GB/T 34131-2023 English PDF (GBT34131-2023)

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GB/T 34131-2023: Battery management system for electrical energy storage
GB/T 34131-2023
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
Battery management system for electrical energy storage
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
Example 2:
For electric energy storage, the battery type is lithium-ion battery, the management level is battery
cluster, the maximum acquisition voltage is 1500 V, the balance method is passive balance, the
number of voltage acquisition channels is 1, the number of temperature acquisition channels is 0,
and the product model is A002, then the code shall be EES-LIB-C-1500V-PB-001-000-A002.
Example 3:
For electric energy storage, the battery type is a flow battery, the management level is a stack, the
maximum acquisition voltage is 900 V, the balance method is no balance, the number of voltage
acquisition channels is 1, the number of temperature acquisition channels is 1, the product model is
B002, then the code shall be EES-FLB-S-0900V-NB-001-001-B002.
Figure 1 -- Classification and coding of battery management systems
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.
communication interface, and support Modbus, DL/T 634.5104, DL/T 860 (all parts)
communication protocols. Dual-network redundant communication shall be adopted.
6.3.3 The battery management system and the energy storage converter can use
controller area network (CAN), RS-485, Ethernet and other communication interfaces,
support CAN2.0B, Modbus, DL/T860 (all parts) communication protocols, and have
one output hard contact interface.
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
6.4.1.1 The alarm information of the battery management system shall be divided into
level one, level two and level three according to the severity. In which:
- The level one alarm information is the alarm information that requires immediate
shutdown or power outage processing.
- The level two alarm information is the alarm information that needs to take
emergency measures immediately.
- The level three alarm information is the alarm information that needs to be
strengthened to monitor and the level one and level two alarms to reset.
6.4.1.2 The battery management system shall issue an alarm message and upload when
the equipment state is abnormal or faulty. See Annex A for alarm information.
6.4.1.3 When the level one and level two alarms occur, the battery management system
shall record the analog and state quantities for 10 s before and after the alarm
information.
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,
battery cluster charge and discharge circuit exception, communication exception, etc.
For lithium-ion ba...