GB/T 34131-2023 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 34131-2023 | English | 635 |
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Battery management system for electrical energy storage
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| GB/T 34131-2017 | English | 135 |
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Technical standard for battery management system of electrochemical energy storage station
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GB/T 34131-2023: Battery management system for electrical energy storage---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/GBT34131-2023
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.180
CCS F 19
Replacing GB/T 34131-2017
Battery management system for electrical energy storage
Issued on. MARCH 17, 2023
Implemented on. OCTOBER 01, 2023
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 Classification and coding... 7
5 Normal working environment... 9
6 Technical requirements... 9
7 Test methods... 17
8 inspection rules... 37
9 Marks, packaging, transportation and storage... 40
Annex A (informative) Alarm information of battery management system... 42
Annex B (normative) Requirements for battery simulation device... 46
Annex C (informative) Parameter information of battery management system... 48
Annex D (informative) Battery charging and discharging curve... 60
1 Scope
This document specifies the requirements for data acquisition, communication, alarm
and protection, control, energy state estimation, balance, insulation resistance detection,
insulation withstand voltage, electrical adaptability, and electromagnetic compatibility
of the battery management system for electric energy storage (referred to as "battery
management system"). It describes corresponding test methods. It stipulates
classification and coding, normal working environment, inspection rules, marks,
packaging, transportation and storage, etc.
This document is applicable to the design, manufacture, test, inspection, operation,
maintenance and overhaul of battery management systems for lithium-ion batteries,
sodium-ion batteries, lead-acid (carbon) batteries, flow batteries, and water
electrolysis/fuel cells for power storage. Other types of battery management systems
shall refer to this document for implementation.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 191, Packaging and storage marks
GB/T 2423.1, Environmental testing for electric and electronic products - Part 2.
Test methods - Tests A. Cold
GB/T 2423.2, Environmental testing for electric and electronic products - Part 2.
Test methods - Tests B. Dry heat
GB/T 2423.4, Environmental testing for electric and electronic products - Part 2.
Test method - Test Db. Damp heat, cyclic (12 h + 12 h cycle)
GB/T 2423.17, Environmental testing for electric and electronic products - Part 2.
Test method - Test Ka. Salt mist
GB/T 4798.2, Classification of environmental conditions - Classification of groups
of environmental parameters and their severities - Part 2.Transportation and
handling
GB/T 7251.1, Low-voltage switchgear and control gear assemblies - Part 1.General
rules
3 Terms and definitions
For the purposes of this document, the terms and definitions defined in DL/T 2528 apply.
4 Classification and coding
The classification and coding rules of the battery management system are shown in Figure 1.
5 Normal working environment
The battery management system shall work normally in the following environments.
a) Temperature. -20°C~65°C;
b) Relative humidity. 5%~95%, without condensation;
c) Altitude. not greater than 2000 m. When it is greater than 2000 m, it shall meet
the relevant provisions of GB/T 7251.1;
d) For battery management systems used in marine climates, salt spray resistance
requirements shall be met.
6 Technical requirements
6.1 General requirements
6.1.1 The battery management system shall have the functions of data acquisition,
communication, alarm and protection, control, state estimation, parameter setting, data
storage, calculation and statistics, etc. It shall have a display function. Lithium-ion
batteries, sodium-ion batteries, and lead-acid (carbon) battery management systems
shall also have balance and insulation resistance detection functions.
6.1.2 The battery management system shall have versatility, compatibility,
maintainability and scalability. It shall be used when it is plugged.
6.1.3 The functions of the battery management system shall be logically independent
of each other. The control strategy and execution cycle match each other.
6.1.4 The battery management system shall be equipped with a grounding terminal.
Grounding resistance shall not be greater than 0.1 Ω. Screws and ground points for
connection to the ground wire shall not be used for any other mechanical fastening purposes.
6.1.5 The wiring harness of the battery management system shall use flame-retardant
materials. The electrical interface shall adopt a fool-proof design.
6.2 Data acquisition
6.2.1 Lithium-ion batteries, sodium-ion batteries and lead-acid (carbon) battery
management systems shall collect parameters such as battery cell voltage, battery cell
temperature, battery module positive and negative terminal temperatures, battery
cluster voltage, and battery cluster current.
6.2.2 The flow battery management system shall collect parameters such as stack
voltage, stack current, electrolyte temperature, electrolyte pressure, electrolyte flow rate,
electrolyte level state, pump current, pump frequency and valve state.
6.2.3 Water electrolysis hydrogen production/fuel cell management system shall collect
electrolyzer voltage, electrolyzer current, electrolyzer temperature, cooling water
temperature, cooling water pressure, hydrogen outlet pressure of hydrogen production
system, electrolyte circulation flow, oxygen concentration in hydrogen, hydrogen
concentration in oxygen, micro-oxygen content in hydrogen, hydrogen dew point, fuel
cell voltage, fuel cell current, fuel cell temperature, fuel cell inlet hydrogen pressure,
hydrogen storage system pressure, hydrogen flow in hydrogen supply pipeline, ambient
hydrogen concentration and other parameters.
6.2.4 See Table 1 for the battery acquisition parameter error and sampling period
requirements of the battery management system.
6.3 Communication
6.3.1 The battery management system shall have the function of information interaction
with the monitoring system, energy storage converter, and other management-level
battery management systems. It shall also have the function of information exchange
with equipment such as fire protection system, heating ventilation and air conditioning system.
6.3.4 Communication interfaces such as CAN, RS-485, and Ethernet can be used
between battery management systems at different management levels. Communication
protocols such as CAN2.0B and Modbus can be supported.
6.3.5 Communication interfaces such as RS-485 and Ethernet can be used for the
battery management system, fire protection system, heating ventilation and air
conditioning system. Support the Modbus communication protocol.
6.4 Alarm and protection
6.4.1 Alarm classification and processing
6.4.2 Alarm content
6.4.2.1 The alarm content of lithium-ion battery, sodium-ion battery and lead-acid
(carbon) battery management system shall include voltage over limit, voltage extreme
difference over limit, cluster current over limit, temperature over limit, battery cell
temperature extreme difference within the cluster over limit, insulation resistance over
limit, voltage acquisition line abnormality, temperature acquisition line abnormality,
6.4.2.2 The alarm content of the liquid flow battery management system shall include.
voltage over limit, voltage extreme difference over limit, current over limit, temperature
over limit, flow over limit, pressure over limit, liquid level over limit, liquid leakage
fault, communication exception etc.
6.4.2.3 The alarm content of the water electrolysis hydrogen production/fuel cell
management system shall include voltage over limit, current over limit, temperature
over limit, flow over limit, liquid level over limit, pressure over limit, oxygen
concentration over limit in hydrogen, hydrogen concentration over limit in oxygen,
ambient hydrogen concentration over limit, communication abnormality, etc.
6.4.3 Protection
6.5 Control
6.5.1 The lithium-ion battery, sodium-ion battery and lead-acid (carbon) battery
management system shall control the input and exit of battery clusters and battery arrays.
6.5.2 The battery management system shall have the ability to adjust the battery
temperature through the cooling or heating system.
6.5.3 The liquid flow battery management system shall control the pump speed of the
electrolyte circulation pump and the on-off of the valve.
6.6 Energy state estimation
6.6.1 The battery management system shall estimate the battery state of energy (SOE)
in real time.
6.6.2 The maximum allowable error of the energy state estimation of the battery
management system shall be ±5%.
6.7 Balance
Lithium-ion batteries, sodium-ion batteries and lead-acid (carbon) battery management
systems shall have a balancing function. One or both of the active and passive balance
methods can be used as the balance method.
6.8 Insulation resistance detection
6.8.1 Lithium-ion battery, sodium-ion battery and lead-acid (carbon) battery
management system shall have battery cluster insulation resistance detection function.
When the insulation detection function is activated by other external equipment, it shall
be automatically turned off.
6.8.2 See Table 2 for the insulation resistance detection error requirements for lithium-
ion batteries, sodium-ion batteries and lead-acid (carbon) battery management systems.
6.9 Parameter setting
6.9.1 The battery management system shall have the function of setting parameters such
as battery system configuration parameters, battery normal operation cut-off parameters,
alarm thresholds and protection thresholds in abnormal states.
6.9.2 The battery management system shall have the function of parameter setting
authority.
6.9.3 The battery management system shall have local parameter setting function and
remote parameter setting function.
6.10 Data storage
6.10.1 The battery management system shall store data information such as battery
operating state information, operating parameter information, alarm information, and
protection action information in real time.
6.10.2 The battery management system shall store data information of not less than 120
d locally. Queue storage shall be used.
6.11 Calculations and statistics
6.12 Display
The battery management system shall have the display function of basic information
such as battery operating state, battery operating parameters, and event records.
6.13 Insulation withstand voltage
6.14 Electrical adaptability
6.15 Electromagnetic compatibility
Under the action of electromagnetic interference, the battery management system shall
ensure the normal function, performance and correctness of action. The requirements
for relevant electromagnetic compatibility standards shall not be met by external anti-
interference components. The electromagnetic compatibility performance of the battery
management system shall meet the requirements in Table 5.
6.16 System availability
7 Test methods
7.1 Test environment
Unless otherwise specified, the normal test environment shall meet the following
requirements.
7.2 Test equipment
7.3 Test preparation
7.4 Data acquisition
7.5 Communication
The communication test is carried out according to the following steps.
7.6 Alarm and protection
The alarm and protection test is carried out according to the following steps.
7.7 Control
The control function test is carried out according to the following steps.
7.8 Energy state estimation
The energy state estimation test is carried out according to the following steps.
7.9 Balance
The balance test is carried out according to the following steps.
7.10 Insulation resistance detection
The insulation resistance detection test is carried out according to the following steps.
7.11 Insulation withstand voltage
7.12 Environmental adaptability
7.13 Electrical adaptability
7.14 Electromagnetic compatibility
7.14.1 Electrostatic discharge immunity
The test sample is tested in accordance with the method of GB/T 17626.2 under normal
working conditions.
7.14.2 Electrical fast transient burst immunity
The test sample is tested in accordance with the method of GB/T 17626.4 under normal
working conditions.
7.14.3 Surge (shock) immunity
The test sample is tested in accordance with the method of GB/T 17626.5 under normal
working conditions.
7.14.7 0 Hz ~ 150 kHz common mode conducted disturbance immunity
The test sample is tested in accordance with the method of GB/T 17626.16 under normal
working conditions.
7.14.8 Ripple immunity of DC power input port
The test sample is tested in accordance with the method of GB/T 17626.17 under normal
working conditions.
7.14.9 Damped oscillatory wave immunity
The test sample is tested in accordance with the method of GB/T 17626.18 under normal
working conditions.
8 inspection rules
8.1 Types of inspection
The inspection types of the battery management system are divided into type inspection,
exit-factory inspection and sampling inspection.
8.2 Type inspection
8.2.1 Type inspection requirements
8.2.2 Judgment rules
If the inspection items of all test samples meet the requirements, it will be judged as
qualified for the type inspection. If any one of the test items of any set of test samples
does not meet the requirements, it is judged to be unqualified for the type inspection.
8.3 Exit-factory inspection
8.3.1 Exit-factory inspection requirements
Each set of products shall be exit-factory inspected.
8.3.2 Judgment rules
If any of the inspection items of the inspected product does not meet the requirements,
it will be judged as unqualified for the exit-factory inspection.
8.4 Sampling inspection
8.4.1 Sampling inspection requirements
8.4.1.1 Sampling inspection shall be carried out in one of the following situations.
8.4.1.2 Sampling inspection shall meet the following requirements.
a) Sampling inspection is for the same model products. If there are multiple models,
each model shall be sampled and inspected separately.
8.4.2 Judgment rules
Judgment rules shall meet the following requirements.
8.5 Inspection items
Inspection items shall meet the requirements in Table 6.
9 Marks, packaging, transportation and storage
9.1 Marks
Product nameplates and labels shall comply with the following regulations.
9.2 Packaging
Product packaging shall meet the following requirements.
9.3 Transportation
Product transportation shall comply with the provisions of GB/T 4798.2.
9.4 Storage
The product storage shall meet the following requirements.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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