GB/T 36548-2024 English PDF (GB/T36548-2024)

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GB/T 36548-2024: Test code for electrochemical energy storage station connected to power grid
GB/T 36548-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.180
CCS F 19
Replacing GB/T 36548-2018
Test Code for Electrochemical Energy Storage Station
Connected to Power Grid
ISSUED ON: JUNE 29, 2024
IMPLEMENTED ON: JANUARY 1, 2025
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative References ... 6
3 Terms and Definitions ... 7
4 Overall Requirements ... 7
5 Test Conditions ... 8
6 Test Instruments and Equipment ... 8
7 Power Control ... 10
8 Charge and Discharge Time ... 15
9 Rated Energy ... 16
10 Rated Energy Efficiency ... 19
11 Power Quality ... 21
12 Primary Frequency Modulation ... 22
13 Inertia Response ... 23
14 Operation Adaptability ... 24
15 Fault Ride-through ... 29
16 Overload Capability ... 37
17 Automatic Generation Control (AGC) ... 38
18 Automatic Voltage Control (AVC) ... 39
19 Emergency Power Support ... 40
Appendix A (normative) Technical Information Collected before Energy Storage
Station is Connected to the Power Grid for Testing ... 41
Appendix B (informative) Wiring of Energy Storage Station and Energy Storage
System Connected to the Power Grid for Testing ... 42
Appendix C (informative) Test Report Format ... 44
Appendix D (normative) Calculation Method for Active Power Control Response Time,
Regulation Time and Control Deviation Parameters ... 45
Test Code for Electrochemical Energy Storage Station
Connected to Power Grid
1 Scope
This document describes the test methods for power control, charge and discharge time, rated
energy, rated energy efficiency, power quality, primary frequency modulation, inertia response,
operation adaptability, fault ride-through, overload capability, automatic generation control
(AGC), automatic voltage control (AVC) and emergency power support, etc. of electrochemical
energy storage station (hereinafter referred to as “energy storage station”) connected to power
grid, as well as the requirements for the test conditions, and test instruments and equipment,
etc.
This document is applicable to the commissioning, grid connection detection, operation and
maintenance of newly constructed, renovated and expanded electrochemical energy storage
stations connected to the power grid through voltage levels of 10 (6) kV and above. The energy
storage stations connected to the power grid through other voltage levels may take this as a
reference in implementation.
2 Normative References
The contents of the following documents constitute indispensable clauses of this document
through the normative references in the text. In terms of references with a specified date, only
versions with a specified date are applicable to this document. In terms of references without a
specified date, the latest version (including all the modifications) is applicable to this document.
GB/T 12325 Power Quality - Deviation of Supply Voltage
GB/T 12326 Power Quality - Voltage Fluctuation and Flicker
GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply Network
GB/T 15543 Power Quality - Three-phase Voltage Unbalance
GB/T 15945 Power Quality - Frequency Deviation for Power System
GB/T 20840 (all parts) Instrument Transformers
GB/T 24337 Power Quality - Interharmonics in Public Supply Network
GB/T 36547 Technical Rule for Electrochemical Energy Storage System Connected to Power
Grid
GB/T 42288 Safety Code of Electrochemical Energy Storage Station
GB/T 43526 Technical Requirements for Connecting User-side Electrochemical Energy
Storage System to Distribution Network
DL/T 2528 Basic Terminology of Electrical Energy Storage
3 Terms and Definitions
The terms and definitions defined in GB/T 36547 and DL/T 2528 are applicable to this
document.
4 Overall Requirements
4.1 The test results of the energy storage station connected to the power grid shall be determined
in accordance with the requirements of GB/T 36547 and GB/T 43526.
4.2 Before the energy storage station is connected to the power grid for testing, the technical
information of the energy storage station shall be collected; a test scheme shall be prepared and
submitted to the power grid dispatching institution for approval within 30 days before the test,
then, it can be implemented. The technical information collected before the energy storage
station is connected to the power grid for testing shall comply with the provisions of Appendix
A.
4.3 Before the energy storage station is connected to the power grid for testing, an emergency
plan shall be prepared, and safety measures shall be formulated. The safety of the test work
shall comply with the provisions of GB/T 42288, and temporary fire-fighting facilities and
emergency supplies shall be equipped.
4.4 The testing personnel of the energy storage station shall have necessary electrical
knowledge and professional skills, be familiar with the working principles and structures, test
schemes and safe work procedures of energy storage equipment and electrical equipment, and
be able to correctly use tools, instruments and safety protection equipment.
4.5 The instruments and equipment used for the test of energy storage station connected to the
power grid shall be verified or calibrated and be within the validity period. The shell of the test
instruments and equipment shall be reliably grounded, and the power supply should be an
uninterruptible power supply.
4.6 The energy storage station shall complete the grid connection test within 3 months of grid-
connected operation.
4.7 Before testing the energy storage station, the specification parameters, electrical wiring,
working parameters and protection settings, etc. of the energy storage station shall be verified.
4.8 Unless otherwise specified, the energy storage station shall be pre-charged or pre-
discharged before testing, and the energy state should be 30% ~ 80% of the rated discharging
energy.
4.9 The energy storage station shall select the energy storage station or energy storage system
as the test object in accordance with the grid conditions of the access point and the requirements
of the power grid dispatching institution. For test projects carried out with an energy storage
system as the test object, the test results shall be evaluated in combination with energy storage
station model simulations. See Appendix B for the wiring of energy storage station and energy
storage system connected to the grid for testing.
4.10 The test point for the energy storage station connected to the power grid shall select a grid
connection point.
4.11 If an abnormality occurs during the test of the energy storage station connected to the
power grid, the test shall be immediately stopped, and the abnormal information shall be
recorded. After the processing is completed, the test shall be re-performed.
4.12 When renovation (expansion) or equipment modification, software upgrade, network-
related parameter modification and control logic change of the energy storage station may affect
the performance of grid connection of the energy storage station, such as: fault ride-through,
power control, rated energy, operation adaptability and power quality, etc., the affected items
shall be re-tested within 3 months of completion of the replacement or update.
4.13 During the test process of the energy storage station connected to the power grid, the te...