CN109174699B - Screening system and method for retired power battery pack for communication base station - Google Patents
Screening system and method for retired power battery pack for communication base station Download PDFInfo
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- CN109174699B CN109174699B CN201810906779.1A CN201810906779A CN109174699B CN 109174699 B CN109174699 B CN 109174699B CN 201810906779 A CN201810906779 A CN 201810906779A CN 109174699 B CN109174699 B CN 109174699B
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- power battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
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- Tests Of Electric Status Of Batteries (AREA)
Abstract
The invention relates to a system and a method for screening a retired power battery pack for a communication base station, and aims to establish a method for screening a retired power battery for the communication base station. The screening system includes: the system comprises a charge and discharge tester, an alarm and digital display device, a data acquisition unit and an upper computer; the screening method implemented on the screening system comprises the following steps: connecting the retired power battery pack with a charge and discharge tester; setting a test working condition of a charge and discharge tester; carrying out charge and discharge tests on the screened retired power battery to be tested; the alarm and digital display device displays the charging and discharging real-time data and results of the screened retired power battery to be tested; judging whether the screened retired power retired battery pack to be tested can be charged and discharged normally or not; recording parameters of the retired power battery meeting normal charge and discharge; and (4) screening by the upper computer. The invention ensures the reliability and the utilization rate of the battery energy storage system for the communication base station.
Description
The technical field is as follows:
the invention relates to the technical field of communication base stations, in particular to a system and a method for screening retired power battery packs for communication base stations.
Background art:
with the rapid development of pure electric new energy vehicles, electric vehicle retired batteries with 29GWh are expected to be put on the market by 2025, wherein about 10GWh with the value of usable value for re-entering the energy storage system operation line is provided. With the development of technology and the continuous expansion of the use scale, the opportunity of retired power batteries to enter the market of fixed energy storage systems is gradually increased.
In terms of the current running situation of new energy automobiles in China, the depth of discharge (DOD) of power batteries of electric automobiles can still be kept at 70% -80% after being retired, the batteries can still meet the requirements of daily energy storage, use in the field of distributed energy storage and power generation, use of energy storage equipment such as a power station, a backup emergency power supply and the like, and the retired batteries are used in a communication base station to guarantee uninterrupted power supply of communication equipment along with the rapid development of a retired lithium ion battery echelon utilization technology; therefore, the retired power battery is used in the communication base station, and the screening and the recombination of the available battery are needed.
The invention content is as follows:
the invention aims to establish a screening method of retired power batteries for a communication base station, which screens retired power batteries with different consistencies, different performances and different qualities and ensures the reliability and the utilization rate of a battery energy storage system for the communication base station. The specific technical scheme is as follows:
a communication base station is with retired power battery group screening system includes: the system comprises a charge and discharge tester, an alarm and digital display device, a data acquisition unit and an upper computer; the charge and discharge tester is connected with the retired power battery pack and provides a charge and discharge/test environment according to a set working environment; the charging and discharging tester can provide working environments of constant-current charging, constant-voltage charging, multiplying power charging, constant-current discharging, constant-power discharging, constant-resistance discharging, multiplying power discharging and standing for the retired power battery pack during testing; the data acquisition unit is connected with the charge-discharge tester, and stores the data of the retired power battery pack in the testing period into the upper computer in an RS232 communication mode.
The method for screening the retired power battery pack for the communication base station, which is realized on the screening system, comprises the following steps:
step 1: connecting the retired power battery pack with a charge and discharge tester;
step 2: setting a test working condition of a charge and discharge tester;
and step 3: carrying out charge and discharge tests on the screened retired power battery to be tested;
and 4, step 4: the alarm and digital display device displays the charging and discharging real-time data and results of the screened retired power battery to be tested;
and 5: judging whether the screened retired power retired battery pack to be tested can be charged and discharged normally or not;
step 6: recording the internal resistance (R) of the retired power battery meeting the normal charge and discharge1) Capacity (C)1) Open circuit voltage (V)1) Discharge plateau time (T)1) Self-discharge rate (G)1) And depth of charge and discharge (D)1) A parameter;
and 7: and (4) screening by the upper computer.
Preferably, the batteries of the retired power battery pack are single soft package batteries, the battery capacity is 20Ah, the rated voltage is 3.65V, and the charging and discharging voltage range is 2.80V-4.20V.
In a further preferable scheme, the retired power battery pack is composed of single soft package batteries 16S4P (16 strings and 4 parallel).
In a further preferable scheme, the capacity of the retired power battery pack is 158Ah, the rated voltage is 350V, and the working voltage of the retired power battery pack is 268.8V-403.2V.
The invention establishes a screening method of retired power batteries for a communication base station, screens retired power batteries with different consistencies, different performances and different qualities, and ensures the reliability and the utilization rate of a battery energy storage system for the communication base station.
Description of the drawings:
FIG. 1 is a schematic diagram of a retired power battery pack grouping.
Fig. 2 is a schematic flow chart of a method for screening retired power batteries for a communication base station.
The specific implementation mode is as follows:
example (b):
the technical scheme in the patent of the invention is clearly and completely described by combining the attached drawings of the invention.
The invention discloses a research of a screening method of retired batteries for a communication base station, and fig. 1 is a grouping schematic diagram of a retired power battery pack, wherein the capacity of a single soft package battery is 20Ah, the rated voltage is 3.65V, and the charging and discharging voltage range is 2.80V-4.20V; the single soft package battery forms a battery pack through 16S4P (16 series-4 parallel), the battery pack capacity is 158Ah, the rated voltage is 350V, and the working voltage of the retired power battery pack is 268.8V-403.2V.
Above-mentioned communication base station is with retirement power battery group screening system includes: the system comprises a charge and discharge tester, an alarm and digital display device, a data acquisition unit and an upper computer; the charge and discharge tester is connected with the retired power battery pack and provides a charge and discharge/test environment according to a set working environment; the charging and discharging tester can provide working environments of constant-current charging, constant-voltage charging, multiplying power charging, constant-current discharging, constant-power discharging, constant-resistance discharging, multiplying power discharging and standing for the retired power battery pack during testing; the data acquisition unit is connected with the charge-discharge tester, and stores the data of the retired power battery pack in the testing period into the upper computer in an RS232 communication mode.
The method for screening the retired power battery pack for the communication base station, which is realized on the screening system, comprises the following steps:
step 1: connecting the retired power battery pack with a charge and discharge tester;
step 2: setting a test working condition of a charge and discharge tester;
and step 3: carrying out charge and discharge tests on the screened retired power battery to be tested;
and 4, step 4: the alarm and digital display device displays the charging and discharging real-time data and results of the screened retired power battery to be tested;
and 5: judging whether the screened retired power retired battery pack to be tested can be charged and discharged normally or not;
step 6: recording the internal resistance (R) of the retired power battery meeting the normal charge and discharge1) Capacity (C)1) Open circuit voltage (V)1) Discharge plateau time (T)1) Self-discharge rate (G)1) And depth of charge and discharge (D)1) A parameter;
and 7: screening by the upper computer; the specific process is as follows:
step 7.1: setting up the basic parameter internal resistance (R) of the retired power retired battery pack for communication base station1) Capacity (C)1) Open circuit voltage (V)1) Discharge plateau time (T)1) Self-discharge rate (G)1) And depth of charge and discharge (D)1) Is constructed as a sample phasor matrix [ D ] of the retired power battery packi]；
Step 7.2: extracting test data of j groups of retired power battery packs in the database, and constructing a test data matrix [ D ] of the retired power battery packsij]；
Step 7.3: will [ D ]i]Are each independently of [ Dij]F detection is carried out on the data of each line to respectively obtain the precision [ RSD ] between each tested retired power battery pack and the sample retired power battery packj]；
Step 7.4: marking the k groups of retired battery packs with no obvious difference in precision, and reconstructing the test data of each retired battery pack into a data matrix [ D ]ik]；
Step 7.5: will [ D ]i]Are each independently of [ Dik]Carrying out t detection on the data of each row, and marking the retired battery pack without significant difference;
step 7.6: and the retired power battery packs meeting the conditions are correspondingly connected in series and in parallel to form a battery energy storage system for the communication base station.
Claims (1)
1. A method for screening a retired power battery pack for a communication base station relates to a system comprising: the system comprises a charge and discharge tester, an alarm and digital display device, a data acquisition unit and an upper computer; the charge and discharge tester is connected with the retired power battery pack and provides a charge and discharge/test environment according to a set working environment; the charging and discharging tester can provide working environments of constant-current charging, constant-voltage charging, multiplying power charging, constant-current discharging, constant-power discharging, constant-resistance discharging, multiplying power discharging and standing for the retired power battery pack during testing; the data collector is connected with the charge-discharge tester, and stores the data of the retired power battery pack in the testing period into the upper computer in an RS232 communication mode; the screening method is characterized by comprising the following steps:
step 1: connecting the retired power battery pack with a charge and discharge tester;
step 2: setting a test working condition of a charge and discharge tester;
and step 3: carrying out charge and discharge tests on the screened retired power battery to be tested;
and 4, step 4: the alarm and digital display device displays the charging and discharging real-time data and results of the screened retired power battery to be tested;
and 5: judging whether the screened retired power retired battery pack to be tested can be charged and discharged normally or not;
step 6: recording the internal resistance (R) of the retired power battery meeting the normal charge and discharge1) Capacity (C)1) Open circuit voltage (V)1) Discharge plateau time (T)1) Self-discharge rate (G)1) And depth of charge and discharge (D)1) A parameter;
and 7: screening by the upper computer; the specific process is as follows:
step 7.1: setting up the basic parameter internal resistance (R) of the retired power retired battery pack for communication base station1) Capacity (C)1) Open circuit voltage (V)1) Discharge plateau time (T)1)、Self discharge rate (G)1) And depth of charge and discharge (D)1) Is constructed as a sample phasor matrix [ D ] of the retired power battery packi]；
Step 7.2: extracting test data of j groups of retired power battery packs in the database, and constructing a test data matrix [ D ] of the retired power battery packsij]；
Step 7.3: will [ D ]i]Are each independently of [ Dij]F detection is carried out on the data of each line to respectively obtain the precision [ RSD ] between each tested retired power battery pack and the sample retired power battery packj]；
Step 7.4: marking the k groups of retired battery packs with no obvious difference in precision, and reconstructing the test data of each retired battery pack into a data matrix [ D ]ik]；
Step 7.5: will [ D ]i]Are each independently of [ Dik]Carrying out t detection on the data of each row, and marking the retired battery pack without significant difference;
step 7.6: and the retired power battery packs meeting the conditions are correspondingly connected in series and in parallel to form a battery energy storage system for the communication base station.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810906779.1A CN109174699B (en) | 2018-08-10 | 2018-08-10 | Screening system and method for retired power battery pack for communication base station |
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| CN201810906779.1A CN109174699B (en) | 2018-08-10 | 2018-08-10 | Screening system and method for retired power battery pack for communication base station |
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| CN109174699A CN109174699A (en) | 2019-01-11 |
| CN109174699B true CN109174699B (en) | 2020-07-21 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| AU5619699A (en) * | 1998-08-06 | 2000-02-28 | Tredi | Automatic sorting of battery power packs |
| CN100559205C (en) * | 2006-09-07 | 2009-11-11 | 长安大学 | Concentration/distribution formula accumulator of electric car group system for inspecting operation parameter |
| CN203350421U (en) * | 2013-07-25 | 2013-12-18 | 上海卡耐新能源有限公司 | System for dynamically evaluating battery uniformity |
| CN203981853U (en) * | 2013-11-15 | 2014-12-03 | 广州优维电子科技有限公司 | A kind of accumulator on-line monitoring system |
| CN105983542B (en) * | 2015-02-13 | 2018-11-09 | 国家电网公司 | A kind of retired electric automobile power battery sorting technique |
| CN207303273U (en) * | 2017-09-11 | 2018-05-01 | 广东南方电信规划咨询设计院有限公司 | A kind of lithium battery management system of communication base station |
| CN108199109B (en) * | 2018-01-16 | 2020-10-02 | 上海应用技术大学 | Screening method for gradient utilization of retired power battery pack |
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