CN103545853A - Intelligent lithium battery pack management system - Google Patents
Intelligent lithium battery pack management system Download PDFInfo
- Publication number
- CN103545853A CN103545853A CN201210243304.1A CN201210243304A CN103545853A CN 103545853 A CN103545853 A CN 103545853A CN 201210243304 A CN201210243304 A CN 201210243304A CN 103545853 A CN103545853 A CN 103545853A
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- China
- Prior art keywords
- battery
- lithium
- energy
- lithium battery
- battery pack
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 27
- 238000004146 energy storage Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000005516 engineering process Methods 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims description 2
- 238000003745 diagnosis Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000012546 transfer Methods 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract 2
- 230000005611 electricity Effects 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses an intelligent lithium battery pack management system which is an efficient, intelligent, multifunctional chargeable-lithium-battery-pack protecting and managing system independently developed by our company. By the system, dynamic monitoring is performed on operating states of lithium battery packs and lithium battery units, residual electricity quantity of the lithium batteries is accurately measured, charging and discharging protection is performed on the lithium batteries, and the lithium batteries are ensured to be in an optimal state, so that the objectives of prolonging service life of the lithium batteries, reducing operational cost and further improving reliability of the battery packs are achieved. In the field of new energy and efficient energy conservation, the intelligent lithium battery pack management system belongs to novel efficient energy conservation and storage techniques and related products, and relates to novel power battery (pack) and energy storage battery techniques and related products.
Description
1, the field of invention:
The conversion of new and effective energy and storing technology occupy critical role in to the demand of new forms of energy meeting modern society.Wherein, novel high-performance green battery has become the main power source of the fastest-rising mobile communication of message area and office equipment industry, and Novel power battery and energy-storage battery will become the energy basis of the equipments such as following motor vehicle and Distributed Power Resource system.The present invention's (lithium battery group intelligent management system) relates under Novel power battery (group) and energy-storage battery technology, and lithium-ion-power cell (group) technology, battery management system technology and Related product thereof, belong to new forms of energy and energy-efficient field.
2, background technology;
A set of efficient, intelligent, the multi-functional chargeable lithium cell group protection of lithium battery group intelligent management system Shi Wo company independent development, management system.Crucial key technology:
1). in battery pack, the monomer voltage of every batteries is, the node temperature collection of battery pack Internally fixed node point; Assembled battery total voltage, the collection of total current during charge and discharge.
2). cell overvoltage, under-voltage, assembled battery total voltage overvoltage during charging, total current overcurrent; During electric discharge, total voltage is under-voltage, total current overcurrent; Battery pack temperature waits the judgement of fault message extremely, and secondary is reported to the police; Take error protection measure (as major loop Control, starting fan are controlled) simultaneously.
3). the parameters such as the voltage coming up according to collection, electric current, temperature, the state-of-charge SOC (StateofCharge) of battery pack is carried out to estimation on line.
4). at debugging and maintenance phase, with the communication of upper PC asynchronous serial mouth, upload battery pack state information, receive control command and parameter modification instruction that host computer sends: host computer possesses battery status parameter autostore function, the data of uploading with Excel form storage battery management system simultaneously.
5). upload battery pack state information, fault message to power consumption equipment, receive control command simultaneously.Each node communication of the inner use of battery management system CAN network.
6). in battery pack between each cell inconsistency judge, control equalizing charge module.Determine equalizing charge opportunity, calculate the output voltage values size of equalizing charge, be used for reducing the inconsistency of monomer in battery pack.
3, the content of this invention:
1), native system adopts the modular construction based on CAN bus, the mode combining with analog circuit by digital circuit, has realized a kind of novel battery group intelligent management system that can carry out on-line monitoring, performance prediction, failure diagnosis and management to lithium battery group and module thereof.
2), how according to the historical data of voltage, temperature and the charging and discharging currents of the every battery gathering, set up the more accurate Mathematical Modeling of determining every battery remaining power, it is dump energy (SOC) the status metric technology of energy-storage battery, and by the self-learning function of battery pack, provide accurate state-of-charge.
3), the quick charge technology of energy-storage battery.This project is according to the chemical property of battery, and the quick charge technology of comprehensive study battery, utilizes and improve energy or change the means such as charging control mode, makes battery can reach the more than 95% of charging capacity at 1C (charging 1 hour).
4), battery electric quantity balancing technique.This project adopts energy transfer technique, and cell is reached behind balanced start-up point, utilizes high frequency switch mode that energy transmission is caused to next group.Design can reduce the caloric value after balanced startup like this, improves proportionality action, particularly in large-capacity battery pack application, has more advantages.
5), this project adopts Capacity Predication of Battery based method based on Coulomb meter to realize indication and the prediction of battery dump energy, and in conjunction with the working temperature of current battery, discharge rate, the factor such as aging, electric weight is revised, to obtain more high accuracy.4, the key technical indexes of this invention
According to the chemistry of ferric phosphate lithium ion battery, physical characteristic, and work in groups the parameter limit requirement under operating mode, design battery intelligent management system main performance index is as follows:
Cell overcharges and detects voltage 3.900V precision ± 25mV;
Cell overcharges and removes voltage 3.800V precision ± 60mV;
Cell overdischarge detects voltage 2.30V precision ± 80mV;
Voltage 2.70V precision ± 100mV is removed in cell overdischarge;
The balanced starting resistor 3.60V of cell precision ± 25mV;
Battery pack overcurrent protection electric current is adjustable according to demand;
Load short circuits protection;
System low current loss.
5, the effect of this invention:
The effect of this system is that lithium battery group and lithium cells running status are carried out to dynamic monitoring; accurately measure the dump energy of lithium battery; lithium battery is carried out to charge and discharge protection simultaneously; and make lithium battery be operated in optimum state, reach and extend lithium battery useful life, reduce operating cost, further improve the object of battery pack reliability.
Claims (5)
- The effect of this system is that lithium battery group and lithium cells running status are carried out to dynamic monitoring; accurately measure the dump energy of lithium battery; lithium battery is carried out to charge and discharge protection simultaneously; and make lithium battery be operated in optimum state, reach and extend lithium battery useful life, reduce operating cost, further improve the object of battery pack reliability.Claim:1. native system adopts the modular construction based on CAN bus, the mode combining with analog circuit by digital circuit, has realized a kind of novel battery group intelligent management system that can carry out on-line monitoring, performance prediction, failure diagnosis and management to lithium battery group and module thereof.
- 2. how according to the historical data of voltage, temperature and the charging and discharging currents of the every battery gathering, set up the more accurate Mathematical Modeling of determining every battery remaining power, it is dump energy (SOC) the status metric technology of energy-storage battery, and by the self-learning function of battery pack, provide accurate state-of-charge.
- 3. the quick charge technology of energy-storage battery.This project is according to the chemical property of battery, and the quick charge technology of comprehensive study battery, utilizes and improve energy or change the means such as charging control mode, makes battery can reach the more than 95% of charging capacity at 1C (charging 1 hour).
- 4. battery electric quantity balancing technique.This project adopts energy transfer technique, and cell is reached behind balanced start-up point, utilizes high frequency switch mode that energy transmission is caused to next group.Design can reduce the caloric value after balanced startup like this, improves proportionality action, particularly in large-capacity battery pack application, has more advantages.
- 5. this project adopts Capacity Predication of Battery based method based on Coulomb meter to realize indication and the prediction of battery dump energy, and in conjunction with the working temperature of current battery, discharge rate, the factor such as aging, electric weight is revised, to obtain more high accuracy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243304.1A CN103545853A (en) | 2012-07-13 | 2012-07-13 | Intelligent lithium battery pack management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243304.1A CN103545853A (en) | 2012-07-13 | 2012-07-13 | Intelligent lithium battery pack management system |
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| Publication Number | Publication Date |
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| CN103545853A true CN103545853A (en) | 2014-01-29 |
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| CN201210243304.1A Pending CN103545853A (en) | 2012-07-13 | 2012-07-13 | Intelligent lithium battery pack management system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167775A (en) * | 2014-07-22 | 2014-11-26 | 北京航空航天大学 | Charging and discharging balance method for battery pack |
| CN106516063A (en) * | 2016-12-01 | 2017-03-22 | 湖州市港航管理局 | Speed controller for coastal patrol vessel with super capacitor and power lithium battery |
| CN107508300A (en) * | 2017-08-31 | 2017-12-22 | 珠海格力电器股份有限公司 | Energy storage device state processing method and device and unit energy system |
| CN110535202A (en) * | 2019-07-30 | 2019-12-03 | 江苏中媒标牌制造有限公司 | Lithium battery intelligent charging and discharging control system and control method |
| CN112331937A (en) * | 2020-11-11 | 2021-02-05 | 河北零点新能源科技有限公司 | Novel lithium battery safety management system |
| CN115425699A (en) * | 2022-06-24 | 2022-12-02 | 岳阳耀宁新能源科技有限公司 | Intelligent control system for power supply |
| CN119230988A (en) * | 2024-11-28 | 2024-12-31 | 奥为科技(南京)有限公司 | A voltage detection device and detection method for a series battery pack for dynamic balancing |
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2012
- 2012-07-13 CN CN201210243304.1A patent/CN103545853A/en active Pending
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| CN1877473A (en) * | 2006-06-30 | 2006-12-13 | 中国南车集团株洲电力机车研究所 | Power battery management system for electric vehicle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167775A (en) * | 2014-07-22 | 2014-11-26 | 北京航空航天大学 | Charging and discharging balance method for battery pack |
| CN104167775B (en) * | 2014-07-22 | 2016-09-28 | 北京航空航天大学 | A kind of battery set charge/discharge balance method |
| CN106516063A (en) * | 2016-12-01 | 2017-03-22 | 湖州市港航管理局 | Speed controller for coastal patrol vessel with super capacitor and power lithium battery |
| CN106516063B (en) * | 2016-12-01 | 2018-06-26 | 湖州市港航管理局 | A kind of speed control of super capacitor and dynamic lithium battery ocean patrol ship |
| CN107508300A (en) * | 2017-08-31 | 2017-12-22 | 珠海格力电器股份有限公司 | Energy storage device state processing method and device and unit energy system |
| CN110535202A (en) * | 2019-07-30 | 2019-12-03 | 江苏中媒标牌制造有限公司 | Lithium battery intelligent charging and discharging control system and control method |
| CN110535202B (en) * | 2019-07-30 | 2024-06-11 | 江苏中媒标牌制造有限公司 | A lithium battery intelligent charging and discharging control system and control method |
| CN112331937A (en) * | 2020-11-11 | 2021-02-05 | 河北零点新能源科技有限公司 | Novel lithium battery safety management system |
| CN112331937B (en) * | 2020-11-11 | 2023-12-22 | 河北零点新能源科技有限公司 | A new type of lithium battery safety management system |
| CN115425699A (en) * | 2022-06-24 | 2022-12-02 | 岳阳耀宁新能源科技有限公司 | Intelligent control system for power supply |
| CN119230988A (en) * | 2024-11-28 | 2024-12-31 | 奥为科技(南京)有限公司 | A voltage detection device and detection method for a series battery pack for dynamic balancing |
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Application publication date: 20140129 |