IEC 62909-2:2019

Bi-directional grid-connected power converters - Part 2: Interface of GCPC and distributed energy resources

IEC 62909-2:2019 specifies GCPC interface requirements for particular distributed energy resources, namely electric vehicle (EV), battery, and photovoltaic (PV) systems. These requirements are in addition to the general requirements given in IEC 62909-1.
This International Standard is to be used in conjunction with IEC 62909-1:2017.
The clauses of particular requirements in this document supplement or modify the corresponding clauses in IEC 62909-1:2017. Where the text of subsequent clauses indicates an "addition" to or a "replacement" of the relevant requirement, test specification or explanation of IEC 62909-1:2017, these changes are made to the relevant text of IEC 62909­1:2017. Where no change is necessary and the clause is applicable, the words "The provisions of IEC 62909-1:2017, Clause XX shall apply" are used. Additional clauses, tables, figures and notes which are not included in IEC 62909-1:2017, are numbered starting from 101.

Convertisseurs de puissance connectés aux réseaux bidirectionnels - Partie 2: Interface du GCPC avec les ressources énergétiques réparties

l'IEC 62909-2:2019 définit les exigences d'interface du GCPC pour des ressources énergétiques réparties particulières, notamment les véhicules électriques (VE), les batteries et les systèmes photovoltaïques (PV). Ces exigences viennent compléter les exigences générales fournies dans l'IEC 62909-1.
La présente Norme internationale doit être utilisée conjointement avec l'IEC 62909-1:2017.
Les articles relatifs aux exigences particulières définies dans le présent document complètent ou modifient les articles correspondants de l'IEC 62909-1:2017. Lorsque le texte des articles suivants spécifie une "addition" ou un "remplacement" concernant une exigence, une spécification d'essai ou une explication fournie dans l'IEC 62909-1:2017, ces modifications se rapportent au texte correspondant de l'IEC 62909­1:2017. Lorsqu'aucune modification n'est nécessaire et que l'article est applicable, la phrase "Les dispositions de l'IEC 62909-1:2017, Article XX doivent s'appliquer" est employée. Les paragraphes, tableaux, figures et notes qui sont ajoutés à ceux de l'IEC 62909-1:2017 sont numérotés à partir de 101.

General Information

• Status: Published
• Publication Date: 07-Mar-2019
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.200 - Rectifiers. Convertors. Stabilized power supply
• Technical Committee: SC 22E - Stabilized power supplies
• Drafting Committee: PT 62909-2 - TC 22/SC 22E/PT 62909-2
• Current Stage: PPUB - Publication issued
• Start Date: 29-Mar-2019
• Completion Date: 08-Mar-2019

Standards Content (Sample)

IEC 62909-2 ®
Edition 1.0 2019-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Bi-directional grid-connected power converters –
Part 2: Interface of GCPC and distributed energy resources

Convertisseurs de puissance connectés aux réseaux bidirectionnels –
Partie 2: Interface du GCPC avec les ressources énergétiques réparties

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IEC 62909-2 ®
Edition 1.0 2019-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Bi-directional grid-connected power converters –

Part 2: Interface of GCPC and distributed energy resources

Convertisseurs de puissance connectés aux réseaux bidirectionnels –

Partie 2: Interface du GCPC avec les ressources énergétiques réparties

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.200 ISBN 978-2-8322-6613-7

– 2 – IEC 62909-2:2019  IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 GCPC general specifications . 11
4.1 General . 11
4.2 Description of GCPC and its components . 11
4.3 Operating modes . 11
4.4 Interfaces with distributed energy resources . 11
4.101 Specific requirements for earth fault detection on DC-port interfaces . 12
5 Performance requirements. 12
6 Hazard protection requirements . 12
7 Test requirements . 12
8 Information and marking requirements . 12
101 Interface requirements for EV section . 13
101.1 General system requirement and interface . 13
101.2 Protection against electric shock . 13
101.3 Connection between the power supply and the EV . 13
101.4 EV coupler requirements . 13
101.5 Charging cable assembly requirements . 13
101.6 Specific requirements for GCPC including EV section . 13
101.7 Communication . 13
101.8 Isolation . 14
101.8.1 General . 14
101.8.2 GCPC of system A . 14
101.8.3 GCPC of system B . 14
101.8.4 GCPC of system C. 14
101.9 Connection/disconnection . 15
101.10 Self-start up . 16
101.10.1 General . 16
101.10.2 EV section of system A . 16
101.11 Test requirements and procedures for connection . 19
101.12 EV section requirements . 19
102 Interface requirements for BS section . 19
102.1 General . 19
102.2 System configuration . 19
102.3 Voltage and current requirements . 20
102.3.1 General . 20
102.3.2 Location for the information for selection . 20
102.3.3 Voltage and current ranges . 20
102.4 Requirements of the control port . 21
102.5 Functional safety requirements of the control port . 21
102.6 Installation . 21
103 Interface requirements for PV section . 21
103.1 Protection against arc fault . 21

Bibliography . 23

Figure 101 – GCPC with multiple earth fault detection circuits . 12
Figure 102 – GCPC with EV section . 13
Figure 103 – GCPC with an isolated DC/DC converter in its EV section . 14
Figure 104 – GCPC with a non-isolated DC/DC converter in its EV section . 15
Figure 105 – Active EV section of GCPC with a switch at DC-connection interface side . 15
Figure 106 – Inactive EV section . 16
Figure 107 – Interface circuit for charging/discharging control of system A station . 18
Figure 108 – An example of GCPC containing a battery system with discrete DC/DC
converter . 19
Figure 109 – An example of GCPC containing a battery system with an integrated
dc/dc converter . 20
Figure 110 – External AFD . 22
Figure 111 – Integrated AFD . 22

Table 101 – Alphabetical list of terms . 8
Table 102 – Parameters and values for interface circuit in Figure 107. 17

– 4 – IEC 62909-2:2019  IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
BI-DIRECTIONAL GRID-CONNECTED POWER CONVERTERS –

Part 2: Interface of GCPC and distributed energy resources

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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