CN107706964A - A kind of battery pack parallel operation method - Google Patents
A kind of battery pack parallel operation method Download PDFInfo
- Publication number
- CN107706964A CN107706964A CN201710799992.2A CN201710799992A CN107706964A CN 107706964 A CN107706964 A CN 107706964A CN 201710799992 A CN201710799992 A CN 201710799992A CN 107706964 A CN107706964 A CN 107706964A
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- China
- Prior art keywords
- oxide
- metal
- semiconductor
- charging
- battery
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Classifications
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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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
-
- 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
Abstract
The invention provides a kind of battery pack parallel operation method, including battery pack charge step, before charging process, all charging metal-oxide-semiconductors are in opening, all electric discharge metal-oxide-semiconductors are closed, and all battery modules are all together in parallel by the diode in the charging direction allowed inside the metal-oxide-semiconductor that discharges；When starting to charge up, charging current initially enters the minimum battery modules of voltage；After charging complete, charging metal-oxide-semiconductor is in opening, and electric discharge metal-oxide-semiconductor is closed, identical with the original state of the charging metal-oxide-semiconductor required for charge battery step and the metal-oxide-semiconductor that discharges.The present invention is not on the basis of overcharging and only putting, by controlling charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor method for opening and closing to solve the problems, such as that multiple battery modules are parallel with one another and can cause mutual discharge and recharge, the even parallel connection of the battery modules of different type voltage grade completely.
Description
Technical field
The present invention relates to a kind of battery pack parallel operation method, particularly a kind of battery pack suitable for complete alternation discharge and recharge
Parallel operation method.
Background technology
With flourishing for electronic technology, medium-sized, large-sized battery pack dosage is increasing.And in these battery packs
Production, test are with that during use, will use many charging and discharging processes.
Existing charging equipment or discharge equipment have the following disadvantages：
1st, battery pack needs to use the battery modules of same model to carry out used in parallel, i.e., battery pack in parallel requires each battery
Voltage is identical, it is impossible to which complete different type, the battery modules of voltage class are carried out into input and output in parallel.Because in battery pack
In, what the difference between monomer was constantly present, by taking capacity as an example, its otherness never tends to disappear, but progressively deteriorate.
Same electric current is flowed through in battery pack, comparatively, the big person of capacity is always at shallow fill of low current and shallow put, tends to capacity attenuation and delay
Slowly, life, and the small person of capacity be always at high current super-charge super-discharge, tend to capacity attenuation accelerate, the lost of life, both it
Between performance parameter differences it is increasing, formed positive feedback characteristic, low capacity premature failure, organize the lost of life.
2nd, the discharge and recharge step of battery pack is unable to reach the function of complete alternation so that the using trouble of battery pack.
The content of the invention
It is easy to operation the technical problem to be solved in the present invention is to provide a kind of simple and easy, it is highly reliable, it is easy to implement
The battery pack parallel operation method of different battery pack complete alternation discharge and recharges.
The technical solution adopted by the present invention is as follows：A kind of battery pack parallel operation method, including battery pack charge step；Institute
The battery pack stated includes multiple battery modules in parallel, described battery modules include the charging metal-oxide-semiconductor of series connection, electric discharge metal-oxide-semiconductor,
Current detection module and battery, in addition to the control mould being connected with charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module and battery
Block；
Described battery pack charge step includes following sub-step：
S21：Before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors, which are in, closes shape
State, all battery modules are all together in parallel by the diode in the charging direction allowed inside the metal-oxide-semiconductor that discharges；
S22：Start to charge up, charging current initially enters the minimum battery modules of voltage；Control module is to passing through current detecting mould
The electric current of block is sampled, and also the voltage of battery is sampled：
（1）When control module detects the charging current by current detection module, electric discharge metal-oxide-semiconductor is placed in out by control module
State is opened, will battery modules addition charging sequence in parallel；Until all electric discharge metal-oxide-semiconductors are in opening, realize
All battery modules in parallel chargings；
（2）When control module detects that the voltage of battery reaches overcharge thresholding, charging metal-oxide-semiconductor is placed in closing shape by control module
State；Until all charging metal-oxide-semiconductors are closed, represent that all battery modules bulk charges are completed；
After charging complete, charging metal-oxide-semiconductor is in opening, and electric discharge metal-oxide-semiconductor is closed, with charge battery step institute
The charging metal-oxide-semiconductor needed is identical with the original state for the metal-oxide-semiconductor that discharges.
Also include battery power discharge step, specifically include following sub-step：
S11：Before discharge process, all charging metal-oxide-semiconductors are closed, and all electric discharge metal-oxide-semiconductors are in opening state
State, all battery modules pass through the diodes in parallel of the course of discharge allowed inside the metal-oxide-semiconductor that charges；
S12：Start to discharge, voltage highest battery modules are discharged at first；Control module is to by current detection module
Electric current is sampled, and also the voltage of battery is sampled：
（1）When control module detects the discharge current by current detection module, charging metal-oxide-semiconductor is placed in out by control module
State is opened, will battery modules addition electric discharge sequence in parallel；Until all charging metal-oxide-semiconductors are in opening, realize
All battery modules in parallel electric discharges；
（2）When control module detects that the voltage of battery reaches overdischarge thresholding, electric discharge metal-oxide-semiconductor is placed in closing shape by control module
State；Until all electric discharge metal-oxide-semiconductors are closed, represent that all battery modules are discharged completion.
Methods described also includes, and after the completion of electric discharge, electric discharge metal-oxide-semiconductor is in opening, and charging metal-oxide-semiconductor, which is in, closes shape
State is identical with the original state of the charging metal-oxide-semiconductor required for battery discharge step and the metal-oxide-semiconductor that discharges.
Described current detection module includes a current sense resistor RSC.
Described battery modules are identical or different type voltage class battery modules.
Compared with prior art, the beneficial effects of the invention are as follows：
（1）The present invention passes through on the basis of not overcharging and only putting and controls charging metal-oxide-semiconductor and electric discharge metal-oxide-semiconductor method for opening and closing to solve
Multiple battery modules the problem of causing mutual discharge and recharge parallel with one another, the even electricity of different type voltage grade completely
The parallel connection of pond module.
（2）The present invention is conveniently used for real now all of battery modules in a bus bar circuit in parallel, output
In the case of having positive and negative both threads, the total recycle process of charge and discharge can be achieved in each battery modules：It is complete in charge step
The open and-shut mode of charging metal-oxide-semiconductor and the metal-oxide-semiconductor that discharges after is identical with the original state of discharge step, similarly complete in discharge step
The open and-shut mode of charging metal-oxide-semiconductor and the metal-oxide-semiconductor that discharges after is identical with the original state of charge step.
（3）The present invention is simple and easy, easy to operation, highly reliable.
Brief description of the drawings
Fig. 1 is the method flow diagram that the present invention is applied to complete alternation discharge and recharge；
Fig. 2 is battery pack structure block diagram；
Fig. 3 is battery modules circuit diagram；
Fig. 4 completes equivalent circuit diagram for electric discharge；
Fig. 5 is charging complete equivalent circuit diagram.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
This specification（Including summary and accompanying drawing）Disclosed in any feature, unless specifically stated otherwise, can be equivalent by other
Or the alternative features with similar purpose are replaced.I.e., unless specifically stated otherwise, each feature is a series of equivalent or class
Like an example in feature.
Technical scheme is described in further detail below in conjunction with the accompanying drawings：
Specific embodiment 1
A kind of battery pack parallel operation method, including battery pack charge step；As shown in Fig. 2 described battery pack is including multiple
Battery modules in parallel, as shown in figure 3, described battery modules include the charging metal-oxide-semiconductor of series connection, electric discharge metal-oxide-semiconductor, current detecting
Module and battery, in addition to the control module being connected with charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module and battery；
Described battery pack charge step includes following sub-step：
S21：Before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors, which are in, closes shape
State, all battery modules are all together in parallel by the diode in the charging direction allowed inside the metal-oxide-semiconductor that discharges；
S22：Start to charge up, charging current initially enters the minimum battery modules of voltage；Control module is to passing through current detecting mould
The electric current of block is sampled, and also the voltage of battery is sampled：
（1）When control module detects the charging current by current detection module, electric discharge metal-oxide-semiconductor is placed in out by control module
State is opened, will battery modules addition charging sequence in parallel；Until all electric discharge metal-oxide-semiconductors are in opening, realize
All battery modules in parallel chargings；
（2）When control module detects that the voltage of battery reaches overcharge thresholding, charging metal-oxide-semiconductor is placed in closing shape by control module
State；Until all charging metal-oxide-semiconductors are closed, represent that all battery modules bulk charges are completed；Equivalent circuit diagram is such as
Shown in Fig. 5.
After charging complete, charging metal-oxide-semiconductor is in opening, and electric discharge metal-oxide-semiconductor is closed, charges and walk with battery
Charging metal-oxide-semiconductor required for rapid is identical with the original state for the metal-oxide-semiconductor that discharges.
Specific embodiment 2
On the basis of specific embodiment 1, in addition to battery power discharge step, specifically include following sub-step：
S11：Before discharge process, all charging metal-oxide-semiconductors are closed, and all electric discharge metal-oxide-semiconductors are in opening state
State, all battery modules pass through the diodes in parallel of the course of discharge allowed inside the metal-oxide-semiconductor that charges；
S12：Start to discharge, voltage highest battery modules are discharged at first；Control module is to by current detection module
Electric current is sampled, and also the voltage of battery is sampled：
（1）When control module detects the discharge current by current detection module, charging metal-oxide-semiconductor is placed in out by control module
State is opened, will battery modules addition electric discharge sequence in parallel；Until all charging metal-oxide-semiconductors are in opening, realize
All battery modules in parallel electric discharges；
（2）When control module detects that the voltage of battery reaches overdischarge thresholding, electric discharge metal-oxide-semiconductor is placed in closing shape by control module
State；Until all electric discharge metal-oxide-semiconductors are closed, represent that all battery modules are discharged completion, equivalent circuit diagram is such as
Shown in Fig. 4.
Therefore discharge and recharge complete alternation can be realized, as shown in Figure 1.
Specific embodiment 3
On the basis of specific embodiment 2, methods described also includes, and after the completion of electric discharge, electric discharge metal-oxide-semiconductor is in opening,
Charging metal-oxide-semiconductor is closed, the original state phase with the charging metal-oxide-semiconductor required for battery discharge step and the metal-oxide-semiconductor that discharges
Together.
Specific embodiment 4
On the basis of one of specific embodiment 1 to 3, described current detection module includes a current sense resistor RSC.
Specific embodiment 5
On the basis of one of specific embodiment 1 to 4, described battery modules are identical or different type voltage class electricity
Pond module.
Claims (3)
- A kind of 1. battery pack parallel operation method, it is characterised in that：Including battery pack charge step；Described battery pack includes more Individual battery modules in parallel, described battery modules include the charging metal-oxide-semiconductor of series connection, electric discharge metal-oxide-semiconductor, current detection module and electricity Pond, in addition to the control module being connected with charging metal-oxide-semiconductor, electric discharge metal-oxide-semiconductor, current detection module and battery；Described battery pack charge step includes following sub-step：S21：Before charging process, all charging metal-oxide-semiconductors are in opening, and all electric discharge metal-oxide-semiconductors, which are in, closes shape State, all battery modules are all together in parallel by the diode in the charging direction allowed inside the metal-oxide-semiconductor that discharges；S22：Start to charge up, charging current initially enters the minimum battery modules of voltage；Control module is to passing through current detecting mould The electric current of block is sampled, and also the voltage of battery is sampled：（1）When control module detects the charging current by current detection module, electric discharge metal-oxide-semiconductor is placed in out by control module State is opened, will battery modules addition charging sequence in parallel；Until all electric discharge metal-oxide-semiconductors are in opening, realize All battery modules in parallel chargings；（2）When control module detects that the voltage of battery reaches overcharge thresholding, charging metal-oxide-semiconductor is placed in closing shape by control module State；Until all charging metal-oxide-semiconductors are closed, represent that all battery modules bulk charges are completed；After charging complete, charging metal-oxide-semiconductor is in opening, and electric discharge metal-oxide-semiconductor is closed, with charge battery step institute The charging metal-oxide-semiconductor needed is identical with the original state for the metal-oxide-semiconductor that discharges.
- A kind of 2. battery pack parallel operation method according to claim 1, it is characterised in that：Described current detection module Including a current sense resistor RSC.
- A kind of 3. battery pack parallel operation method according to claim 1, it is characterised in that：Described battery modules are phase Same or different type voltage class battery modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710799992.2A CN107706964A (en) | 2015-08-03 | 2015-08-03 | A kind of battery pack parallel operation method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510481190.8A CN105048572B (en) | 2015-08-03 | 2015-08-03 | A kind of method for realizing different battery pack complete alternation discharge and recharges |
| CN201710799992.2A CN107706964A (en) | 2015-08-03 | 2015-08-03 | A kind of battery pack parallel operation method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201510481190.8A Division CN105048572B (en) | 2015-08-03 | 2015-08-03 | A kind of method for realizing different battery pack complete alternation discharge and recharges |
Publications (1)
| Publication Number | Publication Date |
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| CN107706964A true CN107706964A (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510481190.8A Active CN105048572B (en) | 2015-08-03 | 2015-08-03 | A kind of method for realizing different battery pack complete alternation discharge and recharges |
| CN201710799992.2A Withdrawn CN107706964A (en) | 2015-08-03 | 2015-08-03 | A kind of battery pack parallel operation method |
| CN201710800003.7A Pending CN107492931A (en) | 2015-08-03 | 2015-08-03 | A kind of battery pack parallel operation method |
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| CN201510481190.8A Active CN105048572B (en) | 2015-08-03 | 2015-08-03 | A kind of method for realizing different battery pack complete alternation discharge and recharges |
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| CN201710800003.7A Pending CN107492931A (en) | 2015-08-03 | 2015-08-03 | A kind of battery pack parallel operation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354992A (en) * | 2020-04-01 | 2020-06-30 | 深圳市超力源科技有限公司 | Low-cost secondary lithium battery parallel use method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761149A (en) * | 2011-04-29 | 2012-10-31 | 新普科技股份有限公司 | Battery balancing circuit and method and battery module activation method |
| CN104247198A (en) * | 2013-03-29 | 2014-12-24 | 三洋电机株式会社 | Power supply system and charging and discharging control method for power supply system |
| WO2015112178A2 (en) * | 2014-01-27 | 2015-07-30 | Hewlett-Packard Development Company, L.P. | Voltage regulation for battery strings |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09140065A (en) * | 1995-11-10 | 1997-05-27 | Sony Corp | Secondary battery for parallel use |
| JP3848574B2 (en) * | 2001-02-20 | 2006-11-22 | セイコーインスツル株式会社 | Charge / discharge control device |
| KR101076953B1 (en) * | 2003-10-27 | 2011-10-26 | 소니 주식회사 | Battery pack |
| CN102694397A (en) * | 2011-03-22 | 2012-09-26 | 飞毛腿(福建)电子有限公司 | Control method of battery output parallel connection |
| JP2014003759A (en) * | 2012-06-15 | 2014-01-09 | Toyota Motor Corp | Power source control device |
| JP6026226B2 (en) * | 2012-10-30 | 2016-11-16 | 株式会社日立情報通信エンジニアリング | Power storage system and power supply system |
| CN204179729U (en) * | 2014-11-25 | 2015-02-25 | 中航锂电（洛阳）有限公司 | A kind of communication discrete lithium battery back-up source |
-
2015
- 2015-08-03 CN CN201510481190.8A patent/CN105048572B/en active Active
- 2015-08-03 CN CN201710799992.2A patent/CN107706964A/en not_active Withdrawn
- 2015-08-03 CN CN201710800003.7A patent/CN107492931A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761149A (en) * | 2011-04-29 | 2012-10-31 | 新普科技股份有限公司 | Battery balancing circuit and method and battery module activation method |
| CN104247198A (en) * | 2013-03-29 | 2014-12-24 | 三洋电机株式会社 | Power supply system and charging and discharging control method for power supply system |
| WO2015112178A2 (en) * | 2014-01-27 | 2015-07-30 | Hewlett-Packard Development Company, L.P. | Voltage regulation for battery strings |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354992A (en) * | 2020-04-01 | 2020-06-30 | 深圳市超力源科技有限公司 | Low-cost secondary lithium battery parallel use method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107492931A (en) | 2017-12-19 |
| CN105048572B (en) | 2017-12-01 |
| CN105048572A (en) | 2015-11-11 |
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Application publication date: 20180216 |