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IEC TS 62786-3:2023

(Main)

Distributed energy resources connection with the grid - Part 3: Additional requirements for stationary battery energy storage system

Distributed energy resources connection with the grid - Part 3: Additional requirements for stationary battery energy storage system

IEC TS 62786-3:2023, which is a Technical Specification, provides principles and technical requirements for interconnection of distributed Battery Energy Storage System (BESS) to the distribution network. It applies to the design, operation and testing of BESS interconnected to distribution networks. It includes the additional requirements for BESS, such as connection scheme, choice of switchgear, normal operating range, immunity to disturbance, active power response to frequency deviation, reactive power response to voltage variations and voltage changes, EMC and power quality, interface protection, connection and start to generate electric power, active power management, monitoring, control and communication, and grid-connected tests.
The stationary BESSs considered within the scope of this document include electrical forms such as lead-acid, lithium-ion, liquid flow and sodium-sulfur batteries, interconnected to medium voltage (MV) or low voltage (LV) distribution networks via bidirectional DC to AC power converters. This document will specify active and reactive power response and grid-connected testing for distributed BESS, as a supplement for IEC TS 62786-1:2023.
This document specifies interface requirements for connection of distributed BESS with the distribution network operating at a nominal frequency of 50 Hz or 60 Hz.

General Information

Status
Published
Publication Date
27-Nov-2023
ICS
29.240.01 - Power transmission and distribution networks in general
Technical Committee
TC 8 - System aspects of electrical energy supply
Drafting Committee
JWG 10 - TC 8/JWG 10
Current Stage
PPUB - Publication issued
Start Date
17-Nov-2023
Completion Date
28-Nov-2023
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IEC TS 62786-3:2023 - Distributed energy resources connection with the grid - Part 3: Additional requirements for stationary battery energy storage system Released:28. 11. 2023IEC TS 62786-3:2023 - Distributed energy resources connection with the grid - Part 3: Additional requirements for stationary battery energy storage system Released:28. 11. 2023
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Technical specification
IEC TS 62786-3:2023 - Distributed energy resources connection with the grid - Part 3: Additional requirements for stationary battery energy storage system Released:28. 11. 2023
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24 pages
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IEC TS 62786-3
®

Edition 1.0 2023-11
TECHNICAL
SPECIFICATION
colour
inside
Distributed energy resources connection with the grid –
Part 3: Additional requirements for stationary battery energy storage
system
IEC TS 62786-3:2023-11(en)

---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC TS 62786-3
®

Edition 1.0 2023-11
TECHNICAL
SPECIFICATION
colour
inside
Distributed energy resources connection with the grid –
Part 3: Additional requirements for stationary battery energy storage
system
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.01 ISBN 978-2-8322-7667-9
 Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission

---------------------- Page: 3 ----------------------
– 2 – IEC TS 62786-3:2023 © IEC 2023
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions, abbreviated terms and symbols . 6
3.1 Terms and definitions . 6
3.2 Abbreviated terms and symbols . 9
3.2.1 Abbreviated terms . 9
3.2.2 Symbols . 9
4 Requirements for distributed BESS . 11
4.1 General . 11
4.2 Connection scheme . 11
4.3 Choice of switchgear . 11
4.3.1 General . 11
4.3.2 Interface switch .
...

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