CN102608537A - Feed network type heavy-power battery testing device - Google Patents
Feed network type heavy-power battery testing device Download PDFInfo
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- CN102608537A CN102608537A CN2012100540994A CN201210054099A CN102608537A CN 102608537 A CN102608537 A CN 102608537A CN 2012100540994 A CN2012100540994 A CN 2012100540994A CN 201210054099 A CN201210054099 A CN 201210054099A CN 102608537 A CN102608537 A CN 102608537A
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Abstract
The invention discloses a feed network type heavy-power battery testing device which comprises a monitoring server, a protocol gateway, a charge and discharge motor, a battery data acquisition module, a battery management system acquisition module and a power battery pack. According to the invention, accurate and reliable basis data can be rapidly and accurately provided for a power battery in the application to an electric vehicle. A background software system with a user programming capacity and a battery evaluating capacity carried in the feed network type heavy-power battery testing device ensures that a user can complete the detection of the function of a power battery pack and the testing of the output performance of the power battery pack according to a set control process, thus the feed network type heavy-power battery testing device has stronger practical value.
Description
Technical field
The present invention relates to a kind of feedback net type high power battery proving installation, belong to the battery technology field.
Background technology
At present, along with the development of battery technology, electrokinetic cell has had large increase at aspects such as energy density, power density and cycle lives.Yet find that in practice process it is inconsistent cell to occur after the electrokinetic cell SP in groups, the serviceable life of feasible whole Battery pack and dynamic perfromance also can't satisfy the requirement of application scenarios such as electric automobile, accumulator system far away from cell.Therefore, be accompanied by the large-scale development of electric automobile, how electrokinetic cell carried out sorting in groups and assembly testing, comprehensive evaluation becomes the electric property of Battery pack to become the key issue that needs to be resolved hurrily.The power battery pack proving installation mainly comprises power battery pack power output apparatus and battery data pick-up unit and corresponding software system.The home equipment technology imperfection that is used for the power battery pack test at present; Performance index are difficult to satisfy test request; Therefore the main manufacturer of power battery pack testing apparatus concentrates on the European and American areas, procurement price height, production cycle length, maintenance difficult, has seriously hindered the test and the assessment of power battery pack; Existing simultaneously electrokinetic cell monitor system software is open poor, lacks the control of complicated algorithm.
Just to the hardware device of different electric pressure designs, daemon software only comprises simple monitoring function in existing electrokinetic cell system, and is open poor; And the available dynamic battery test apparatus some do not comprise the feedback grid function, cause the energy dissipation in the test process.And current existing domestic high power switch type electrokinetic cell equipment and technology falls behind; Dynamic responding speed is slow; Energy density and conversion efficiency are lower, and its electrokinetic cell monitoring software only comprises simple monitoring function, can't embed the complicacy test and the flow process control algolithm of integrated battery group; Daemon software is open poor, can't satisfy the complicated test function of advanced level user.Therefore, existing electrokinetic cell device does not comprise the functional test of power battery pack, does not promptly comprise the functional test of battery management system, the functional test of high tension apparatus etc., is difficult to adapt to the detection demand of electric battery (bag) behind the electric automobile large-scale development.
At present, under the condition of the preliminary large-scale development of electric automobile, the Function detection of electrokinetic cell bag is significant to the reliability service of electric vehicle.Now, the Function detection of electrokinetic cell bag mainly is the detection of dispatching from the factory, and is responsible for by Battery Plant or power brick factory.Yet the stability of electron device possibly change after operation a period of time, the easy fault state, and the inefficacy of electron device has directly determined the security of electrokinetic cell operation.At present bag inner high voltage device misoperation or phenomenon of the failure such as be failure to actuate appear repeatedly that the battery management system accuracy of detection descends, defencive function lost efficacy and in the batteries of electric automobile packet system of actual motion; Cause under fault or unmonitored condition, moving of electrokinetic cell bag, have serious potential safety hazard.
Because the output characteristics of electrokinetic cell bag is relevant with the cell of composition power brick, and the characteristic of cell is relevant with the ageing state of battery, so the output characteristics of electrokinetic cell bag is along with the increase of working time variation gradually.Drawn by practical experience, after electric automobile operation a period of time, output characteristics such as the capacity characteristic of electrokinetic cell, multiplying power property and original state are completely different, thereby the power performance of vehicle such as continual mileage, acceleration etc. also can change.Therefore, need the output characteristics of electrokinetic cell bag regularly be detected, so that obtain current virtual condition and the performance parameter of battery, for vehicle provides genuine and believable data.
Therefore, press for and develop the hardware test platform that to accomplish power battery pack Function detection, output performance test according to the control flow that user oneself sets.
Summary of the invention
The object of the present invention is to provide a kind of feedback net type high power battery proving installation that can overcome above-mentioned technical matters; It can accomplish the power battery pack test to integrated electrokinetic cell high-performance charge-discharge test and monitoring software thereof; Can realize the two-way flow of the energy content of battery and electrical network energy in the electrokinetic cell process, for the functional test and the assessment of electrokinetic cell provides complete hardware platform.
The present invention includes: carried the high open intelligent battery test procedure that possesses Battery Diagnostic evaluation function and user's advanced programming ability and database management language monitoring server, protocol gateway equipment, possess the main circuit topological structure of energy two-way flow charge-discharge machine, possess high synchronism the battery data acquisition module, be arranged in battery management system (BMS), the electrokinetic cell bag of battery case; Said monitoring server is connected with protocol gateway equipment through the LAN bus respectively, and said protocol gateway equipment is connected with the battery data acquisition module with charge-discharge machine respectively through the CAN bus; Said protocol gateway equipment is connected with battery management system through the CAN bus, and said battery management system is connected with the electrokinetic cell bag through the sampling bus respectively with the battery data acquisition module; Said charge-discharge machine is connected through the power bus with the electrokinetic cell bag.
Network-bus of the present invention is divided into power bus, sampling bus and data communication bus, and said data communication bus comprises two kinds of LAN bus and CAN buses; Said power bus is mainly used in the output of battery charging and discharging electric current, for electrokinetic cell provides energy input and active load; Said sampling bus is used for the battery analog information is inserted the battery standard testing apparatus to guarantee the collection of battery electric quantity; Said data communication bus is used for being responsible for the reception of sending of the gathering of whole charging and discharging test process battery data, supervisory system steering order and battery management system data.
Said monitoring server is responsible for gathering battery electric quantity information, battery management system is carried out functional test and accuracy of detection test, the control of battery case electrical system functional test flow process, the control of electrokinetic cell characteristic parameter testing algorithm and the system management of battery data storehouse.When the parallel use of a plurality of battery testers, each battery tester can carry out cascade control through lan network, under a monitor network, works.Be connected with the network switch simultaneously, realize functions such as remote access, the network storage.
Said charge-discharge machine comprises successively isolating transformer, PWM rectifier and the two-way DC/DC transducer that connects: said PWM rectifier is the topology structure of boosting, and it comprises with the insulated gate bipolar power tube being master's three-phase controlled rectification bridge; Have rectification and inversion dual-use function.Said two-way DC/DC converter using be basic structure with buck-boost (Buck-Boost) circuit; Comprise two buck-boost transducers; The negative terminal of two buck-boost converter output terminals links together; And the anode of two buck-boost transducers has constituted total output voltage respectively, is connected to battery to be tested.Because adopt the control mode of buck-boost transducer, its dynamic response is very fast, output voltage range is wide, can realize charging-quick conversion between discharge mode, has both increased power system capacity, has reduced ripple current again.
Said battery data acquisition module comprises number sampling bus, total information harvester, parallel sampling device, series battery; Said sampling bus is connected with the parallel sampling device with the total information harvester respectively, and said parallel sampling device is connected with series battery.Said total information harvester is connected with the output negative terminal with the output plus terminal of series battery respectively.
Said battery data acquisition module guarantees that through sampling bus cascade the battery analog information can insert the battery standard testing apparatus, guarantees the information synchronization gatherer processes such as voltage, electric current in the battery charge and discharge process simultaneously.Wherein the total information harvester is that synchronizing information is sent end, in charge and discharge process, for the parallel sampling device synchronous sampling signal is provided through the sampling bus, and the coordination of synchronous acquisition is controlled in the responsible whole charging and discharging test process.Increase along with cell series connection quantity; The parallel sampling device also increases synchronously; But because each parallel sampling device adopts parallel sampling pattern, module voltage, temperature acquisition possess independence and synchronism, and when in a plurality of parallel acquisition devices while access network buses; It is synchronous opportunity to carry out sampling according to the sampling bus signals; Therefore no matter in one group of electrokinetic cell bag how many joint series connection cells are arranged, utilize said battery data acquisition module to carry out synchronous acquisition, satisfied analysis requirement each monomer battery voltage, temperature data in the series battery to the voltage of each cell in the series battery, temperature etc.
The present invention is directed to the shortcoming that existing battery changes into and testing apparatus user program ability is weak; Foundation comprises the function library of functions such as data acquisition, serial ports control, data analysis, data presentation and data storage; The user can programme according to realistic objective and demand; According to the real working condition data battery is carried out charge-discharge test, real-time processing data and export result during program run is convenient to realize flexile battery testing scheme; The user can control input and output electric current, voltage according to the current feedback states of battery simultaneously, forms to have the battery testing process of closed-loop control, is convenient to the battery applications scheme that the user develops optimization; Simultaneously; Utilize the battery parameter that detects in the test process; Further analyze and calculate characterisitic parameters such as obtaining internal resistance, polarization, form database and can draw battery voltage, temperature, internal resistance, the isoparametric change curve of SOC, under assessment algorithm and parameter threshold condition that the user sets; Static characteristics and dynamic perfromance to battery are discerned, are diagnosed and assess, critical functions such as the consistance evaluation of completion battery, sorting; The present invention can be that the operation enterprise of electrokinetic cell manufacturer, electrokinetic cell research and development institution, electrokinetic cell bag manufacturer, electric automobile whole manufacturing enterprise, electrokinetic cell testing agency and electrokinetic cell provides functional test and battery performance test after scientific and effective battery is used in groups quickly and accurately; For the application of electrokinetic cell on electric automobile provides basic data accurately and reliably; The user program ability that has that the present invention is carried and the daemon software system of cell evaluation ability can accomplish to the detection of power battery pack function, the test of output performance the user according to the control flow of oneself setting, and have stronger practical value.
Description of drawings
Fig. 1 is a kind of one-piece construction synoptic diagram of presenting net type high power battery proving installation according to the invention;
Fig. 2 is a kind of structural representation of presenting the charge-discharge machine of net type high power battery proving installation according to the invention;
Fig. 3 is a kind of structural representation of presenting the battery data acquisition module of net type high power battery proving installation according to the invention.
Embodiment
Describe the present invention below in conjunction with accompanying drawing and embodiment.As shown in Figure 1, the present invention includes: carried the high open intelligent battery test procedure that possesses Battery Diagnostic evaluation function and user's advanced programming ability and monitoring server 1, protocol gateway equipment 2, the protocol gateway equipment 3 of database management language, the charge-discharge machine 4 that possesses the main circuit topological structure of energy two-way flow, the battery data acquisition module 5 that possesses high synchronism, the battery management system 6 that is arranged in battery case, electrokinetic cell bag 7; Monitoring server 1 is connected with protocol gateway equipment 3 with protocol gateway equipment 2 through the LAN bus respectively, and protocol gateway equipment 2 is connected with battery data acquisition module 5 with charge-discharge machine 4 respectively through the CAN bus; Protocol gateway equipment 3 is connected with battery management system 6 through the CAN bus, and battery management system 6 is connected with electrokinetic cell bag 7 through the sampling bus respectively with battery data acquisition module 5; Charge-discharge machine 4 is connected through the power bus with electrokinetic cell bag 7.
Charge-discharge machine 4 comprises that successively the isolating transformer 41, PWM rectifier 42 and the two-way DC/DC transducer 43:PWM rectifier 42 that connect are the topology structure of boosting, and it comprises with the insulated gate bipolar power tube being master's three-phase controlled rectification bridge; Have rectification and inversion dual-use function.It is basic structure that two-way DC/DC transducer 43 has adopted with buck-boost (Buck-Boost) circuit; Comprise two buck-boost transducers; The negative terminal of two buck-boost converter output terminals links together; And the anode of two buck-boost transducers has constituted total output voltage respectively, is connected to battery to be tested.
Battery data acquisition module 5 comprises total information harvester 511, parallel sampling device 512, parallel sampling device 513, parallel sampling device 51n, series battery 521, series battery 522, series battery 52n; Said sampling bus is connected with total information harvester 511, parallel sampling device 512, parallel sampling device 513, parallel sampling device 51n respectively; Parallel sampling device 512 is connected with series battery 521; Parallel sampling device 513 is connected with series battery 522, and parallel sampling device 51n is connected with series battery 52n; Total information harvester 511 is connected with the output negative terminal with the output plus terminal of series battery respectively.
Battery data acquisition module 5 guarantees that through the cascade of sampling bus the battery analog information can insert the battery standard testing apparatus, guarantees the information synchronization gatherer processes such as voltage, electric current in the battery charge and discharge process simultaneously.Wherein total information harvester 511 sends end for synchronizing information; In charge and discharge process; Through the sampling bus is that parallel sampling device 511, parallel sampling device 512, parallel sampling device 513, parallel sampling device 51n provide synchronous sampling signal, and the coordination control of synchronous acquisition in the responsible whole charging and discharging test process.Increase along with cell series connection quantity; The parallel sampling device also increases synchronously; But because each parallel sampling device adopts parallel sampling pattern, module voltage, temperature acquisition possess independence and synchronism, and when in a plurality of parallel acquisition devices while access network buses; It is synchronous opportunity to carry out sampling according to the sampling bus signals; Therefore no matter in one group of electrokinetic cell bag how many joint series connection cells are arranged, utilize said battery data acquisition module to carry out synchronous acquisition, satisfied analysis requirement each monomer battery voltage, temperature data in the series battery to the voltage of each cell in the series battery, temperature etc.
Of the present inventionly carried the high open intelligent battery test procedure that possesses Battery Diagnostic evaluation function and user's advanced programming ability and the monitoring server 1 of database management language can be accomplished the following test function of electrokinetic cell:
1. to the 6 accuracy of detection verifications of the battery management system in the battery case, comprising:
(1) static check: do not have under the situation of electric current discharging and recharging the starting stage; Monitoring server 1 is gathered cell voltage, electric current, temperature (alternative) information through battery data acquisition module 5; And compare the accuracy of detection of test battery management system 6 with cell voltage, electric current, temperature (alternative) that battery management system 6 is gathered.
(2) dynamic check: in electrokinetic cell charge-discharge test process; Monitoring server 1 is gathered cell voltage, electric current, temperature (alternative) information through battery data acquisition module 5; And compare the accuracy of detection of test battery management system 6 with cell voltage, electric current, temperature (alternative) that battery management system 6 is gathered.
2. electrokinetic cell performance parameter test, comprising:
(1) volume test: the actual capacity information calculations electric battery that monitoring server 1 is gathered through battery data acquisition module 5 discharge and recharge actual capacity, and write in the database of monitoring server 1.
(2) internal resistance test: monitoring server 1 is gathered the information of voltage of electric battery in the charge and discharge process through battery management system 6, calculates the DC internal resistance of each cell, and writes in the database of monitoring server 1.
(3) charge and discharge platform uniformity test: monitoring server 1 is gathered the information of voltage of electric battery in the charge and discharge process through battery management system 6; The online working voltage platform of obtaining each cell; Compare consistance, and write in the database of monitoring server 1.
3. battery case discharges and recharges temperature field test, comprising: monitoring server 1 is through the temperature information of each several part in the battery case in battery management system 6 (or infrared thermoviewer) the collection charge and discharge process, and whether the test power line connects good.
4. detecting information statistics output, comprising: behind battery testing, 1 pair of data of monitoring server are carried out statistical study, with test result through printout.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in scope disclosed by the invention; The variation that can expect easily or replacement all should be encompassed in the protection domain of claim of the present invention.
Claims (3)
1. present net type high power battery proving installation for one kind; It is characterized in that, comprising: carried the high open intelligent battery test procedure that possesses Battery Diagnostic evaluation function and user's advanced programming ability and monitoring server, the protocol gateway equipment of database management language, the charge-discharge machine that possesses the main circuit topological structure of energy two-way flow, the battery data acquisition module that possesses high synchronism, the battery management system that is arranged in battery case, electrokinetic cell bag; Said monitoring server is connected with protocol gateway equipment through the LAN bus respectively, and said protocol gateway equipment is connected with the battery data acquisition module with charge-discharge machine respectively through the CAN bus; Said protocol gateway equipment is connected with battery management system through the CAN bus, and said battery management system is connected with the electrokinetic cell bag through the sampling bus respectively with the battery data acquisition module; Said charge-discharge machine is connected through the power bus with the electrokinetic cell bag; Said monitoring server is responsible for gathering battery electric quantity information, said battery management system is carried out functional test and accuracy of detection test, the control of battery case electrical system functional test flow process, the control of electrokinetic cell characteristic parameter testing algorithm and the system management of battery data storehouse; When the parallel use of a plurality of battery testers, each battery tester carries out cascade control through lan network, under a monitor network, works, and is connected with the network switch simultaneously, realizes functions such as remote access, the network storage.
2. a kind of feedback net type high power battery proving installation according to claim 1; It is characterized in that; Said charge-discharge machine comprises successively isolating transformer, PWM rectifier and the two-way DC/DC transducer that connects: said PWM rectifier is the topology structure of boosting, and it comprises with the insulated gate bipolar power tube being master's three-phase controlled rectification bridge; Have rectification and inversion dual-use function; Said two-way DC/DC converter using be basic structure with the buck-boost circuit; Comprise two buck-boost transducers; The negative terminal of two buck-boost converter output terminals links together, and the anode of two buck-boost transducers has constituted total output voltage respectively, is connected to battery to be tested.
3. a kind of feedback net type high power battery proving installation according to claim 1 is characterized in that, said battery data acquisition module comprises sampling bus, total information harvester, parallel sampling device, series battery; Said sampling bus is connected with the parallel sampling device with the total information harvester respectively, and said parallel sampling device is connected with series battery, and said total information harvester is connected with the output negative terminal with the output plus terminal of series battery respectively.
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| CN105589044A (en) * | 2015-12-09 | 2016-05-18 | 天津市捷威动力工业有限公司 | Automatic test system and test method for testing function of power battery pack |
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| CN104880605A (en) * | 2014-02-28 | 2015-09-02 | 比亚迪股份有限公司 | Battery management system and battery monomer DC internal resistance measuring method |
| CN104880605B (en) * | 2014-02-28 | 2018-05-08 | 比亚迪股份有限公司 | The measuring method of the DC internal resistance of battery management system and battery cell |
| CN105158691A (en) * | 2015-07-29 | 2015-12-16 | 安徽安凯汽车股份有限公司 | New energy automobile power battery pack performance test device and test method thereof |
| CN105589044A (en) * | 2015-12-09 | 2016-05-18 | 天津市捷威动力工业有限公司 | Automatic test system and test method for testing function of power battery pack |
| CN105911475A (en) * | 2016-04-12 | 2016-08-31 | 中国船舶重工集团公司第七〇二研究所 | Power pack testing system |
| CN106814323A (en) * | 2016-11-08 | 2017-06-09 | 广东探金电子科技有限公司 | A kind of Power Battery Testing System |
| CN110658458A (en) * | 2018-06-29 | 2020-01-07 | 深圳市瑞能实业股份有限公司 | Battery pack simulation system |
| CN111220923A (en) * | 2018-11-26 | 2020-06-02 | 深圳市泰斯电子有限公司 | Battery or battery protection board detection method based on big data management |
| CN112564204A (en) * | 2020-11-05 | 2021-03-26 | 东莞欧陆通电子有限公司 | Battery pack electric quantity management system and method |
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| CN102608537B (en) | 2014-09-17 |
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