de gestion technique du bâtiment (SGTB) -

Partie 12-2 : Réseau intelligent - Spécification d'application - Interface entre le

gestionnaire d'énergie pour le client (CEM, Customer Energy Manager) et le

gestionnaire de ressources pour foyers domestiques/bâtiments - Modèle de données et

échange de messages
Ta slovenski standard je istoveten z: prEN 50491-12-2
ICS:
35.240.67 Uporabniške rešitve IT v IT applications in building
gradbeništvu and construction industry
97.120 Avtomatske krmilne naprave Automatic controls for
za dom household use
oSIST prEN 50491-12-2:2020 en,fr

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 50491-12-2:2020
---------------------- Page: 2 ----------------------
oSIST prEN 50491-12-2:2020
EUROPEAN STANDARD DRAFT
prEN 50491-12-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS
English Version
General requirements for Home and Building Electronic Systems
(HBES) and Building Automation and Control Systems (BACS) -
Part 12-2: Smart grid - Application specification - Interface and
framework for customer - Interface between the Home / Building
CEM
Exigences générales relatives aux systèmes électroniques To be completed
pour les foyers domestiques et les bâtiments (HBES) et aux
systèmes de gestion technique du bâtiment (SGTB) - Partie
12-2 : Réseau intelligent - Spécification d'application -
Interface entre le gestionnaire d'énergie pour le client
(CEM, Customer Energy Manager) et le gestionnaire de
ressources pour foyers domestiques/bâtiments - Modèle de
données et échange de messages
This draft European Standard is submitted to CENELEC members for enquiry.
Deadline for CENELEC: 2020-10-30.
It has been drawn up by CLC/TC 205.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CENELEC 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

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Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
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1 Contents

2 European foreword .................................................................................................................................. 6

3 Introduction .............................................................................................................................................. 7

4 1 Scope ............................................................................................................................................... 8

5 2 Normative references ...................................................................................................................... 8

6 3 Terms, definitions and abbreviations ............................................................................................... 8

7 3.1 Terms and definitions ............................................................................................................ 8

8 3.2 Abbreviations ....................................................................................................................... 10

9 4 Energy management ..................................................................................................................... 11

10 4.1 Architectural overview .......................................................................................................... 11

11 4.2 Definition .............................................................................................................................. 11

12 4.3 Energy Management roles ................................................................................................... 12

13 4.3.1 General ........................................................................................................................ 12

14 4.3.2 Energy producer role ................................................................................................... 13

15 4.3.3 Energy consumer role ................................................................................................. 14

16 4.3.4 Energy storage role ..................................................................................................... 15

17 5 Resource Manager ........................................................................................................................ 15

18 6 Customer Energy Manager (CEM) ................................................................................................ 17

19 6.1 General ................................................................................................................................ 17

20 6.2 Local optimization ................................................................................................................ 17

21 6.3 Implicit control ...................................................................................................................... 17

22 6.4 Explicit control ...................................................................................................................... 18

23 6.5 Summary .............................................................................................................................. 18

24 7 Energy Management Concepts ..................................................................................................... 19

25 7.1 General ................................................................................................................................ 19

26 7.2 Design philosophy ............................................................................................................... 19

27 7.3 Abnormal condition .............................................................................................................. 19

28 7.4 Power measurements .......................................................................................................... 19

29 7.5 Power forecasts ................................................................................................................... 20

30 7.6 Control types ........................................................................................................................ 20

31 7.6.1 General ........................................................................................................................ 20

32 7.6.2 Power Envelope Based Control................................................................................... 20

33 7.6.3 Power profile-based control ......................................................................................... 22

34 7.6.4 Operation mode-based control .................................................................................... 23

35 7.6.5 Fill rate-based control .................................................................................................. 24

36 7.6.6 Demand driven-based control ..................................................................................... 27

37 8 Energy Management Data Models ................................................................................................ 29

38 8.1 Basic Data Types ................................................................................................................. 29

39 8.1.1 General ........................................................................................................................ 29

40 8.1.2 Common concepts related to Time ............................................................................. 29

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41 8.1.3 Common concepts related to Strings .......................................................................... 29

42 8.1.4 Meaning of optionality ................................................................................................. 30

43 8.2 Resource Manager .............................................................................................................. 30

44 8.2.1 ResourceManagerDetails ............................................................................................ 30

45 8.2.2 PowerValue ................................................................................................................. 31

46 8.2.3 ProbabilityPowerValue ................................................................................................ 31

47 8.2.4 PowerMeasurement .................................................................................................... 31

48 8.2.5 Role ............................................................................................................................. 31

49 8.2.6 ReceptionStatus .......................................................................................................... 32

50 8.2.7 Transition ..................................................................................................................... 32

51 8.2.8 Timer ........................................................................................................................... 32

52 8.3 Power Forecast ................................................................................................................... 33

53 8.3.1 Description .................................................................................................................. 33

54 8.3.2 PowerForecast ............................................................................................................ 33

55 8.3.3 PowerForecastElement ............................................................................................... 34

56 8.4 Control Types ...................................................................................................................... 34

57 8.4.1 Power Envelope Based Control .................................................................................. 34

58 8.4.2 Power Profile Based Control ....................................................................................... 36

59 8.4.3 Operation Mode Based Control ................................................................................... 39

60 8.4.4 Fill Rate Based Control ............................................................................................... 42

61 8.4.5 Demand Driven Based Control ................................................................................... 48

62 8.5 Enumerations ...................................................................................................................... 52

63 8.5.1 Role Types .................................................................................................................. 52

64 8.5.2 Commodity Types ....................................................................................................... 52

65 8.5.3 Commodity Quantity .................................................................................................... 53

66 8.5.4 Currency Definition ...................................................................................................... 53

67 8.5.5 InstructionStatus .......................................................................................................... 53

68 8.5.6 ControlType ................................................................................................................. 54

69 8.5.7 PowerEnvelopeLimitType............................................................................................ 55

70 8.5.8 PowerEnvelopeConsequenceType ............................................................................. 55

71 8.5.9 ReceptionStatusValues ............................................................................................... 55

72 9 Communication ............................................................................................................................. 56

73 9.1 Introduction .......................................................................................................................... 56

74 9.2 Generic Tasks ..................................................................................................................... 56

75 9.2.1 Update Resource Manager Details ............................................................................. 56

76 9.2.2 Activate Control Type .................................................................................................. 57

77 9.2.3 Update Active Control Type ........................................................................................ 58

78 9.2.4 Communicate Power Measurement ............................................................................ 58

79 9.2.5 Update Power Forecast ............................................................................................... 59

80 9.3 Power Envelope Based Control Tasks ................................................................................ 59

81 9.3.1 Update Power Envelope Constraints .......................................................................... 59

82 9.3.2 Revoke Power Envelope Constraints .......................................................................... 60

83 9.3.3 Process Power Envelope Instruction .......................................................................... 60

84 9.3.4 Revoke Power Envelope Instruction ........................................................................... 61

85 9.4 Power Profile Based Control Tasks ..................................................................................... 61

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86 9.4.1 Update Power Profile Definition................................................................................... 61

87 9.4.2 Revoke Power Profile Definition .................................................................................. 62

88 9.4.3 Process Schedule Instruction ...................................................................................... 63

89 9.4.4 Revoke Schedule Instruction ....................................................................................... 63

90 9.4.5 Process Start Interruption Instruction .......................................................................... 64

91 9.4.6 Revoke Start Interruption Instruction ........................................................................... 64

92 9.4.7 Process End Interruption Instruction ........................................................................... 65

93 9.4.8 Revoke End Interruption Instruction ............................................................................ 66

94 9.5 Operation Mode Based Control Tasks ................................................................................ 66

95 9.5.1 Update System Description ......................................................................................... 66

96 9.5.2 Revoke System Description ........................................................................................ 67

97 9.5.3 Process Transition Instruction ..................................................................................... 68

98 9.5.4 Revoke Transition Instruction ...................................................................................... 68

99 9.6 Fill Rate Based Control Tasks ............................................................................................. 69

100 9.6.1 Update System Description ......................................................................................... 69

101 9.6.2 Revoke System Description ........................................................................................ 69

102 9.6.3 Process Transition Instruction ..................................................................................... 70

103 9.6.4 Revoke Transition Instruction ...................................................................................... 71

104 9.7 Demand Driven Based Control Tasks ................................................................................. 71

105 9.7.1 Update System Description ......................................................................................... 71

106 9.7.2 Revoke System Description ........................................................................................ 72

107 9.7.3 Process Transition Instruction ..................................................................................... 72

108 9.7.4 Revoke Transition Instruction ...................................................................................... 73

109 Annex A (informative) Use Cases......................................................................................................... 74

110 A.1 Overview ........................................................................................................................................ 74

111 A.2 Organizing ..................................................................................................................................... 75

112 A.2.1 UC_EM_O100: Configuring CEM in network ...................................................................... 75

113 A.2.2 UC_EM_O101: Configuring master CEM with Smart Grid Operator Credentials ............... 75

114 A.3 Scheduling ..................................................................................................................................... 76

115 A.3.1 UC_EM_S200: CEM collects Energy Profiles, Tariff Profiles and Storage Details ............. 76

116 A.4 Management .................................................................................................................................. 76

117 A.4.1 UC_EM_M300: CEM selects alternative Energy Sequences by energy costs ................... 76

118 A.4.2 UC_EM_M301 CEM modifies start time of Energy Sequence ............................................ 77

119 A.4.3 UC_EM_M302: CEM changes an Energy Profile to make temporary use of stored energy

120 77

121 A.4.4 UC_EM_M303: Demanded power cannot be delivered by home grid ................................ 78

122 A.4.5 UC_EM_M304: Two electrical vehicles conflicting in their power load ............................... 78

123 A.4.6 UC_EM_M305: EMG requests temporarily energy saving .................................................. 79

124 A.4.7 UC_EM_M306: Energy Storage requests high priority ....................................................... 80

125 A.5 Case Studies ................................................................................................................................. 81

126 A.5.1 UC_EM_M307 Charging an EV in the context of JWG4 (“Power Limitation PV”) with the

127 dynamic control mode of ISO 15118-20 ........................................................................................ 81

128 A.5.2 UC_EM_M308: Charging an EV in the context of JWG4 (“Power Limitation PV”) with the

129 scheduled control mode of ISO 15118 series and monetary incentives ....................................... 82

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130

Bibliography ........................................................................................................................................... 84

131
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132 European foreword

133 This document (prEN 50491-12-2:2020) has been prepared by CLC/TC TC 205, “Home and Building Electronic

134 Systems (HBES)”.
135 This document is currently submitted to the Enquiry.
136 The following dates are proposed:
• latest date by which the existence of this (doa) dor + 6 months
document has to be announced at national
level
• latest date by which this document has to be (dop) dor + 12 months
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) dor + 36 months
conflicting with this document have to be (to be confirmed or
withdrawn modified when voting)

137 This document is part of the EN 50491 series of European Standards — General requirements for Home and

138 Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) — which will

139 comprise the following parts:
140 — Part 1: General requirements;
141 — Part 2: Environmental Conditions;
142 — Part 3: Electrical Safety Requirements;

143 — Part 4-1: General functional safety requirements for products intended to be integrated in Building

144 Electronic Systems (HBES) and Building Automation and Control Systems (BACS);

145 — Part 5-1: EMC requirements, conditions and test set-up;

146 — Part 5-2: EMC requirements for HBES/BACS used in residential, commercial and light industry

147 environment;
148 — Part 5-3: EMC requirements for HBES/BACS used in industry environment
149 — Part 6-1: HBES installations — Installation and planning;
150 — Part 6-3: HBES installations — Assessment and definition of levels;

151 — Part 11: Smart Metering — Application Specification — Simple External Consumer Display;

152 — Part 12: Smart grid — Application specification — Interface and framework for customer;

153 — Part 12-1: Interface between the CEM and Home/Building Resource manager– General Requirements and

154 Architecture;

155 — Part 12-2: Interface between the Home/Building CEM and Resource manager(s)– Data model and

156 messaging;
157 — Future Part 12-3: Home/Building Customer Energy Manager (CEM);
158 — Future Part 12-4: Resource manager.
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159 Introduction

160 Over recent decades, energy production and its consumption patterns have changed dramatically. Although

161 central energy production is still dominant, the trend for distributed production is distinctive following an

162 increasing number of renewables. Alternative energy sources are highly fluctuating in their production

163 capabilities, which may result in the grid operators having difficulty to keep a balance between energy production

164 and consumption. The complexity of keeping the grid reliable is further increased by the change in the electrical

165 energy consumption and production of the customer itself, e.g. the use of electrical vehicles and personal

166 generation facilities.

167 A Smart Grid that allows the grid operator to be flexible and reactive is needed. Such reactivity requires a

168 communication flow between energy consuming and producing entities, from single family houses to large

169 factories.

170 The EN 50491-12 series describes aspects of the smart grid that relate specifically to the premises

171 (home/building) part of the smart grid and describes the common interface between equipment in the premises

172 and the smart grid. This part 2 of the series defines the fundamental aspects of semantic interoperability for the

173 S2 interface and the related data exchange between a CEM and the Resource Managers within the premises.

174 Different use cases are explained in Annex A, which should help to understand the philosophy of

175 prEN 50491-12-2.
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176 1 Scope

177 This document specifies the fundamental aspects of semantic interoperability for the S2 interface and the related

178 data exchange between a CEM and the Resource Managers within the premises. It provides a technology

179 independent set of data models and interaction patterns in order to enable applications for Energy Management

180 within the premises. This document does not include:
181 — mappings to concrete data representations (XML, JSON and similar);
182 — mappings to application protocols for the message passing;
183 — security related aspects.
184 2 Normative references

185 The following documents are referred to in the text in such a way that some or all of their content constitutes

186 requirements of this document. For dated references, only the edition cited applies. For undated references, the

187 latest edition of the referenced document (including any amendments) applies.

188 ISO 15118-20, Road vehicles — Vehicle to grid communication interface
189 ISO 4217, Codes for the representation of currencies
190 3 Terms, definitions and abbreviations
191 3.1 Terms and definitions

192 For the purposes of this document, the following terms and definitions apply.

193 ISO and IEC maintain terminological databases for use in standardization at the following addresses:

194 — ISO Online browsing platform: available at https://www.iso.org/obp
195 — IEC Electropedia: available at http://www.electropedia.org/
196 3.1.1
197 power envelope based control
198 coordination of the CEM based on limitations to the device

199 Note 1 to entry: The CEM can set minimum and maximum values for the power that shall not be exceeded by the device.

200 3.1.2
201 power profile based control

202 control type where coordination from the CEM is based on profile modification, including concepts of sequence

203 shifting, sequence selection
204 3.1.3
205 operation mode based control

206 control type where the resource manager offers the CEM multiple operation modes that the CEM could choose

207 from

208 Note 1 to entry: The behaviour of the device will be modified by selecting operation modes.

209 3.1.4
210 fill rate based control

211 control type based on measurements indicating the fill level and the fill rate

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212
3.1.5
213 resource manager

214 logical component (typically implemented in software) that exclusively represents a group of devices or a single

215 smart device, and is responsible for sending unambiguous instructions to a group of devices or to a single

216 device, typically using a device-specific protocol

217 Note 1 to entry: In the context of this document, the resource manager manages the energy flexibility of a group of devices

218 or a single smart device.

219 Note 2 to entry: The resource manager may be implemented in a specific device, in the smart device itself or outside of

220 the device
221 3.1.6
222 role

223 categorization of the behavior of a participant by its capabilities related to energy management, each participant

224 at least supporting one
225 3.1.7
226 S1 communication
227 interface between CEM and energy management gateway
228 3.1.8
229 S2 communication
230 interface between CEM and resource manager
231 3.1.9
232 smart grid

233 electrical grid including a variety of operational and energy measures as well as control of the production and

234 distribution of electricity
235 3.1.10
236 smart grid operator

237 instance requesting energy profiles from the CEM in order to keep the grid stable and reliable

238 3.1.11
239 tariff based energy management

240 optimization strategy for energy management based on variable tariffs according to user’s requirements

241 3.1.12
242 time slot
243 fixed period of time with a specific duration
244 3.1.13
245 use case

246 describes interactions between an actor and another actor or a system to achieve a specific goal, either very

247 abstract or
...

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