Importance and Specification Requirements of Sampling Inspection for Energy Storage Power Station
with the rapid development of renewable energy and the profound transformation of power system, energy storage power station plays an increasingly key role in maintaining the stability of power grid and balancing supply and demand. In order to ensure its continuous, stable and safe service in the power system, it is particularly important to carefully detect and analyze the potential safety hazards of energy storage power stations.
The Importance of Sampling Inspection of Energy Storage Power Station
energy storage power station is not only an indispensable peak shaving tool in power system, but also its safety and reliability are directly related to the overall operation stability of power system. In particular, the performance and safety of the battery pack, which is the heart of the power station, directly determines the overall performance of the energy storage power station. Therefore, the sampling inspection of battery in energy storage power station is particularly important. Through standardized sampling, we can not only ensure the safe operation of the power station, but also improve the performance and life of the battery, reduce operation and maintenance costs, and promote the healthy development of the energy storage power station industry.
Specification requirements for battery sampling inspection of energy storage power station
situations requiring random inspection
verify the consistency of key performance between actual engineering products and type-tested products.
Verify the consistency of key performance between batch products and type inspection products.
Verify the consistency between the replacement product and the key performance of the type inspection product.
Sampling requirements specified in the contract.
Sampling rules
the single-core sampling inspection shall be completed before the module sampling inspection to ensure the reliable quality of each link.
Different types of products should be sampled separately to ensure that the performance of each product meets the standards.
regular sampling items and sample size as the basis for inspection, arbitration and other special needs can be added on this basis.
When the total rated energy of the battery batch does not exceed 50MWh, take the whole batch as a sampling unit. ; If it exceeds 50MWh, the sampling inspection shall be carried out in batches in units of 50MWh, and the insufficient part shall be calculated as 50MWh..
the specific test items for single core and module in the sampling inspection of energy storage power station are shown in the following table:
all sampling items of all samples shall meet the requirements, and the sampling inspection shall be determined as qualified; if any test item of any sample does not meet the requirements, the sampling inspection shall be determined as unqualified.
to GB/T 36276-2018 for example, the power station sampling single core needs to carry out the appearance size quality, initial charge and discharge performance, rate charge and discharge performance, high and low temperature adaptability, overcharge and overdischarge performance, short circuit performance and thermal runaway performance test. Compared with the type test, the sampling inspection pays more attention to the inspection of the safety performance of the battery core under the condition of environmental adaptability, electric abuse and thermal abuse, and does not examine the safety performance of circulation, storage, and mechanical abuse.
In addition to the above test items, the battery module shall be sampled, pressure test added. In contrast to type tests, tests related to mechanical abuse are also not detected.
the sampling inspection of energy storage power station shall be carried out in accordance with the unified operation process, including the selection, identification and registration of sampling samples, calibration and acceptance of testing equipment, testing and recording, etc. In the detection process should pay attention to the operation specification, to ensure the accuracy and reliability of the test results.
In the sampling process of energy storage power station, the following problems should be paid attention:
1) Qualified testing equipment and tools shall be used for testing to ensure the accuracy and reliability of the testing results.
2) The inspection shall be carried out in strict accordance with the operation specifications to prevent personal injury or equipment damage caused by operational errors.
3) The test results shall be recorded and archived in time to facilitate follow-up tracking and analysis.
The above is the Anker's testing and certification pair. Analysis of Battery Sampling Inspection Specification and Key Inspection Items for Energy Storage Power Station introduction, for reference only, some of the material comes from the Internet, does not represent the point of view of Anker's detection technology and is responsible for its authenticity. If you are involved in the content of the work, copyright and other issues, please contact us within 30 days, we will delete the content in the first time!
