Industrial-process measurement, control and automation - Part 2: Internet of Things (IoT) - Application framework for industrial facility demand response energy management

IEC 62872-2:2022 presents an IoT application framework for industrial facility demand response energy management (FDREM) for the smart grid, enabling efficient information exchange between industrial facilities using IoT related communication technologies. This document specifies:
- an overview of the price-based demand response program that serves as basic knowledge backbone of the IoT application framework;
- a IoT-based energy management framework which describes involved functional components, as well as their relationships;
- detailed information exchange flows that are indispensable between functional components;
- existing IoT protocols that need to be identified for each protocol layer to support this kind of information exchange;
- communication requirements that guarantee reliable data exchange services for the application framework.

Mesure, commande et automatisation dans les processus industriels - Partie 2: Internet des objets (IdO) - Cadre d'application pour la gestion d'énergie de la réponse à la demande des installations industrielles

L’IEC 62872-2:2022 expose un cadre d'application IdO pour la gestion d'énergie de la réponse à la demande des installations industrielles (FDREM) pour le réseau intelligent, permettant l'échange efficace d'informations entre les installations industrielles à l'aide de technologies de communication liées à l’IdO. Le présent document spécifie:
- une présentation du programme de la réponse à la demande fondée sur le prix, qui sert de chaîne cognitive fondamentale au cadre d'application IdO;
- un cadre de gestion de l'énergie fondé sur IdO qui décrit les composants fonctionnels concernés, ainsi que leurs relations;
- les flux d'échange d'informations détaillés indispensables entre les composants fonctionnels;
- les protocoles IdO existants qu'il est nécessaire d'identifier pour que chaque couche de protocole prenne en charge ce type d'échange d'informations;
- les exigences de communication qui garantissent la fiabilité des services d'échange de données pour le cadre d'application.

General Information

Status
Published
Publication Date
07-Feb-2022
Current Stage
PPUB - Publication issued
Completion Date
08-Feb-2022
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IEC 62872-2
Edition 1.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial-process measurement, control and automation –
Part 2: Internet of Things (IoT) – Application framework for industrial facility
demand response energy management
Mesure, commande et automatisation dans les processus industriels –

Partie 2: Internet des objets (IdO) – Cadre d'application pour la gestion d'énergie

de la réponse à la demande des installations industrielles
IEC 62872-2:2022-02(en-fr)
---------------------- Page: 1 ----------------------
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IEC 62872-2
Edition 1.0 2022-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial-process measurement, control and automation –
Part 2: Internet of Things (IoT) – Application framework for industrial facility
demand response energy management
Mesure, commande et automatisation dans les processus industriels –

Partie 2: Internet des objets (IdO) – Cadre d'application pour la gestion d'énergie

de la réponse à la demande des installations industrielles
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 27.015; 35.020 ISBN 978-2-8322-1073-1

Warning! Make sure that you obtained this publication from an authorized distributor.

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® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 62872-2:2022 © IEC 2022
CONTENTS

FOREWORD ........................................................................................................................... 5

INTRODUCTION ..................................................................................................................... 7

1 Scope .............................................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms and definitions ...................................................................................................... 9

3.1 General ................................................................................................................. 10

3.2 Models in automation ............................................................................................ 11

3.3 Models in energy management system and smart grid .......................................... 12

4 Abbreviated terms and acronyms ................................................................................... 16

5 Motivation ...................................................................................................................... 18

6 General approach for grid management of DR ............................................................... 19

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

6.2 Price-based demand response in industrial energy management .......................... 21

7 IoT application framework for industrial facility demand response energy

management.................................................................................................................. 21

7.1 Framework description .......................................................................................... 21

7.2 System elements descriptions ............................................................................... 23

7.2.1 General ......................................................................................................... 23

7.2.2 Utility power station ....................................................................................... 23

7.2.3 Energy management system (EMS) ............................................................... 23

7.2.4 Energy management agent (EMA) ................................................................. 24

7.2.5 Monitoring and control system (MCS) ............................................................ 24

7.2.6 ESS energy manager (ESS EM) .................................................................... 24

7.2.7 ESS load ....................................................................................................... 24

7.2.8 ESS generator ............................................................................................... 24

7.2.9 EGS energy manager (EGS EM) .................................................................... 24

7.2.10 EGS generator ............................................................................................... 24

7.2.11 Feed product ................................................................................................. 24

7.2.12 Intermediate product ...................................................................................... 24

7.2.13 Final product ................................................................................................. 24

7.3 Functional components description ....................................................................... 24

7.4 IoT application framework mapped to IoT reference architecture ........................... 25

7.5 The physical entity domain (PED) ......................................................................... 26

7.6 The sensing & controlling domain (SCD) ............................................................... 26

7.7 The resource access & interchange domain (RAID) .............................................. 27

7.8 The application & service domain (ASD) ............................................................... 27

7.9 The operation & management domain (OMD)........................................................ 27

7.10 The user domain (UD) ........................................................................................... 28

8 Use cases of functional components .............................................................................. 28

8.1 General ................................................................................................................. 28

8.2 Actor names and roles .......................................................................................... 28

8.3 Use case descriptions ........................................................................................... 29

8.3.1 Use case for functional component 1: Determine energy/demand price

information .................................................................................................... 29

8.3.2 Use case for functional component 2: Determine DR parameters .................. 30

8.3.3 Use case for functional component 3: Manage the operation point of

each time interval to minimize energy consumptions ...................................... 31

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IEC 62872-2:2022 © IEC 2022 – 3 –

8.3.4 Use case for functional component 4: Determine the utilization of ESS .......... 32

8.3.5 Use case for functional component 5: Determine the utilization of EGS ........ 33

8.3.6 Use case for functional component 6: Measure equipment power

consumption .................................................................................................. 34

8.3.7 Use case for functional component 7: Measure the whole energy

consumption in a facility ................................................................................ 35

9 IoT protocols ................................................................................................................. 36

9.1 General ................................................................................................................. 36

9.2 Communication stack layers ................................................................................. 36

9.2.1 General ......................................................................................................... 36

9.2.2 Physical layer ................................................................................................ 37

9.2.3 Data link layer ............................................................................................... 37

9.2.4 Network layer ................................................................................................ 37

9.2.5 Transport layer .............................................................................................. 38

9.2.6 Application layer ............................................................................................ 38

9.3 Information model ................................................................................................. 38

9.4 Services ................................................................................................................ 39

9.4.1 General ......................................................................................................... 39

9.4.2 Web service ................................................................................................... 39

9.4.3 Service discovery .......................................................................................... 40

10 Communication requirements of the application framework ............................................ 40

10.1 General ................................................................................................................. 40

10.2 Service-related requirement .................................................................................. 41

10.3 Quality of service (QoS) requirement .................................................................... 41

10.4 Bandwidth requirement ......................................................................................... 42

10.5 Security requirement ............................................................................................. 42

Annex A (informative) Facility smart grid information model (FSGIM) ................................... 43

A.1 General ................................................................................................................. 43

A.2 Applying the FSGIM in the application framework for industrial FDREM ................ 43

A.2.1 Conceptual Model of Smart Grid .................................................................... 43

A.2.2 Common industrial information model in an industrial facility ......................... 43

A.2.3 Applying the FSGIM and communication protocols ........................................ 46

Annex B (informative) State task network (STN) model for DR in industrial facilities ............ 48

B.1 General ................................................................................................................. 48

B.2 STN model for DR in industrial facilities ................................................................ 48

B.2.1 General ......................................................................................................... 48

B.2.2 Model architecture ......................................................................................... 48

Bibliography .......................................................................................................................... 52

Figure 1 – General approach common today for grid management of DR .............................. 19

Figure 2 – IoT application framework for FDREM .................................................................. 22

Figure 3 – Model elements defined for the IoT application framework [20] ............................ 23

Figure 4 – IoT application framework mapped to ISO/IEC 30141 – Internet of Things

Reference Architecture (IoT RA) ........................................................................................... 26

Figure 5 – Mapping between IoT application framework and IoT RA ..................................... 27

Figure 6 – Sequence diagram of use case for FC 1 ............................................................... 29

Figure 7 – Sequence diagram of use case for FC 2 ............................................................... 30

Figure 8 – Sequence diagram of use case for FC 3 ............................................................... 31

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– 4 – IEC 62872-2:2022 © IEC 2022

Figure 9 – Sequence diagram of use case for FC 4 ............................................................... 32

Figure 10 – Sequence diagram of use case for FC 5 ............................................................. 33

Figure 11 – Sequence diagram of use case for FC 6 ............................................................. 34

Figure 12 – Sequence diagram of use case for FC 7 ............................................................. 35

Figure A.1 – Smart grid information model standards and relationships between

standards [20] ....................................................................................................................... 43

Figure A.2 – The relationship between the information models and their instances in

DR energy management for industrial facilities [20] .............................................................. 44

Figure A.3 – Relationships of model elements in load model ................................................. 45

Figure A.4 – The relationship between FSGIM and communication protocols [20] ................. 47

Figure B.1 – Example of STN that consists of two types of nodes: task nodes, denoted

by rectangles, and state nodes, denoted by circles [24] ........................................................ 48

Figure B.2 – STN model for DR in an industrial facility [21] ................................................... 49

Figure B.3 – Task structure in Industrial DR Model architecture ............................................ 50

Table 1 – Actors and roles .................................................................................................... 28

Table 2 – Exchanged information in use case for FC 1.......................................................... 30

Table 3 – Exchanged information in use case for FC 2.......................................................... 31

Table 4 – Exchanged information in use case for FC 3.......................................................... 32

Table 5 – Exchanged information in use case for FC 4.......................................................... 33

Table 6 – Exchanged information in use case for FC 5.......................................................... 34

Table 7 – Exchanged information in use case for FC 6.......................................................... 35

Table 8 – Exchanged information in use case for FC 7.......................................................... 36

Table 9 – IoT protocols recommended to apply in domains of the application framework

and in use cases ................................................................................................................... 37

Table 10 – Data format recommended to implement the FSGIM in domains of the

application framework and in use cases ................................................................................ 39

Table 11 – Services recommended to implement the FSGIM in domains of the

application framework and in use cases ................................................................................ 40

Table 12 – Communication requirements considered in domains of the application

framework and in use cases.................................................................................................. 41

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IEC 62872-2:2022 © IEC 2022 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS MEASUREMENT, CONTROL AND AUTOMATION –
Part 2: Internet of Things (IoT) – Application framework for industrial
facility demand response energy management
FOREWORD

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IEC 62872-2 has been prepared by IEC technical committee 65: Industrial-process
measurement, control and automation. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
65/898/FDIS 65/911/RVD

Full information on the voting for its approval can be found in the report on voting indicated in

the above table.
The language used for the development of this International Standard is English.
---------------------- Page: 7 ----------------------
– 6 – IEC 62872-2:2022 © IEC 2022

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---------------------- Page: 8 ----------------------
IEC 62872-2:2022 © IEC 2022 – 7 –
INTRODUCTION

The World Energy Outlook 2017 [19] reported that industry consumed over 40 % of world

electricity generation in 2015. Furthermore, industry itself is a significant generator of internal

power, with many facilities increasingly implementing their own generation, co-generation and

energy storage resources. As a major energy consumer, the ability of some industries to

schedule their consumption can be used to minimize peak demands on the electrical grid. As

an energy supplier, industries with in-house generation or storage resources can also assist in

grid load management. For example, in-house generation can supply energy to the smart grid

and to the facility. Furthermore, storage resources can assist in smart grid load management.

While some larger industrial facilities already manage their use and supply of electric power,

more widespread deployment, especially by smaller facilities, will depend upon the availability

of a readily available standard interface between industrial automation equipment and the

"smart grid".

NOTE In this document "smart grid" is used to refer to the external-to-industry entity with which industry interacts

for the purpose of energy management. In other documents this term can be used to refer to all of the elements,

including internal industrial energy elements, which work together to optimize energy generation and use.

Standards are already being developed for home and building automation interfaces to the

smart grid; however, the requirements of industry differ significantly and are addressed in this

document. For industry, the planning of energy resources and production processes are under

the responsibility of the facility energy planner and production planner while operations are

under the responsibility of the facility energy operator and production operator.

Incorrect operation of a resource could impact the safety of personnel, the facility, the

environment or lead to production failure and equipment damage. In addition, larger facilities

may have in-house production planning capabilities which could be coordinated with smart grid

planning, to allow longer term energy planning.

IEC TS 62872-1:2019 defines the interface, in terms of information flow, between industrial

facilities and the "smart grid". It identifies, profiles and extends where required the standards

needed to allow the exchange of the information needed to support the planning, management

and control of electric energy flow between the industrial facility and the smart grid.

"Internet of Things" (IoT) is being applied into different domains to facilitate the application.

Building on the system interface between industrial facilities and the smart grid defined in

IEC TS 62872-1:2019, this document addresses IoT application for industrial facility demand

response energy management (FDREM). The smart grid is a modern electric power grid

infrastructure system, whereby advanced information and communication technologies (ICTs)

are integrated with the power grid. Industry is the largest consumer of electricity among all end

user sectors. This has led to significant interest in the development of industrial energy

management around the world in recent years. Interconnectivity and interoperability are very

important features in the development of integrated energy management systems for industrial

facilities. Therefore, IoT technologies are needed and suitable for exchanging energy-related

information in FDREM. By using the IoT for communication, it enables real-time data-acquisition

(In this document, it means acquisition of real time data, not data in real time.) and efficient

data-analysis, which can make industrial energy management more intelligent and cost-saving.

Currently, there may exist different implementation of IoT-based FDREM. Thus, a standard

specification is urgently needed to guide different kinds of IoT application to data-exchange in

industrial energy management.
___________
Numbers in square brackets refer to the Bibliography.
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