GB/T 36547-2024 PDF English
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| GB/T 36547-2024 | English | 320 |
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Technical requirements for connecting electrochemical energy storage station to power grid
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| GB/T 36547-2018 | English | 225 |
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Technical rule for electrochemical energy storage system connected to power grid
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GB/T 36547-2024: Technical requirements for connecting electrochemical energy storage station to power grid
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT36547-2024
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.180
CCS F 19
Replacing GB/T 36547-2018
Technical Requirements for Connecting Electrochemical
Energy Storage Station to Power Grid
Issued on. MAY 28, 2024
Implemented on. DECEMBER 1, 2024
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... 8
5 Power Control... 9
6 Primary Frequency Control... 10
7 Inertia Response... 11
8 Fault Ride-through... 12
9 Operation Adaptability... 18
10 Power Quality... 19
11 Relay Protection and Automatic Safety Devices... 20
12 Dispatching Automation and Communication... 21
13 Simulation Models... 22
14 Test and Evaluation of Connection to the Power Grid... 22
Bibliography... 24
1 Scope
This document stipulates the overall requirements for connecting electrochemical energy
storage stations to the power grid, as well as the technical requirements for power control,
primary frequency control, inertia response, fault ride-through, operation adaptability, power
quality, relay protection and automatic safety devices, dispatching automation and
communication, simulation models, and test and evaluation of connection to the power grid.
This document is applicable to the construction, connection, commissioning, test, inspection,
operation, maintenance and overhaul of newly constructed, renovated and expanded
electrochemical energy storage stations connected to the public power grid through voltage
levels of 10 (6) kV and above.
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 14050 Types and Safety Technical Requirements of System Earthing
GB/T 14285 Technical Code for Relaying Protection and Security Automatic Equipment
GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply Network
GB/T 15543 Power Quality - Three-phase Voltage Unbalance
GB/T 19862 General Requirements for Monitoring Equipment of Power Quality
GB/T 22239 Information Security Technology - Baseline for Classified Protection of
Cybersecurity
3 Terms and Definitions
The terms and definitions defined in DL/T 2528, and the following are applicable to this
document.
3.1 primary frequency control; PFC
When the power system frequency deviates from the target frequency, the control function of
the electrochemical energy storage station to automatically regulate the active power in
response to frequency deviations of the power system.
3.2 delay time of PFC
From when the power system frequency exceeds the primary frequency control dead zone, the
time required for the actual output active power change of the electrochemical energy storage
station to reach 10% of the difference between the target value and the initial value of active
power.
3.3 rise time of PFC
From when the power system frequency exceeds the primary frequency control dead zone, the
time required for the actual output active power change of the electrochemical energy storage
station to reach 90% of the difference between the target value and the initial value of active
power.
3.4 settling time of PFC
From when the power system frequency exceeds the primary frequency control dead zone, the
shortest time that the absolute value of the difference between the actual output active power
and the target value of active power of the electrochemical energy storage station never exceeds
the allowable deviation.
4 Overall Requirements
4.1 The electrochemical energy storage station shall have the capability of participating in peak
regulation, frequency control and voltage regulation, etc. of the power system, and its safe and
stable operation shall comply with the provisions of GB 38755 and GB/T 31464.
4.4 The network security protection of the electrochemical energy storage station shall comply
with the provisions of GB/T 36572.
4.5 The grounding mode of the electrochemical energy storage station shall be compatible with
the grounding mode of the power grid, to which, it is connected. Lightning protection and
grounding shall comply with the technical regulations of GB 14050, GB 50057 and GB/T 50065.
4.6 The electrochemical energy storage station connected to the power grid shall establish
electromagnetic transient, electromechanical transient and medium and long-term dynamic
simulation models in accordance with the requirements of GB/T 42716.
4.7 The electrochemical energy storage station shall have a clarified electric energy
measurement point. The electric energy measurement point shall be located at the grid
connection point, equipped with a two-way electric energy measurement device, and have the
function of remote transmission of electric energy measurement information. The technical
requirements shall comply with the provisions of GB/T 50063 and DL/T 448.
4.8 The charge energy and discharge energy of the electrochemical energy storage station shall
not be lower than the rated charge energy and rated discharge energy.
5 Power Control
5.1 Active Power Control
5.1.1 The electrochemical energy storage station shall have the capability of controlling active
power and shall be able to accept local and remote active power control instructions to achieve
continuous regulation of active power.
5.2 Reactive Power Control
5.2.1 The electrochemical energy storage station shall have the capabilities of reactive power
regulation and voltage control and shall be able to accept local and remote control instructions
to achieve continuous regulation of reactive power / voltage.
5.2.2 The electrochemical energy storage station shall have the control modes for power factor,
reactive power and voltage control, and have the function of online switching control modes.
5.2.3 The power factor of the grid connection point of the electrochemical energy storage station
shall be continuously adjustable within the range of 0.9 (lead) ~ 0.9 (lag).
5.2.4 Within the adjustable range of reactive power of the electrochemical energy storage
station, the reactive power control deviation shall not exceed 3% of the rated power.
5.3 Overload Capability
The electrochemical energy storage station shall have the overload capability. Under the
nominal voltage, the operating time of 110% rated power shall not be less than 10 minutes, and
the operating time of 120% rated power shall not be less than 1 minute.
6 Primary Frequency Control
6.1 The electrochemical energy storage station shall have the function of primary frequency
control, which can be turned on or off through local or remote control in accordance with the
demands of the power system.
6.2 The electrochemical energy storage station shall upload the turn-on-off signals and action
status signals of primary frequency control to the power grid dispatching institution.
6.4 When the power system frequency drops and exceeds the frequency control dead zone, the
electrochemical energy storage station shall increase the active power for discharging or reduce
the active power for charging in accordance with the primary frequency control curve.
6.7 The error adjustment rate of primary frequency control of the electrochemical energy
storage station shall be 0.5% ~ 3%.
6.8 The delay time of PFC shall not be greater than 1 second, the rise time of PFC shall not be
greater than 3 seconds, and the settling time of PFC shall not be greater than 4 seconds. When
reaching stability, the active power control deviation shall not exceed 1% of the rated power.
7 Inertia Response
7.1 The electrochemical energy storage station shall have the function of inertia response, which
can be turned on or off through local or remote control in accordance with the demands of the
power system.
7.2 The electrochemical energy storage station shall upload the turn-on-off signals and action
status signals of inertia response to the power grid dispatching institution.
7.4 During inertia response, the active power change of the electrochemical energy storage
station shall satisfy the requirements of Formula (3).
8 Fault Ride-through
8.1 Low-voltage Ride-through
8.1.1 When the voltage at the grid connection point drops, the electrochemical energy storage
station shall have the capability of low-voltage ride-through. Within the shaded range shown in
Figure 1, it shall continuously operate without being disconnected from the power grid. See the
specific requirements below.
8.1.2 When a three-phase symmetrical fault occurs in the power system, causing the voltage at
the grid connection point of the electrochemical energy storage station to drop, the
electrochemical energy storage station shall have the capability of dynamic reactive support.
See the specific requirements below.
8.2 High-voltage Ride-through
8.2.1 When the voltage at the grid connection point rises, the electrochemical energy storage
station shall have the capability of high-voltage ride-through. Within the shaded range shown
in Figure 2, it shall continuously operate without being disconnected from the power grid. See
the specific requirements below.
8.2.2 When the voltage at the grid connection point of the electrochemical energy storage
station rises, the electrochemical energy storage station shall have the capability of dynamic
reactive support. See the specific requirements below.
8.3 Continuous Fault Ride-through
8.3.1 Continuous low-voltage ride-through
The electrochemical energy storage station shall have the capability of continuous low-voltage
ride-through. See the specific requirements below.
8.3.2 Continuous low-high voltage ride-through
The electrochemical energy storage station connected to the UHV DC transmission terminal
area shall have the capability of continuous low-high voltage ride-through. See the specific
requirements below.
9 Operation Adaptability
9.1 Voltage Adaptability
The voltage adaptability of the electrochemical energy storage station shall satisfy the
requirements of Table 1.
9.3 Frequency Adaptability
9.3.1 The frequency adaptability of the electrochemical energy storage station shall satisfy the
requirements of Table 2.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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