CN113917349A - Method and system for rapidly testing internal resistance of storage battery - Google Patents
Method and system for rapidly testing internal resistance of storage battery Download PDFInfo
- Publication number
- CN113917349A CN113917349A CN202111248289.5A CN202111248289A CN113917349A CN 113917349 A CN113917349 A CN 113917349A CN 202111248289 A CN202111248289 A CN 202111248289A CN 113917349 A CN113917349 A CN 113917349A
- Authority
- CN
- China
- Prior art keywords
- storage battery
- tested
- internal resistance
- unit
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/389—Measuring internal impedance, internal conductance or related variables
Abstract
The invention provides a method and a system for quickly testing the internal resistance of a storage battery, which divide the storage battery to be tested into a plurality of groups of storage battery packs to be tested, utilize the system for quickly testing the internal resistance of the storage battery to test the internal resistance of each group of storage battery packs to be tested, compare the test result with the standard internal resistance value of the storage battery, and find out the storage battery pack to be tested with defective batteries; and respectively dividing the storage battery packs to be tested with the defective batteries into two secondary storage battery packs to be tested, carrying out internal resistance test on each secondary storage battery pack to be tested, finding out the secondary storage battery packs to be tested with the defective batteries, and repeating the operation until all the defective batteries in the storage battery to be tested are found out. The storage batteries to be tested are tested in groups, and the groups of the problem batteries are gradually reduced by a regrouping method until all the problem batteries are screened out, so that the aims of quickly testing the internal resistance of the storage batteries and quickly finding out the problem batteries are fulfilled.
Description
Technical Field
The invention relates to the technical field of storage battery internal resistance testing, in particular to a storage battery internal resistance rapid testing method and a storage battery internal resistance rapid testing system.
Background
The storage battery is a device for directly converting chemical energy into electric energy, and the principle of the storage battery is that when the storage battery is charged, external electric energy is utilized to regenerate internal active substances, the electric energy is stored into the chemical energy, and when the storage battery needs to be discharged, the chemical energy is converted into the electric energy again to be output. When the storage battery is produced or recycled, the internal resistance of the storage battery needs to be tested so as to know whether the produced storage battery is qualified or not or the internal resistance condition of the recycled storage battery, and further the storage battery is processed in a targeted manner. In the prior art, the internal resistance test of the storage battery is mainly carried out in a manual mode, and because the number of the storage batteries is large, the manual factor in manual detection easily causes inaccurate test; meanwhile, the workload is large, the working efficiency is low, the labor cost is high, the storage battery with high discharge in the test process easily causes electric shock to personnel, and great potential safety hazards exist for the test personnel.
Disclosure of Invention
In order to overcome the defects in the background art, the invention provides a method and a system for rapidly testing the internal resistance of a storage battery.
In order to solve the technical problems, the invention adopts the following technical scheme: a method for rapidly testing internal resistance of a storage battery comprises the following steps: s1: dividing the storage battery to be tested into a plurality of groups of storage battery packs to be tested, carrying out internal resistance test on each group of storage battery packs to be tested by using a storage battery internal resistance rapid test system, and comparing the test result with the standard internal resistance value of the storage battery to find out the storage battery pack to be tested with defective batteries; s2: dividing the storage battery packs to be tested with the defective batteries into two slave-level storage battery packs to be tested, carrying out internal resistance test on each slave-level storage battery pack to be tested by using a storage battery internal resistance rapid test system, and comparing the test result with the standard internal resistance value of the storage battery to find out the slave-level storage battery packs to be tested with the defective batteries; s3: and step S2 is repeated until all bad batteries in the battery to be tested are found out.
A rapid test system for internal resistance of a storage battery comprises a main control unit, wherein the main control unit is respectively connected with a human-computer interaction interface, a power supply unit, an indicator light unit and a collection processing unit, the collection processing unit is respectively connected with a data collection unit and a discharge control unit, the data collection unit is connected with a storage battery pack to be tested, and the discharge control unit is connected with a discharge unit; the main control unit is also connected with a data output interface.
The data acquisition unit comprises a current acquisition module and a voltage acquisition module, the current acquisition module and the voltage acquisition module are both connected with the acquisition processing unit, and the current acquisition module and the voltage acquisition module are both connected with the storage battery to be tested.
The discharging control unit comprises a relay module, and the relay module is respectively connected with the acquisition processing unit and the discharging unit.
The discharging unit comprises a high-power load, and the high-power load is connected with the relay module through a load discharging loop.
The human-computer interaction interface adopts a touch display screen, and the touch display screen is connected with the main control unit.
The power supply unit adopts a lithium battery power supply module, and the main control unit is connected with the lithium battery power supply module through a charging circuit.
The data output interface comprises a USB interface and/or an Ethernet interface, and the USB interface and/or the Ethernet interface are connected with the main control unit.
According to the invention, the storage batteries to be tested are tested in groups, and the grouping of the batteries with problems is gradually reduced by using a regrouping method until the problem batteries are screened out at last, so that the purposes of quickly testing the internal resistance of the storage batteries and quickly finding out the problem batteries are achieved, and the problems of low working efficiency and high labor cost in manual detection of the internal resistance of the storage batteries in the prior art are solved; the internal resistance of the storage battery to be tested is tested through the rapid internal resistance testing system of the storage battery, a human-computer interaction interface issues an instruction to the main control unit, the main control unit sends a control command to the acquisition processing unit, the acquisition processing unit starts the discharge control unit to work after receiving the command, the discharge unit is connected with a load discharge loop under the control of the acquisition processing unit, the discharge is completed through the load, the current acquisition module and the voltage acquisition module are matched to complete the acquisition of discharge current and discharge voltage, the internal resistance of the battery is finally measured, and the testing accuracy is provided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 illustrates the steps of the testing method of the present invention;
FIG. 2 is a control schematic block diagram of the present invention;
FIG. 3 is a logic diagram for the operation of the present invention.
In the figure: the intelligent power supply device comprises a main control unit 1, a man-machine interaction interface 2, a power supply unit 3, a USB interface 4, an Ethernet interface 5, an indicator light unit 6, an acquisition processing unit 7, a discharge control unit 8, a discharge unit 9, a current acquisition module 10 and a voltage acquisition module 11.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1, the invention provides a method for rapidly testing internal resistance of a storage battery, which comprises the following steps: s1: dividing the storage battery to be tested into a plurality of groups of storage battery packs to be tested, carrying out internal resistance test on each group of storage battery packs to be tested by using a storage battery internal resistance rapid test system, and comparing the test result with the standard internal resistance value of the storage battery to find out the storage battery pack to be tested with defective batteries; s2: dividing the storage battery packs to be tested with the defective batteries into two slave-level storage battery packs to be tested, carrying out internal resistance test on each slave-level storage battery pack to be tested by using a storage battery internal resistance rapid test system, and comparing the test result with the standard internal resistance value of the storage battery to find out the slave-level storage battery packs to be tested with the defective batteries; s3: and step S2 is repeated until all bad batteries in the battery to be tested are found out.
During specific testing, the storage batteries to be tested are divided into 8 groups of storage battery packs to be tested in equal parts, and each group of storage battery packs to be tested is provided with 13 storage batteries to be tested. Firstly, carrying out internal resistance test on the 8 groups of storage battery packs to be tested, supposing that one group of storage battery packs to be tested has bad batteries, dividing the group of storage battery packs to be tested into two groups of secondary storage battery packs to be tested in a regrouping mode, and then respectively testing to find out which group of secondary storage battery packs to be tested has the bad batteries. If the two groups of secondary storage battery packs to be tested have bad batteries or one group of the two groups of secondary storage battery packs to be tested has bad batteries, the secondary storage battery packs to be tested with the bad batteries are respectively subdivided to obtain a plurality of groups of three-stage storage battery packs to be tested, and then the internal resistance test is carried out on the plurality of groups of three-stage storage battery packs to be tested to find out the group of the problem battery. By analogy, the grouping of the batteries with problems is gradually reduced by using a regrouping method until the batteries with problems are screened out finally, and the purposes of quickly testing the internal resistance of the storage battery and quickly finding out the batteries with problems are achieved.
As shown in fig. 2 and fig. 3, the invention further provides a system for rapidly testing internal resistance of a storage battery, which includes a main control unit 1, the main control unit 1 may select an STM32F302CBT6TR type microcontroller, the main control unit 1 is respectively connected with a human-computer interaction interface 2, a power supply unit 3, an indicator light unit 6 and an acquisition processing unit 7, wherein the human-computer interaction interface 2 is used for realizing a human-computer interaction function, a tester can input test parameters and control commands to the main control unit 1 through the human-computer interaction interface 2, and data received by the main control unit 1 and a test result of internal resistance of the battery can be fed back to the human-computer interaction interface 2 for display, so that the tester can conveniently check the data and the test result. In this embodiment, the human-computer interaction interface 2 may adopt a 10-inch touch display screen, and the touch display screen is connected with the main control unit 1, and the touch display screen may be used for inputting test parameters and control commands, and may also display collected data and test results, which is convenient to use. In addition, the whole communication process can be monitored through the man-machine interaction interface 2 and used for prompting communication errors and the like. The power supply unit 3 can adopt a lithium battery power supply module, the main control unit 1 is connected with the lithium battery power supply module through a charging circuit, and the power supply unit 3 is used for supplying power for the whole test system. The indicator light unit 6 may adopt an LED indicator light, and the working state of the main control unit 1 may be indicated by the LED indicator light, for example, the working state is displayed to be normal or abnormal.
The acquisition processing unit 7 is used for processing the acquired data and feeding back the data to the main control unit 1. The acquisition and processing unit 7 is respectively connected with a data acquisition unit and a discharge control unit 8, the discharge control unit 8 is connected with a discharge unit 9, the acquisition and processing unit 7 receives a control command issued by the main control unit 1 and controls the discharge control unit 8 to work, the discharge control unit 8 drives the discharge unit 9 to accurately discharge, meanwhile, the acquisition and processing unit 7 also controls the data acquisition unit to acquire data such as discharge voltage and current, the data acquired by the data acquisition unit is fed back to the acquisition and processing unit 7 to be processed, and finally, the acquisition and processing unit 7 sends the processed data information to the main control unit 1 through RS 232.
Further, in this embodiment, the data acquisition unit includes a current acquisition module 10 and a voltage acquisition module 11, and both the current acquisition module 10 and the voltage acquisition module 11 are connected to the acquisition processing unit 7. The current collection module 10 and the voltage collection module 11 are respectively used for collecting discharge current and discharge voltage of the discharge unit 9, wherein the current collection module 10 can adopt a current sensor, the voltage collection module 11 can adopt a voltage sensor, and data collected by the current sensor and the voltage sensor are transmitted to the collection processing unit 7 for processing. The discharging control unit 8 comprises a relay module, the relay module is respectively connected with the acquisition processing unit 7 and the discharging unit 9, and the relay module receives a control command of the acquisition processing unit 7 and controls the discharging unit 9 to discharge. The discharge unit 9 includes a high power load connected to the relay module through a load discharge circuit. By adopting a high-power load technology, 100A impact current can be borne instantly, the discharging unit is switched on a load discharging loop under the control of the collecting and processing unit, discharging is carried out through the load, the collecting of discharging current and discharging voltage is completed by matching the current collecting module and the voltage collecting module, internal resistance calculation is carried out, finally obtained data are transmitted to the main control unit through the collecting and processing unit, and the data are fed back to the touch display screen by the main control unit.
Further, the main control unit 1 is further connected with a data output interface, the data output interface includes a USB interface 4 and/or an ethernet interface 5, and the USB interface 4 and/or the ethernet interface 5 are both connected with the main control unit 1. The USB interface 4 and the ethernet interface 5 are both used for accessing external devices, including a background monitoring device, and the like, and data, parameters, and the like stored in the main control unit 1 can be transmitted to the background monitoring device and the like through the USB interface 4 or the ethernet interface 5 for backup or printing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method for rapidly testing the internal resistance of a storage battery is characterized by comprising the following steps:
s1: dividing the storage battery to be tested into a plurality of groups of storage battery packs to be tested, carrying out internal resistance test on each group of storage battery packs to be tested by using a storage battery internal resistance rapid test system, and comparing the test result with the standard internal resistance value of the storage battery to find out the storage battery pack to be tested with defective batteries;
s2: dividing the storage battery packs to be tested with the defective batteries into two slave-level storage battery packs to be tested, carrying out internal resistance test on each slave-level storage battery pack to be tested by using a storage battery internal resistance rapid test system, and comparing the test result with the standard internal resistance value of the storage battery to find out the slave-level storage battery packs to be tested with the defective batteries;
s3: and step S2 is repeated until all bad batteries in the battery to be tested are found out.
2. The utility model provides a quick test system of battery internal resistance which characterized in that: the device comprises a main control unit (1), wherein the main control unit (1) is respectively connected with a human-computer interaction interface (2), a power supply unit (3), an indicator lamp unit (6) and an acquisition processing unit (7), the acquisition processing unit (7) is respectively connected with a data acquisition unit and a discharge control unit (8), the data acquisition unit is connected with a storage battery pack to be tested, and the discharge control unit (8) is connected with a discharge unit (9); the main control unit (1) is also connected with a data output interface.
3. The system for rapidly testing the internal resistance of the storage battery according to claim 2, is characterized in that: the data acquisition unit comprises a current acquisition module (10) and a voltage acquisition module (11), the current acquisition module (10) and the voltage acquisition module (11) are both connected with the acquisition processing unit (7), and the current acquisition module (10) and the voltage acquisition module (11) are both connected with the storage battery to be tested.
4. The system for rapidly testing the internal resistance of the storage battery according to claim 2 or 3, characterized in that: the discharging control unit (8) comprises a relay module, and the relay module is respectively connected with the acquisition processing unit (7) and the discharging unit (9).
5. The system for rapidly testing the internal resistance of the storage battery according to claim 4, wherein: the discharging unit (9) comprises a high-power load, and the high-power load is connected with the relay module through a load discharging loop.
6. The system for rapidly testing the internal resistance of the storage battery according to any one of claims 2, 3 or 5, wherein: the human-computer interaction interface (2) adopts a touch display screen, and the touch display screen is connected with the main control unit (1).
7. The system for rapidly testing the internal resistance of the storage battery according to claim 6, is characterized in that: the power supply unit (3) adopts a lithium battery power supply module, and the main control unit (1) is connected with the lithium battery power supply module through a charging circuit.
8. The system for rapidly testing the internal resistance of the storage battery according to claim 7, is characterized in that: the data output interface comprises a USB interface (4) and/or an Ethernet interface (5), and the USB interface (4) and/or the Ethernet interface (5) are connected with the main control unit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248289.5A CN113917349A (en) | 2021-10-26 | 2021-10-26 | Method and system for rapidly testing internal resistance of storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111248289.5A CN113917349A (en) | 2021-10-26 | 2021-10-26 | Method and system for rapidly testing internal resistance of storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113917349A true CN113917349A (en) | 2022-01-11 |
Family
ID=79242883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111248289.5A Pending CN113917349A (en) | 2021-10-26 | 2021-10-26 | Method and system for rapidly testing internal resistance of storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113917349A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202363974U (en) * | 2011-11-21 | 2012-08-01 | 深圳市迪迪美环保科技有限公司 | Storage battery set on-line monitoring system based on remote monitoring platform |
| CN202854237U (en) * | 2012-10-18 | 2013-04-03 | 何用辉 | Storage battery on-line internal resistance detection device having adaptive test technology |
| CN103018566A (en) * | 2012-11-26 | 2013-04-03 | 力神迈尔斯动力电池系统有限公司 | Lithium ion battery direct current internal resistance testing method and battery screening method |
| CN202939223U (en) * | 2012-10-23 | 2013-05-15 | 江苏省电力公司苏州供电公司 | Storage battery on-line internal resistance testing device |
| CN112345865A (en) * | 2020-11-10 | 2021-02-09 | 内蒙古科技大学 | Power capacitor running state online evaluation early warning device and method |
| CN113466730A (en) * | 2021-06-30 | 2021-10-01 | 郑州易能科技有限公司 | Storage battery internal resistance flash measurement device and method |
-
2021
- 2021-10-26 CN CN202111248289.5A patent/CN113917349A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202363974U (en) * | 2011-11-21 | 2012-08-01 | 深圳市迪迪美环保科技有限公司 | Storage battery set on-line monitoring system based on remote monitoring platform |
| CN202854237U (en) * | 2012-10-18 | 2013-04-03 | 何用辉 | Storage battery on-line internal resistance detection device having adaptive test technology |
| CN202939223U (en) * | 2012-10-23 | 2013-05-15 | 江苏省电力公司苏州供电公司 | Storage battery on-line internal resistance testing device |
| CN103018566A (en) * | 2012-11-26 | 2013-04-03 | 力神迈尔斯动力电池系统有限公司 | Lithium ion battery direct current internal resistance testing method and battery screening method |
| CN112345865A (en) * | 2020-11-10 | 2021-02-09 | 内蒙古科技大学 | Power capacitor running state online evaluation early warning device and method |
| CN113466730A (en) * | 2021-06-30 | 2021-10-01 | 郑州易能科技有限公司 | Storage battery internal resistance flash measurement device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102608537B (en) | Feed network type heavy-power battery testing device | |
| CN102279369A (en) | Intelligent remote online storage battery detection method and system | |
| CN202111502U (en) | Battery management device with balanced charge-discharge function | |
| CN105510833A (en) | Storage battery health status detection method, device and system | |
| CN116632983A (en) | Charging and discharging control system suitable for outdoor energy storage power supply | |
| CN109017372A (en) | A kind of fault detection system based on power battery management system | |
| CN104965178A (en) | Lithium battery management system | |
| CN201689161U (en) | Battery performance detector | |
| CN207440262U (en) | Dynamic lithium battery group real-time monitoring system | |
| CN103760496B (en) | A kind of electric automobile power battery group charging and discharging capabilities test device and method | |
| CN104133124A (en) | Detection device for BMS (battery pack management system) | |
| CN204794175U (en) | Intelligent charging and discharging equipment | |
| CN111786041B (en) | Battery management system for photoelectric technology | |
| CN211217608U (en) | Rapid sorting device for retired power batteries | |
| CN102680908A (en) | Battery status detection record analyzer and control method | |
| CN112180268A (en) | Rapid detection method for retired power battery | |
| CN201174607Y (en) | On-line detection and activation apparatus for accumulator | |
| CN113917349A (en) | Method and system for rapidly testing internal resistance of storage battery | |
| CN217213067U (en) | Battery health degree detection device | |
| CN202676891U (en) | Cell state detection and record analyzer | |
| CN106596035B (en) | A kind of device for the monitoring of wind-tunnel strain gauge balance health status | |
| CN203337801U (en) | Novel conductance tester used for storage battery | |
| CN204116569U (en) | A kind of detection platform and supporting management system becoming oar electric battery | |
| CN203352207U (en) | Detection device for BMS battery pack management system | |
| CN219657841U (en) | Automatic monomer switching control system for storage battery pack detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |