IEC SRD 62913-1:2022

Generic smart grid requirements - Part 1: Specific application of the use case methodology for defining generic smart grid requirements according to the IEC systems approach

IEC SRD 62913-1:2022 (E) describes a common approach for IEC technical committees to define generic smart grid requirements for further standardization work. It uses as input the use case methodology defined as part of the IEC 62559 series, and provides a more detailed methodology for describing use cases and extracting requirements from these use cases. This will achieve a consistent and homogeneous description of generic requirements for the different areas which make up the smart grid environment
This second edition cancels and replaces the first edition published in 2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
• it consolidates requirements identification and management and their associated naming rules;
• it leverages IEC SRD 63200:2021, Definition of extended SGAM Smart Energy Grid Reference Architecture Model;
• it highlights links between use case methodology and other tools and methodologies (i.e. TOGAF/ArchiMate as used in IEC 61968-1:2020).

General Information

• Status: Published
• Publication Date: 28-Aug-2022
• ICS: 29.020 - Electrical engineering in general
• ICS: 29.240 - Power transmission and distribution networks
• Technical Committee: SyC Smart Energy - Smart Energy
• Drafting Committee: WG 6 - SyC Smart Energy/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 01-Sep-2022
• Completion Date: 29-Aug-2022

Relations

• Revises: IEC SRD 62913-1:2019 - Generic smart grid requirements - Part 1: Specific application of the Use Case methodology for defining generic smart grid requirements according to the IEC systems approach
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC SRD 62913-1 ®
Edition 2.0 2022-08
SYSTEMS
REFERENCE DELIVERABLE
colour
inside
Generic smart grid requirements –
Part 1: Specific application of the use case methodology for defining generic
smart grid requirements according to the IEC systems approach
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IEC SRD 62913-1 ®
Edition 2.0 2022-08
SYSTEMS
REFERENCE DELIVERABLE
colour
inside
Generic smart grid requirements –

Part 1: Specific application of the use case methodology for defining generic

smart grid requirements according to the IEC systems approach

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.020; 29.240 ISBN 978-2-8322-4434-0

– 2 – IEC SRD 62913-1:2022 © IEC 2022
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms, definitions and abbreviated terms . 8
3.1 Terms and definitions . 8
3.2 Abbreviated terms . 12
4 Systems approach . 13
4.1 A systems perspective . 13
4.2 Applying the IEC systems approach to smart energy . 13
4.3 Main areas of work. 15
4.4 Breaking down the scope . 16
4.5 Link with some existing conceptual models . 16
5 Specific application of use case methodology for defining generic smart grid
requirements . 17
5.1 General . 17
5.2 Why the use case methodology is particularly adapted to smart grid . 17
5.2.1 General . 17
5.2.2 Linking the use case methodology with existing frameworks . 18
5.2.3 Notion of role . 21
5.3 Applying the use case methodology to define generic smart grid
requirements . 22
5.3.1 A customer-centric and business-processes-driven approach . 22
5.3.2 Generic smart grid requirements . 26
5.4 Approach used to elaborate a consolidated smart grid role model . 30
6 UML profile for modelling smart grid use cases . 31
6.1 A formal approach of use cases modelling . 31
6.1.1 General . 31
6.1.2 Key principles . 31
6.2 UML-driven top-down approach methodology . 32
6.2.1 Formalism and objectives . 32
6.2.2 Modelling language. 32
6.2.3 Scope and information type classification: diagrams and main elements . 33
6.2.4 Key benefits . 34
6.2.5 Types of diagrams and views . 36
6.3 IEC use cases UML profile concepts . 38
7 UML modelling diagrams . 40
Annex A (informative) Existing Actors Lists . 44
Annex B (informative) Content of the use case mapped on IEC 62559-2 template . 45
B.1 Description of the use case . 45
B.1.1 Name of use case . 45
B.1.2 Version management . 45
B.1.3 Scope and objectives of use case . 45
B.1.4 Narrative of use case . 45
B.1.5 Key performance indicators (KPI) . 46
B.1.6 Use case conditions. 46

B.1.7 Further information to the use case for classification / mapping . 46
B.1.8 General remarks . 46
B.2 Diagrams of use case . 46
B.3 Technical details . 47
B.3.1 Actors . 47
B.3.2 References . 47
B.4 Step by step analysis of use case . 47
B.4.1 Overview of scenarios . 47
B.4.2 Steps of scenarios . 48
B.5 Information exchanged . 48
B.6 Requirements (optional) . 48
B.7 Common terms and definitions . 48
B.8 Custom information (optional) . 49
B.9 IEC 62559-2 UML Modelling . 49
Annex C (informative) Example of telecommunications related non-functional
requirements . 51
Annex D (informative) Existing Smart Grid Conceptual Models . 52
Bibliography . 54

Figure 1 – The GridWise Architecture Council's model (NIST, 2012) . 18
Figure 2 – Simplification of the GWAC model (CEN-CENELEC-ETSI, 2014) . 19
Figure 3 – Smart grid plane domains and hierarchical zones . 19
Figure 4 – The Smart Grid Architecture Model (CEN-CENELEC-ETSI, 2014) . 20
Figure 5 – Interactions between the use case methodology and the Smart Grid
Architecture Model (based on CEN-CENELEC-ETSI, 2014) . 21
Figure 6 – Defining smart grid requirements methodology . 23
Figure 7 – Point of view of a domain role . 24
Figure 8 – The first two levels of detail used to capture generic smart grid
requirements . 25
Figure 9 – The three levels of detail used to capture generic smart grid requirements . 26
Figure 10 – Generic smart grid functional requirements and non-functional
requirements captured in use cases . 28
Figure 11 – Example of representation of a domain's role model . 30
Figure 12 – Example of representation of relations between roles . 31
Figure 13 – Four-layer model architecture . 33
Figure 14 – UML use case profile for the IEC SRD 62913 series aligned with the
IEC 62559 series . 36
Figure 15 – Use case overview diagram . 37
Figure 16 – Domain overview diagram . 37
Figure 17 – BUC-SUC relations diagram . 38
Figure 18 – Mapping between use case concepts and architecture concepts . 40
Figure 19 – Domain overview concepts UML model . 41
Figure 20 – Use case overview concepts UML model . 41
Figure 21 – Scenario overview concepts UML model . 42
Figure 22 – Activity overview concepts UML model . 43
Figure 23 – Requirement overview concepts UML model . 43

– 4 – IEC SRD 62913-1:2022 © IEC 2022
Figure C.1 – Use case mapping to IEC 62559-2 . 49
Figure C.2 – Use case mapping to IEC 62559-2 – Scenario and activities . 50
Figure D.1 – NIST/SGIP Smart Grid Conceptual Model . 52
Figure D.2 – M490 domains . 53

Table 1 – Differences between business use cases and system use cases . 12
Table 2 – Links between SGAM and IEC SRD 62913 series domains. 17
Table 3 – Use cases concepts . 39
Table C.1 – Example of telecommunications related non-functional requirem
...