CN108011525A - DC-DC control circuits in battery equalization system - Google Patents
DC-DC control circuits in battery equalization system Download PDFInfo
- Publication number
- CN108011525A CN108011525A CN201711341289.3A CN201711341289A CN108011525A CN 108011525 A CN108011525 A CN 108011525A CN 201711341289 A CN201711341289 A CN 201711341289A CN 108011525 A CN108011525 A CN 108011525A
- Authority
- CN
- China
- Prior art keywords
- control
- circuit
- monocell
- battery
- feedback
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells 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
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses the DC DC control circuits in battery equalization system, monocell obtains the magnitude of voltage of an actual output voltage size to produce control signal after feedback circuit, control signal controls the on and off of DC DC converters into trigger controlling switch pipe, realizes forward direction DC D/C voltages in battery equalization system and compensates；Bluetooth control module can parameters in remote control feedback circuit at any time.By the present invention, the feedback and compensation efficiency of the DC DC control circuits in battery equalization system are improved, and the parameters of feedback circuit and control circuit can be optimized accordingly by Bluetooth control module according to different situations.
Description
Technical field
The present invention relates to battery equalization system, and in particular to the DC-DC control circuits in battery equalization system.
Background technology
In battery management system, often will use it is battery balanced, balancing technique be the current world endeavouring research with
The important technology of one battery management system (bms) of exploitation, the analysis found that, if battery long-term work in overcharge or
In the case of person's overdischarge, large effect can be caused to battery, the capacity of battery can be caused to decline.With battery access times
Increase, its capacity can also diminish therewith.Moreover, the degree of volume change differs, even the battery of same brand use it is identical
Time after, its volume change situation is also not quite similar.Battery pack is formed since electric automobile needs multiple batteries to be together in series
To power, in general, one battery module of several battery compositions, several battery modules are together in series again forms battery
Bag.In use for some time, the capacity of each battery has different degrees of decline, in this way, just causing in battery module
Imbalance between portion and battery module.The whole volume of battery pack is limited be subject to single " short slab " battery, utilization rate
It is greatly reduced.The mileage number that new-energy automobile charges every time can also greatly shorten.Exactly in this context, battery management
The equalization scheme of system and battery is suggested.
In battery equalization system, positive DC-DC control circuits are widely used, it is used for the voltage compensation of battery pack
To monocell.But in current positive DC-DC control circuits, feedback and compensation efficiency be not good enough, cause electricity when temperature changes
During the Parameters variation of pond, the more difficult modulation of electric signal of feedback circuit.Therefore, feedback and compensation efficiency how to be improved, is easily modulated
The electric signal of feedback circuit, is a research topic being of great significance.
The content of the invention
Present invention aims in the current positive DC-DC control circuits of solution, feedback and compensation efficiency be not good enough, and feedback is electric
The problem of electric signal on road more difficult modulation.In view of the above-mentioned problems, the present invention provides the DC-DC in battery equalization system to control electricity
Road, its application can improve feedback and compensation efficiency, the electric signal for easily modulating feedback circuit.
The purpose of the present invention is achieved through the following technical solutions：
DC-DC control circuits in battery equalization system, including battery pack, dc-dc, monocell, feedback circuit,
Control circuit, Bluetooth control module, the control circuit include trigger, switching tube；The primary coil of the dc-dc
It is connected with the both ends of battery pack, its secondary coil is connected with monocell both ends, for by the voltage compensation of battery pack to monocell；
On the circuit that the feedback circuit access monocell is connected with secondary coil, for gathering the information of voltage of monocell and sending control
Signal processed；The input terminal of the trigger is connected with feedback circuit, for receiving control signal and providing control letter for switching tube
Number；The control terminal of the switching tube and the output terminal of trigger connect, and the switching tube access battery pack is connected with primary coil
Circuit on, for controlling the on and off of dc-dc；The Bluetooth control module is connected with feedback circuit, is used for
Parameter in feedback control circuit.
Further, the both ends of the secondary coil are additionally provided with RC filter circuits.
Compared with prior art, the invention has the advantages that：Monocell obtains a reality after feedback circuit
For the magnitude of voltage of border output voltage size to produce control signal, control signal controls DC-DC into trigger controlling switch pipe
The on and off of converter, realizes forward direction DC-DC voltage compensations in battery equalization system；Bluetooth control module can be at any time
Parameters in remote control feedback circuit.By the present invention, the anti-of DC-DC control circuits in battery equalization system is improved
Feedback and compensation efficiency, and can according to different situations by Bluetooth control module come the items to feedback circuit and control circuit
Parameter is optimized accordingly.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the circuit structure diagram of the present invention.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment
DC-DC control circuits in battery equalization system as shown in Figure 1, including battery pack, dc-dc, monocell,
Feedback circuit, control circuit, Bluetooth control module, the control circuit include trigger, switching tube；The dc-dc
Primary coil and the both ends of battery pack connect, its secondary coil is connected with monocell both ends, for by the voltage benefit of battery pack
Repay to monocell；On the circuit that the feedback circuit access monocell is connected with secondary coil, for gathering the voltage of monocell
Information simultaneously sends control signal；The input terminal of the trigger is connected with feedback circuit, for receiving control signal and to switch
Pipe provides control signal；The output terminal of the control terminal of the switching tube and trigger connects, the switching tube access battery pack with
On the circuit of primary coil connection, for controlling the on and off of dc-dc；The Bluetooth control module and feedback electricity
Road connects, and for the parameter in feedback control circuit, the both ends of the secondary coil are additionally provided with RC filter circuits.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further
Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should all include
Within protection scope of the present invention.
Claims (2)
1. the DC-DC control circuits in battery equalization system, it is characterised in that including battery pack, dc-dc, monocell,
Feedback circuit, control circuit, Bluetooth control module, the control circuit include trigger, switching tube；
The primary coil of the dc-dc and the both ends of battery pack connect, its secondary coil is connected with monocell both ends, use
In by the voltage compensation of battery pack to monocell；
On the circuit that the feedback circuit access monocell is connected with secondary coil, the information of voltage for gathering monocell is concurrent
Go out control signal；
The input terminal of the trigger is connected with feedback circuit, for receiving control signal and providing control signal for switching tube；
The control terminal of the switching tube and the output terminal of trigger connect, and the switching tube access battery pack is connected with primary coil
Circuit on, for controlling the on and off of dc-dc；
The Bluetooth control module is connected with feedback circuit, for the parameter in feedback control circuit.
2. the DC-DC control circuits in battery equalization system according to claim 1, it is characterised in that the secondary wire
The both ends of circle are additionally provided with RC filter circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341289.3A CN108011525A (en) | 2017-12-14 | 2017-12-14 | DC-DC control circuits in battery equalization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711341289.3A CN108011525A (en) | 2017-12-14 | 2017-12-14 | DC-DC control circuits in battery equalization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108011525A true CN108011525A (en) | 2018-05-08 |
Family
ID=62058794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711341289.3A Pending CN108011525A (en) | 2017-12-14 | 2017-12-14 | DC-DC control circuits in battery equalization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108011525A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710786A (en) * | 2009-11-11 | 2010-05-19 | 成都芯源系统有限公司 | Switch voltage stabilizing circuit and method |
| CN101764421A (en) * | 2010-01-15 | 2010-06-30 | 中国科学院电工研究所 | Equalizing equipment for battery units of electric automobile |
| CN203607902U (en) * | 2013-12-20 | 2014-05-21 | 惠州市亿能电子有限公司 | Battery pack equalization circuit |
| CN203707815U (en) * | 2013-12-09 | 2014-07-09 | 北汽福田汽车股份有限公司 | A balance control system of a power battery pack |
| CN204789665U (en) * | 2015-07-08 | 2015-11-18 | 张家安 | 0. 1Hz ultralow frequency high voltage generator |
| CN106169863A (en) * | 2016-08-13 | 2016-11-30 | 浙江大学 | The control circuit of buck-boost type circuit of power factor correction and control method thereof |
-
2017
- 2017-12-14 CN CN201711341289.3A patent/CN108011525A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710786A (en) * | 2009-11-11 | 2010-05-19 | 成都芯源系统有限公司 | Switch voltage stabilizing circuit and method |
| CN101764421A (en) * | 2010-01-15 | 2010-06-30 | 中国科学院电工研究所 | Equalizing equipment for battery units of electric automobile |
| CN203707815U (en) * | 2013-12-09 | 2014-07-09 | 北汽福田汽车股份有限公司 | A balance control system of a power battery pack |
| CN203607902U (en) * | 2013-12-20 | 2014-05-21 | 惠州市亿能电子有限公司 | Battery pack equalization circuit |
| CN204789665U (en) * | 2015-07-08 | 2015-11-18 | 张家安 | 0. 1Hz ultralow frequency high voltage generator |
| CN106169863A (en) * | 2016-08-13 | 2016-11-30 | 浙江大学 | The control circuit of buck-boost type circuit of power factor correction and control method thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180508 |
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| RJ01 | Rejection of invention patent application after publication |