CN109217426A - Battery management system, method for communication base station - Google Patents
Battery management system, method for communication base station Download PDFInfo
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- CN109217426A CN109217426A CN201811210215.0A CN201811210215A CN109217426A CN 109217426 A CN109217426 A CN 109217426A CN 201811210215 A CN201811210215 A CN 201811210215A CN 109217426 A CN109217426 A CN 109217426A
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- power source
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- source charges
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- 238000004891 communication Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title description 7
- 238000007726 management method Methods 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims description 13
- 230000002265 prevention Effects 0.000 description 4
- 230000001012 protector Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H02J7/0077—
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- H02J7/0091—
Abstract
A kind of battery management method, comprising: detect the charging access of power battery pack；It is communicated between BMS control unit and power source charges unit, charging current, or first charge closing electric current is reduced by power source charges unit, then be gradually increased charging current.The present invention also provides a kind of battery management systems and a kind of battery management system for communication base station.For the present invention by the way of BMS and power-supply device communication, when charging is opened, communication modes reduce electric current, or close electric current, to avoid impact MOS, can also close charge and discharge in time when product breaks down, make system safety.
Description
Technical field
System of the present invention belongs to field of batteries, and in particular to a kind of battery management system for communication base station, method.
Background technique
With the international fast development with home communications power technology, the especially development of 4G+, 5G business in recent years, fortune
Quotient is sought for the power supply power supply mode increasingly diversity of base station, and to charge and discharge ability to accept, reliability, the intelligence with battery
Energyization requirement is also higher and higher, and the battery pack BT of part web construction initial stage configuration is no longer satisfied standby electricity and requires, especially
The power grids such as western part, mountain area are undeveloped, area of frequent natural calamity, it is desirable that realize in 1h~3h that battery pack BT is fully charged.
In this case it is necessary to configure the higher battery management system of ability to accept to guarantee that the fast quick-recovery of communication base station and electric power is standby
Electricity.But this also just inevitably will appear the problem of limited battery management system current limiting capacity, poor reliability.
Battery pack is mainly made of battery core and battery intelligent management BMS protection board, uses MOS as charge and discharge in BMS protection board
Electric switch, and MOS loss is divided into conduction loss and switching loss, instantaneous large-current causes MOS momentary loss very big, can be in charge and discharge
Bombing is caused to act before electric overcurrent protection delay, while to the heavy current impact of battery core, it is also possible to deterioration of battery is caused, or
Damage.It is therefore desirable to have charging current limiter plate.
Charging current limiter plate control method includes: to detect charging access, starts charging current limiter plate at once, turns off charging MOS,
The disadvantage is that detect charging access, and BMS sampled current value, if charging current arrives at charging overcurrent value, starting overcurrent delay (ratio
It is larger, for example, 1000mS) protection, if arrive at charging short circuit current protection value to charging current, the short-circuit delay (ratio of starting charging
It is smaller, such as 200uS) protection.If just current value is between overcurrent threshold and short-circuit threshold, the delay of overcurrent protection at this time is opened
It is dynamic, but since the time is longer, before overcurrent protection, MOS high power consumption causes bombing.
Existing charging uses charging current limiter trigger system, can completely avoid since Switching Power Supply constant flow regulation inertia generates
, heavy current impact.But now due to inexpensive echelon battery cancellation current limiting plate, thus fully relies on BMS (battery management
System) itself resist dash current.Since MOS impact resistance is limited, MOS is easily caused to puncture in this way, to make battery
Protection is lost, safety problem is caused.
Summary of the invention
The purpose of the present invention is to provide a kind of battery management systems for communication base station, method, and battery can be improved
Protective value, avoid to MOS puncture.
An embodiment according to the present invention, provides a kind of battery management method, comprising:
Detect the charging access of power battery pack；
It is communicated between BMS control unit and power source charges unit, charging current is reduced by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
Preferably, in above-mentioned battery management method, the communication mode includes RS485, CAN or dry contact.
Preferably, in above-mentioned battery management method, the fault message of power battery pack is detected, is generating fault-signal
When,
It is communicated between BMS control unit and power source charges unit, passes through power source charges unit charge closing electric current.
Preferably, in above-mentioned battery management method, BMS control unit is not integrated or is connected with current limiting plate.
An embodiment according to the present invention, provides a kind of battery management system, comprising:
Power source charges unit, the chargeable connection between power battery pack；
First detection unit detects the charging access of power battery pack；
BMS control unit communicates between power source charges unit, and reduces charging current by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
Preferably, in above-mentioned battery management system, the communication mode includes RS485, CAN or dry contact.
Preferably, in above-mentioned battery management system, further includes:
Second detection unit detects the fault message of power battery pack, when generating fault-signal, BMS control unit with
It is communicated between power source charges unit, passes through power source charges unit charge closing electric current.
Preferably, in above-mentioned battery management system, BMS control unit is not integrated or is connected with current limiting plate.
An embodiment according to the present invention provides a kind of battery management system for communication base station, comprising:
Power source charges unit, the chargeable connection between power battery pack；
First detection unit detects the charging access of power battery pack；
BMS control unit communicates between power source charges unit, and reduces charging current by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
Preferably, in the above-mentioned battery management system for communication base station, power battery pack output voltage is 48V.
The present invention through the foregoing embodiment, can have effects that following:
The present invention is by the way of BMS and power-supply device communication, and when charging is opened, communication modes reduce electric current, Huo Zheguan
Electric current is closed, to avoid impact MOS, charge and discharge can also be closed in time when product breaks down, keeps system safe.
Detailed description of the invention
Above general introduction and next detailed description and attached drawing is all in order to further illustrate that the present invention is pre- to reach
Determine mode, means and effect that purpose is taken.And other purposes for the present invention and advantage, it will be in subsequent explanation and figure
It is illustrated in formula.
The flow diagram of battery management method in Fig. 1 system one specific embodiment of the present invention.
Specific embodiment
Hereinafter, the present invention will be described in detail with reference to various embodiments shown in the accompanying drawings.But the embodiments such as this are not
The limitation present invention, structure that those skilled in the art are made according to the embodiments such as this, method or change functionally
It changes and is included within the scope of protection of the present invention.
In certain specific embodiments of the invention, battery pack includes several battery units being serially connected, other
In embodiment, several battery units can be divided into several battery modules, the battery unit that different battery modules includes
Quantity can be identical, can not also be identical.
As shown in connection with fig. 1, in one embodiment, a kind of battery management method is disclosed, comprising:
The charging for detecting power battery pack accesses (whether equipment, which needs, is charged)；
If charging access, battery need to protect, then communicate between BMS control unit and power source charges unit, pass through electricity
Source charhing unit reduces charging current, or
First charge closing electric current, then it is gradually increased charging current.
In one embodiment, further include whether detection power battery pack discharges.If battery needs to protect
Shield, then communicate between BMS control unit and power source charges unit, closes discharge current, or first close discharge current, then gradually increase
Big discharge current.
It in one embodiment, further include whether in safe range judging charging and discharging currents, when not in safe range
It when interior, is communicated between BMS control unit and power source charges unit, the size for adjusting electric current makes it within safe range.
In one embodiment, it can be analyzed and determined and be decided whether by the detection parameters to battery pack
Protection is opened, such as overcharges protection, Cross prevention, short-circuit protection, overheat protector.Such as: the voltage parameter of acquisition and one is pre-
Determine threshold range to be compared, if the voltage value measured exceeds the upper limit of the predetermined threshold range, unlatching overcharges protection；Such as
The voltage value that fruit measures is less than the lower limit of the predetermined threshold range, then opens Cross prevention.It in other embodiments, can also be with
The current parameters of acquisition are compared with a predetermined threshold, if the electric current measured is excessive, open short-circuit protection；Similarly,
For the temperature parameter of acquisition, also can threshold value comparison corresponding with one, if temperature it is excessively high exceed the threshold value, need to open
Temperature protection.
Then it if battery pack is judged as being protected, opens and corresponding overcharge protection, and/or over-discharge and protect
Shield, and/or short-circuit protection, and/or overheat protector.It can be the company that disconnects external charger and battery pack specific in circuit
It connects, and/or disconnects the connection of battery pack and power load.
In one embodiment, communication mode includes RS485, CAN or dry contact.
In one embodiment, further includes: the fault message for detecting power battery pack, when generating fault-signal,
It is communicated between BMS control unit and power source charges unit, passes through power source charges unit charge closing electric current.
In the technical solution, fault message includes being not limited to that cell voltage is too high or too low, pressure difference changes too fast, voltage
Jump, battery temperature is excessively high, difference variation is abnormal, charge and discharge electrical anomaly etc..
In one embodiment, BMS control unit is not integrated or is connected with current limiting plate.
A kind of battery management system is also disclosed in the embodiment of the present application, comprising:
Power source charges unit, the chargeable connection between power battery pack；
First detection unit detects the charging access of power battery pack；
BMS control unit communicates between power source charges unit, and reduces charging current by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
In one embodiment, further include whether detection power battery pack discharges.If battery needs to protect
Shield, then communicate between BMS control unit and power source charges unit, closes discharge current, or first close discharge current, then gradually increase
Big discharge current.
It in one embodiment, further include whether in safe range judging charging and discharging currents, when not in safe range
It when interior, is communicated between BMS control unit and power source charges unit, the size for adjusting electric current makes it within safe range.
In one embodiment, it can be analyzed and determined and be decided whether by the detection parameters to battery pack
Protection is opened, such as overcharges protection, Cross prevention, short-circuit protection, overheat protector.Such as: the voltage parameter of acquisition and one is pre-
Determine threshold range to be compared, if the voltage value measured exceeds the upper limit of the predetermined threshold range, unlatching overcharges protection；Such as
The voltage value that fruit measures is less than the lower limit of the predetermined threshold range, then opens Cross prevention.It in other embodiments, can also be with
The current parameters of acquisition are compared with a predetermined threshold, if the electric current measured is excessive, open short-circuit protection；Similarly,
For the temperature parameter of acquisition, also can threshold value comparison corresponding with one, if temperature it is excessively high exceed the threshold value, need to open
Temperature protection.
Then it if battery pack is judged as being protected, opens and corresponding overcharge protection, and/or over-discharge and protect
Shield, and/or short-circuit protection, and/or overheat protector.It can be the company that disconnects external charger and battery pack specific in circuit
It connects, and/or disconnects the connection of battery pack and power load.
In one embodiment, the communication mode includes RS485, CAN or dry contact.
In one embodiment, further includes:
Second detection unit detects the fault message of power battery pack, when generating fault-signal, BMS control unit with
It is communicated between power source charges unit, passes through power source charges unit charge closing electric current.
In one embodiment, BMS control unit is not integrated or is connected with current limiting plate.
As is well known in the art, BMS control unit may include microprocessor (MCU), which can be with
Including central processing unit (Central Processing Unit, CPU), read-only memory module (read-only memory,
ROM), random storage module (random access memory, RAM), timing module, digital-to-analogue conversion module (A/D
) and plural input/output port converter.Certainly, the integrated circuit that BMS control unit can also take other form,
Such as: application-specific IC (Application Specific Integrated Circuit, ASIC) or scene can programs
Change gate array (Field Programmable Gate Array, FPGA) etc..
The embodiment of the present application also discloses a kind of battery management system for communication base station, comprising:
Power source charges unit, the chargeable connection between power battery pack；
First detection unit detects the charging access of power battery pack；
BMS control unit communicates between power source charges unit, and reduces charging current by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
In one embodiment, power battery pack output voltage is 48V.
The present invention is by the way of BMS and power-supply device communication, and when charging is opened, communication modes reduce electric current, Huo Zheguan
Electric current is closed, to avoid impact MOS, charge and discharge can also be closed in time when product breaks down, keeps system safe.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Although not each embodiment only includes one in addition, it should be understood that this specification is described according to embodiment
A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say
As a whole, the technical solutions in the various embodiments may also be suitably combined for bright book, and forming those skilled in the art can be with
The other embodiments of understanding.
Claims (10)
1. a kind of battery management method, characterized by comprising:
Detect the charging access of power battery pack；
It is communicated between BMS control unit and power source charges unit, charging current is reduced by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
2. battery management method according to claim 1, which is characterized in that the communication mode include RS485, CAN or
Dry contact.
3. battery management method according to claim 1, which is characterized in that the fault message for detecting power battery pack,
When generating fault-signal,
It is communicated between BMS control unit and power source charges unit, passes through power source charges unit charge closing electric current.
4. battery management method according to claim 1, which is characterized in that BMS control unit is not integrated or connects limited
Flowing plate.
5. a kind of battery management system, characterized by comprising:
Power source charges unit, the chargeable connection between power battery pack；
First detection unit detects the charging access of power battery pack；
BMS control unit communicates between power source charges unit, and reduces charging current by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
6. battery management system according to claim 5, which is characterized in that the communication mode include RS485, CAN or
Dry contact.
7. battery management system according to claim 5, which is characterized in that further include:
Second detection unit detects the fault message of power battery pack, when generating fault-signal, BMS control unit and power supply
It is communicated between charhing unit, passes through power source charges unit charge closing electric current.
8. battery management system according to claim 5, which is characterized in that BMS control unit is not integrated or connects limited
Flowing plate.
9. a kind of battery management system for communication base station, characterized by comprising:
Power source charges unit, the chargeable connection between power battery pack；
First detection unit detects the charging access of power battery pack；
BMS control unit communicates between power source charges unit, and reduces charging current by power source charges unit, or
First charge closing electric current, then it is gradually increased charging current.
10. the battery management system according to claim 9 for communication base station, which is characterized in that power battery pack is defeated
Voltage is 48V out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210215.0A CN109217426A (en) | 2018-10-17 | 2018-10-17 | Battery management system, method for communication base station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811210215.0A CN109217426A (en) | 2018-10-17 | 2018-10-17 | Battery management system, method for communication base station |
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| CN109217426A true CN109217426A (en) | 2019-01-15 |
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| CN201811210215.0A Pending CN109217426A (en) | 2018-10-17 | 2018-10-17 | Battery management system, method for communication base station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115285266A (en) * | 2022-07-29 | 2022-11-04 | 湖南丰源业翔晶科新能源股份有限公司 | Battery system intelligent parallel system for two-wheel vehicle, control method and two-wheel vehicle |
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2018
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|---|---|---|---|---|
| CN101026252A (en) * | 2007-02-09 | 2007-08-29 | 邹红钢 | Charging method and circuit for chargeable battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115285266A (en) * | 2022-07-29 | 2022-11-04 | 湖南丰源业翔晶科新能源股份有限公司 | Battery system intelligent parallel system for two-wheel vehicle, control method and two-wheel vehicle |
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