CN111509809A - New energy battery management system - Google Patents
New energy battery management system Download PDFInfo
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- CN111509809A CN111509809A CN202010399466.9A CN202010399466A CN111509809A CN 111509809 A CN111509809 A CN 111509809A CN 202010399466 A CN202010399466 A CN 202010399466A CN 111509809 A CN111509809 A CN 111509809A
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- new energy
- energy battery
- unit
- discharge
- charge
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a new energy battery management system, which belongs to the technical field of new energy batteries and comprises a data acquisition unit, a data storage unit and a data processing unit, wherein the data acquisition unit is used for acquiring working parameters of the new energy battery; the regulating and controlling unit is used for managing and controlling the new energy battery in abnormal work; the communication interface is used for communication transmission between the battery management system and the upper computer; the charge and discharge management unit is used for managing the charge and discharge conditions of the new energy battery; and the main control unit is used for coordinating the work of each unit. The running state of the new energy battery is detected in real time through the data acquisition unit, if the running state is abnormal, the new energy battery is regulated and controlled through the regulation and control unit, the working stability of the new energy battery is guaranteed, the battery management system is further provided with a charging and discharging management unit to manage charging and discharging of the new energy battery, the new energy battery is safer in the charging and discharging processes, and the battery management is more comprehensive through cooperation of work management and charging and discharging management.
Description
Technical Field
The invention belongs to the technical field of new energy batteries, and particularly relates to a new energy battery management system.
Background
The new energy battery is suitable for pure new energy vehicles and can be classified into lead-acid batteries, nickel-based batteries (nickel-hydrogen and nickel-metal hydride batteries, nickel-metal-cobalt and nickel-zinc batteries), sodium β batteries (sodium-sulfur batteries and sodium-nickel chloride batteries), secondary lithium batteries, air batteries, and the like.
Because the new energy battery needs to be managed when in use, the abnormal safety accidents of the battery are avoided or the use of the battery is influenced, the traditional new energy battery management system generally manages the electric quantity, the temperature and the current and the voltage of the battery, but the storage electric quantity of the battery influences the stability of the output power of the battery, under the condition that the electric quantity is too low, the voltage output is small, the output power of the battery is reduced, and the service life of electric equipment is consumed when the electric equipment works under the unstable voltage, so the traditional new energy battery management system is not comprehensive enough in management and low in safety.
Disclosure of Invention
The invention aims to solve the problems that the management of the new energy battery management system is not comprehensive and not safe and stable enough, and provides the new energy battery management system which has the advantages of managing the work and the charging and discharging stability of a new energy battery, ensuring the output power at low electric quantity and avoiding damaging electric equipment.
The invention achieves the above object through the following technical scheme, a new energy battery management system, comprising:
the data acquisition unit is used for acquiring the working parameters of the new energy battery;
the regulating and controlling unit is used for managing and controlling the new energy battery in abnormal work;
the communication interface is used for communication transmission between the battery management system and the upper computer;
the charge and discharge management unit is used for managing the charge and discharge conditions of the new energy battery;
and the main control unit is used for coordinating the work of each unit.
Preferably, the data acquisition unit comprises a current acquisition module, a voltage acquisition module and a temperature acquisition module, and sends acquired current, voltage and temperature parameters to the main control unit.
Preferably, the regulation and control unit comprises a temperature control module, a voltage stabilizing module and an alarm module, the temperature control module is used for regulating and controlling the temperature abnormal condition in the new energy battery, the voltage stabilizing module is used for regulating and controlling the current and voltage abnormal condition of the new energy battery, and the alarm module is used for giving an alarm when the new energy battery is abnormal and cannot be regulated and controlled.
Preferably, the data acquisition unit and the regulation and control unit are installed in the new energy battery box, and the charge and discharge management unit is installed on a charge and discharge interface of the new energy battery.
Preferably, the charge and discharge management unit and the stand-by power supply, the SOC estimation unit electric connection has electric quantity detection module and voltage compensator, wherein the voltage compensator is connected with stand-by power supply's power supply end, and when electric quantity detection module detected that the electric quantity is less than normal work electric quantity, the voltage compensator can compensate new forms of energy battery power supply voltage.
Preferably, a relay is further installed inside the charge and discharge management unit, the relay is installed at a charge end of the new energy battery, and the voltage compensator is installed at a discharge end of the new energy battery.
Preferably, the SOC estimation unit is further connected to a charge/discharge compensation circuit for compensating charge/discharge and a self-discharge detection module for detecting whether the new energy battery is abnormal in self-discharge.
Compared with the prior art, the invention has the beneficial effects that:
1. the running state of the new energy battery is detected in real time through the data acquisition unit, if the running state is abnormal, the new energy battery is regulated and controlled through the regulation and control unit, the working stability of the new energy battery is guaranteed, the battery management system is further provided with a charging and discharging management unit to manage charging and discharging of the new energy battery, the new energy battery is safer in the charging and discharging processes, and the battery management is more comprehensive through cooperation of work management and charging and discharging management.
2. The standby power supply and the voltage compensator of the charging management unit compensate the power of the new energy battery in abnormal working electric quantity, so that the output power of the new energy battery is stable all the time, the safety of electric equipment is protected, and the service life of the new energy battery is prolonged.
Drawings
FIG. 1 is a schematic diagram of the overall system of the present invention.
Fig. 2 is a schematic diagram of a connection structure of internal modules of the charge and discharge management unit according to the present invention.
Fig. 3 is a flowchart illustrating a low battery management process of the new energy battery according to the present invention.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-2, a new energy battery management system includes:
the data acquisition unit is used for acquiring working parameters of the new energy battery, wherein the acquired parameters comprise current, voltage and temperature states of the new energy battery; the regulation and control unit is used for managing and controlling the new energy battery in abnormal working, and when the new energy battery is in abnormal state, the regulation and control unit can automatically regulate and control the new energy battery, so that the battery can be automatically regulated in time in abnormal working, and the running stability is maintained; the communication interface is used for communication transmission between the battery management system and an upper computer, the upper computer can be a vehicle-mounted center console, and the state parameters of the new energy battery can be checked through the upper computer; the charging and discharging management unit is used for managing the charging and discharging conditions of the new energy battery, the new energy battery mainly works in a discharging state, and electricity needs to be supplemented through charging when the electric quantity is insufficient, so that problems are easy to occur in the charging and discharging process, and the charging and discharging management unit can manage the charging and discharging power, so that the new energy battery can stably work; and the main control unit is used for coordinating the work of each unit and is a lower industrial personal computer.
The data acquisition unit comprises a current acquisition module, a voltage acquisition module and a temperature acquisition module, and sends acquired current, voltage and temperature parameters to the main control unit, the regulation and control unit comprises a temperature control module, a voltage stabilizing module and an alarm module, the temperature control module is used for regulating and controlling the temperature abnormal condition inside the new energy battery, the voltage stabilizing module is used for regulating and controlling the current and voltage abnormal condition of the new energy battery, the alarm module is used for alarming when abnormal regulation and control cannot be performed, the regulation and control unit works according to the data acquisition unit, and regulates abnormal parameters through the voltage stabilizing module when the current, voltage and temperature conditions of the new energy battery are acquired, and the temperature control module is used for temperature regulation when single or multiple parameters are in problem. The data acquisition unit and the regulation and control unit are installed in the new energy battery box, and the charge and discharge management unit is installed on a charge and discharge interface of the new energy battery.
The charging and discharging management unit and the standby power supply, the SOC estimation unit is electrically connected with an electric quantity detection module and a voltage compensator, the voltage compensator is connected with a power supply end of the standby power supply, when the electric quantity detection module detects that the electric quantity is lower than the normal working electric quantity, the voltage compensator can compensate the power supply voltage of the new energy battery, the standby power supply can compensate the power supply power of the new energy battery when the electric quantity of the new energy battery is too low, the damage of electric equipment due to unstable power supply is avoided, generally, the working electric quantity of the new energy battery is 15% -95%, once the working electric quantity exceeds the range, the electric core charge in the new energy battery is unstable, the output current and voltage are unstable, the current can be supplemented when the current is insufficient, the voltage is supplemented when the voltage is insufficient, a relay is further installed in the charging management unit, and the relay is installed at the charging end of, the voltage compensator is installed at the end that discharges of new forms of energy battery, and the relay is the switch of opening the new forms of energy battery and charging, only need open the relay when needing to charge, and the new forms of energy battery can charge, charge and discharge compensating circuit and self-discharge detection module are still connected to the SOC estimation unit, and charge and discharge compensating circuit is used for the compensation of charge and discharge, and this charge and discharge compensating circuit plays the effect of compensation steady power at the normal work electric quantity interval of new forms of energy battery, and self-discharge detection module is used for detecting whether the new forms of energy battery is unusual from discharging.
As shown in fig. 3, when the electric quantity is lower than the normal working value, the electric quantity condition is detected through the electric quantity detection module, if the battery is not used continuously, the charging pile is started through the access, the relay is started to charge, if the battery is still required to be used continuously, the voltage output by the new energy battery is compensated by the voltage compensator, so that the new energy battery outputs normal working voltage to the electric equipment, and the stability of the electric equipment is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A new energy battery management system, comprising:
the data acquisition unit is used for acquiring the working parameters of the new energy battery;
the regulating and controlling unit is used for managing and controlling the new energy battery in abnormal work;
the communication interface is used for communication transmission between the battery management system and the upper computer;
the charge and discharge management unit is used for managing the charge and discharge conditions of the new energy battery;
and the main control unit is used for coordinating the work of each unit.
2. The new energy battery management system according to claim 1, wherein the data acquisition unit comprises a current acquisition module, a voltage acquisition module and a temperature acquisition module, and sends the acquired current, voltage and temperature parameters to the main control unit.
3. The new energy battery management system according to claim 1, wherein the control unit comprises a temperature control module, a voltage regulation module and an alarm module, the temperature control module is used for controlling the temperature abnormal condition inside the new energy battery, the voltage regulation module is used for controlling the current and voltage abnormal condition of the new energy battery, and the alarm module is used for giving an alarm when the abnormality cannot be controlled.
4. The new energy battery management system according to claim 1, wherein the data acquisition unit and the regulation and control unit are installed inside a new energy battery box, and the charge and discharge management unit is installed on a charge and discharge interface of the new energy battery.
5. The new energy battery management system according to claim 1, wherein the charging and discharging management unit and the backup power supply, the SOC estimation unit is electrically connected to a power detection module and a voltage compensator, wherein the voltage compensator is connected to a power supply terminal of the backup power supply, and when the power detection module detects that the power is lower than the normal operation power, the voltage compensator can compensate the power supply voltage of the new energy battery.
6. The new energy battery management system according to claim 5, wherein a relay is further installed inside the charge and discharge management unit, the relay is installed at a charge end of the new energy battery, and the voltage compensator is installed at a discharge end of the new energy battery.
7. The new energy battery management system according to claim 5, wherein the SOC estimation unit is further connected with a charge-discharge compensation circuit and a self-discharge detection module, the charge-discharge compensation circuit is used for compensating charge and discharge, and the self-discharge detection module is used for detecting whether the new energy battery is abnormal in self-discharge.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010399466.9A CN111509809A (en) | 2020-05-12 | 2020-05-12 | New energy battery management system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010399466.9A CN111509809A (en) | 2020-05-12 | 2020-05-12 | New energy battery management system |
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| CN111509809A true CN111509809A (en) | 2020-08-07 |
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| CN202010399466.9A Pending CN111509809A (en) | 2020-05-12 | 2020-05-12 | New energy battery management system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198947A (en) * | 2014-09-02 | 2014-12-10 | 奇瑞汽车股份有限公司 | System and method for estimating surplus capacity of lithium ion battery |
| CN206171232U (en) * | 2016-11-24 | 2017-05-17 | 河北工业大学 | Electric automobile energy management device |
| CN208682659U (en) * | 2018-04-12 | 2019-04-02 | 成都航博新能科技有限公司 | A kind of battery management system of new-energy automobile |
| CN111002830A (en) * | 2019-12-19 | 2020-04-14 | 吉林建筑大学 | Power battery management system and method based on flexible heat pipe |
-
2020
- 2020-05-12 CN CN202010399466.9A patent/CN111509809A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198947A (en) * | 2014-09-02 | 2014-12-10 | 奇瑞汽车股份有限公司 | System and method for estimating surplus capacity of lithium ion battery |
| CN206171232U (en) * | 2016-11-24 | 2017-05-17 | 河北工业大学 | Electric automobile energy management device |
| CN208682659U (en) * | 2018-04-12 | 2019-04-02 | 成都航博新能科技有限公司 | A kind of battery management system of new-energy automobile |
| CN111002830A (en) * | 2019-12-19 | 2020-04-14 | 吉林建筑大学 | Power battery management system and method based on flexible heat pipe |
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