CN107516749A - Zeta type biswitch multichannels battery voltage balanced topology and its control method - Google Patents
Zeta type biswitch multichannels battery voltage balanced topology and its control method Download PDFInfo
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- CN107516749A CN107516749A CN201710936295.7A CN201710936295A CN107516749A CN 107516749 A CN107516749 A CN 107516749A CN 201710936295 A CN201710936295 A CN 201710936295A CN 107516749 A CN107516749 A CN 107516749A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000010586 diagram Methods 0.000 description 9
- 230000007423 decrease Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- 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
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4264—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing with capacitors
-
- 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
- H01M10/46—Accumulators structurally combined with charging apparatus
-
- 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
- H02J7/0019—Circuits for equalisation of charge between batteries using switched or multiplexed charge circuits
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention relates to multichannel technology of pressure equalization field, especially Zeta types biswitch multichannel battery voltage balanced topology and its control method, prime Zeta type DC DC converters inputs are connected with battery pack both positive and negative polarity, and output end is connected with rear class di-cap equalizing circuit；Prime Zeta type DC DC converters connect prime open-cycle controller；The switching tube S of prime Zeta type DC DC converters1With switching tube S2 respectively with inductance L1With inductance L2Parallel connection, it is in parallel after with electric capacity C1Series connection；Rear class di-cap equalizing circuit includes N number of voltage balancing module, and a rectifier bridge being constituted by a diode is connected between two electric capacity of each electric voltage equalization mould；Each voltage balancing module output end connects a battery cell respectively.The invention only includes two switching tubes and two magnetic elements, and circuit structure is simple, cost is low, easy extension and small volume, and without closed-loop control, all switching tubes can realize that ZVS is turned on, and be a kind of high performance control method.
Description
Technical field
The present invention relates to multichannel technology of pressure equalization field, especially Zeta types biswitch multichannel battery voltage balanced topology and its
Control method.
Background technology
At present, energy crisis has become hot issue of concern with environmental pollution.Protected in energy crisis and environment
Under the dual-pressure of shield, countries in the world are all actively carrying out green energy resource technological development.In the development and application of various green energy resources
In, lithium battery with its, memory-less effect higher than energy, have extended cycle life the advantages that, be widely used in various energy-storage systems.But
Single lithium battery voltage is relatively low, it is necessary to which dozens of individual battery cells even up to a hundred are connected in groups to realize High voltage output.Due to
The otherness of the characteristic such as each internal resistance of single cell, leakage current, temperature during manufacture and use, easily cause the inequality of battery pack
Weigh phenomenon, is embodied in and occurs overcharging and cross and putting phenomenon for cell during use, and ultimately results in battery performance
Drastically decline, cycle life shortens.To extend battery pack service life, voltage balance circuit need to be added in battery pack.
In recent years, numerous studies have been done to cell balancing by academia.Active equalization skill can be divided into from circuit property
Art and the class of passive equalization technology two.Active equalization is to adjust each cell voltage based on active switch, is characterized in euqalizing current,
The speed that weighs is controllable, and the accuracy of equalization is higher, but balanced topology is relative complex, not easy care.Passive equalization technology utilizes resistance, electricity
The passive devices such as appearance, inductance, transformer realize that each cell is balanced, and it carries out equilibrium by circuit self-characteristic, has body
The advantages that product is small, easy to control, but its balancing speed and precision have higher dependence to balanced topology.It is existing to be based on voltage multiplier
The technology of pressure equalization of topological structure, it is pressed using electric capacity and diode network, and circuit structure and control are relatively easy, but should
Technology of pressure equalization switching loss is higher, and cross influence is serious, while needs more magnetic element.
The content of the invention
The present invention provides a kind of Zeta types biswitch multichannel battery voltage balanced topology and its control method, overcomes above-mentioned existing
There is technology of pressure equalization shortcoming.
The technical solution adopted by the present invention is：
Zeta type biswitch multichannels battery voltage balanced topology, including prime Zeta types DC-DC converter, rear class electric capacity-
Diode equalizing circuit and battery pack, prime Zeta type DC-DC converter inputs are connected with battery pack both positive and negative polarity, input voltage
There is provided by battery pack, output end is connected with rear class electric capacity-diode equalizing circuit；
Prime Zeta types DC-DC converter connects prime open-cycle controller；
Prime Zeta types DC-DC converter includes switching tube S1, switching tube S2, inductance L1, inductance L2 and electric capacity C1.
Battery pack includes N number of battery cell, and battery cell is connected in series composition battery pack；
Rear class electric capacity-diode equalizing circuit includes N number of voltage balancing module, and each voltage balancing module includes two electricity
Hold, a rectifier bridge being constituted by a diode is connected between two electric capacity；Each voltage balancing module output end connects one respectively
Battery cell.
Prime Zeta types DC-DC converter only includes two switching tubes and two magnetic elements, while two switching tubes can
Open loop situations are worked in, without closed-loop control, reduce balanced device volume and control complexity.
ZVS conductings can be achieved in all switching tubes in Zeta types switch multichannel battery voltage balanced topology, reduce out
Close loss.
Voltage balancing module in rear class electric capacity-diode equalizing circuit is made up of electric capacity, diode, the logical friendship of electric capacity every
Straight effect, and the rectifier bridge that diode is formed have conduct current, and it can effectively prevent battery corresponding to voltage balancing module
Monomer short circuit.
The control method of Zeta type biswitch multichannels battery voltage balanced topology, prime open-cycle controller directly export one
Switching tube S1 and switching tube in the pulse drive signal driving prime Zeta type DC-DC converters for the open loop complementation that group band is die
S2, without closed-loop control；Simultaneously in the dead time of two-way complementary pulse signal, it can be achieved switching tube S1's and switching tube S2
ZVS is turned on.
Compared with prior art, the beneficial effects of the invention are as follows：
First, compared with existing active equalization technology, the present invention only includes two switching tubes and two magnetic elements, and
Without multiwinding transformer in weighing apparatus circuit, have the advantages that simple circuit structure, small volume, cost are low, circuit control is simple.
2nd, compared with existing active equalization technology, two switching tubes can in prime Zeta type DC-DC converters of the present invention
Open loop situations are worked in, without closed-loop control, reduce balanced device volume and control complexity.
3rd, compared with existing active equalization technology, it is i.e. achievable more that a preceding stage DC-DC converter is used only in the present invention
Road is battery balanced, while ZVS conductings can be achieved in all switching tubes, reduce switching loss.
Brief description of the drawings
Fig. 1 is the circuit structure diagram of the present invention.
Fig. 2 is the Zeta type biswitch multichannel battery voltage balanced topological diagrams of the present invention.
Fig. 3 a are balanced topology shown in Fig. 2 in the mode I operation mode circuit diagrams of a switch periods.
Fig. 3 b are balanced topology shown in Fig. 2 in the ModeII operation mode circuit diagrams of a switch periods.
Fig. 3 c are balanced topology shown in Fig. 2 in the ModeIII operation mode circuit diagrams of a switch periods.
Fig. 3 d are balanced topology shown in Fig. 2 in the ModeIV operation mode circuit diagrams of a switch periods.
Fig. 3 e are balanced topology shown in Fig. 2 in the mode V operation mode circuit diagrams of a switch periods.
Fig. 3 f are balanced topology shown in Fig. 2 in the ModeVI operation mode circuit diagrams of a switch periods.
Fig. 4 is DC voltage equilibrium equivalent model corresponding to the circuit topology of the present invention.
Fig. 5 is circuit topology figure of the present invention using three battery voltage balanceds as embodiment.
Fig. 6 is the main time-domain-simulation waveform (open loop) of Fig. 5 embodiments.
Fig. 7 is the switching drive signal waveform and other major experimental waveforms of Fig. 5 embodiments.
Fig. 8 is that two active switches of Fig. 5 embodiments realize the experimental waveform of ZVS conductings.
Fig. 9 is that the cell voltage under the battery standing equilibrium state of Fig. 5 embodiments converts oscillogram.
Embodiment
Further detailed description is done to the present invention below by specific example with reference：
Fig. 1 is the system architecture diagram of the present invention, as shown in figure 1, Zeta type biswitch multichannels battery voltage balanced is topological,
Including prime Zeta types DC-DC converter 1, rear class electric capacity-diode equalizing circuit 2 and battery pack 3, prime Zeta types DC-DC
The input of converter 1 is connected with the both positive and negative polarity of battery pack 3, and input voltage is provided by battery pack 3, output end and the pole of rear class electric capacity-two
Pipe equalizing circuit 2 is connected；
Prime Zeta types DC-DC converter 1 connects prime open-cycle controller 4；
Prime Zeta types DC-DC converter 1 includes switching tube S1, switching tube S2, inductance L1, inductance L2 and electric capacity C1.
Battery pack 3 includes N number of battery cell, and battery cell, which is connected in series, forms battery pack 3；
Rear class electric capacity-diode equalizing circuit 2 includes N number of voltage balancing module, and each voltage balancing module includes two
Electric capacity, a rectifier bridge being constituted by a diode is connected between two electric capacity；Each voltage balancing module output end connects one respectively
Individual battery cell.
Prime Zeta types DC-DC converter 1 absorbs energy from battery pack 3, and is output to the balanced electricity of rear class electric capacity-diode
In road 2；Voltage balancing module in rear class electric capacity-diode equalizing circuit 2 realizes battery balanced, electric capacity by capacitor charge and discharge
Logical friendship blocking effect, and diode form rectifier bridge there is conduct current, it can effectively prevent voltage balancing module institute
Corresponding battery cell short circuit；The complementary pulsed drive letter of the open loop that directly one group of band of output is die of prime open-cycle controller 4 simultaneously
Two switching tubes in number driving prime Zeta types DC-DC converter 1 are simple without closed-loop control, control.
Have as shown in Fig. 3 a to Fig. 3 f, during Zeta type biswitch multichannel battery voltage balanced topology balanced operations of the invention
6 mode.
Mode one:ModeI in Fig. 3 a, i in this modeL1>0 and iL2<0.In t0Moment, switching tube S1Conducting, switch
Pipe S2Shut-off.Diode Di4Conducting, remaining diode Di1,Di2,Di3(i=1,2 ..., n) reversely cut-off.iL1 and iL2Linearly
Rise, work as iL2This mode terminates when rising to zero.
Mode two:ModeII in Fig. 3 b, i in this modeL1>0 and iL2>0.Diode Di1Conducting, diode Di2, two
Pole pipe Di3, diode Di4(i=1,2 ..., n) reversely by.Electric current iL1 and iL2Continue linear rise.
Mode three:ModeIII in Fig. 3 c, t2~t3Period is dead time.t2Moment, switching tube S1Conducting, electric current
iS1Dropped in dead time in addition, switching tube S2Body diode conducting, diode D in this modei1, diode Di2Conducting, two
Pole pipe Di3, diode Di4(i=1,2 ..., n) reversely by.Electric current iL1And iL2Linear decline.
Mode four:ModeIV in Fig. 3 d, in t3Moment, switching tube S2Realize that ZVS is turned on.Electric current iL1And iL2Under linear
Drop, descending slope are identical with mode three.Diode current flow and off state are identical with mode three.Electric current iL2When dropping to zero, this
Mode terminates.
Mode five:ModeV in Fig. 3 e, in this mode, iL1>0 and iL2<0, diode Di3And diodes Di4Conducting, two
Pole pipe Di1And diodes Di2(i=1,2 ..., n) reversely by.Electric current iL1And iL2Continue linear decline.
Mode six:ModeVI in Fig. 3 f, t5~t6Period is dead time.In t5Moment, switching tube S2Shut-off, electricity
Flow iS2Zero is dropped in dead time, switching tube S1Body diode conducting.In this mode, diode current flow and off state with
Mode one is identical, electric iL1And iL2Linear rise.In t6Moment, switching tube S1Conducting, mode six terminate.Now switching tube S1Realize
ZVS is turned on.
From the foregoing, the biswitch multichannel battery voltage balanced topology balancing procedures of Zeta types shown in Fig. 2 can be equivalent to Fig. 4
Shown direct current equilibrium model.As shown in Figure 4, the lower battery absorption energy of cell voltage is more in balancing procedure, final to realize electricity
3 all battery voltage balanceds of pond group.
Fig. 6, Fig. 7 and Fig. 8 are balanced simulation waveform and experimental waveform, initial voltage of battery V corresponding to Fig. 5 embodimentsB1=
3.64V,VB2=3.66V, VB3=3.3V, from Fig. 6 and Fig. 7, the key waveforms such as inductive current and analysis one in experimental verification
Cause.Known by Fig. 8, in balancing procedure, all switching tubes realize that ZVS is turned on.As shown in Figure 9, although initial voltage of battery is different,
But with continuing for charging process, the balanced device realizes the battery voltage balanced of battery pack 3.
To sum up, a kind of Zeta types biswitch multichannel battery voltage balanced proposed by the invention topology, it is simple in construction, easily-controllable
System, easily extension and operating efficiency height, no matter battery pack 3 can quickly realize electricity in charging, electric discharge or static condition, balanced device
Pond monomer voltage is balanced, suitable for low cost, the battery balanced occasion of small size.
Claims (3)
1.Zeta type biswitch multichannels battery voltage balanced topology, including prime Zeta types DC-DC converter, rear class electric capacity-two
Pole pipe equalizing circuit and battery pack, it is characterised in that prime Zeta type DC-DC converter inputs and battery pack both positive and negative polarity phase
Even, input voltage is provided by battery pack, and output end is connected with rear class electric capacity-diode equalizing circuit；
Prime Zeta types DC-DC converter connects prime open-cycle controller；
Prime Zeta types DC-DC converter includes switching tube S1, switching tube S2, inductance L1, inductance L2 and electric capacity C1.
2. Zeta types biswitch multichannel battery voltage balanced topology according to claim 1, it is characterised in that described electricity
Pond group includes N number of battery cell, and battery cell is connected in series composition battery pack；
Rear class electric capacity-diode equalizing circuit includes N number of voltage balancing module, and each voltage balancing module includes two electric capacity,
A rectifier bridge being constituted by a diode is connected between two electric capacity；Each voltage balancing module output end connects a battery respectively
Monomer.
3. the control method of Zeta types biswitch multichannel battery voltage balanced topology according to claim 1 or 2, its feature
It is, the complementary pulse drive signal driving prime Zeta types of the prime open-cycle controller open loop that directly one group of band of output is die
Switching tube S1 and switching tube S2 in DC-DC converter, without closed-loop control；Simultaneously at the dead band of two-way complementary pulse signal
Between, switching tube S1 and switching tube S2 ZVS conductings can be achieved.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710936295.7A CN107516749A (en) | 2017-10-10 | 2017-10-10 | Zeta type biswitch multichannels battery voltage balanced topology and its control method |
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| CN201710936295.7A CN107516749A (en) | 2017-10-10 | 2017-10-10 | Zeta type biswitch multichannels battery voltage balanced topology and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629797A (en) * | 2021-06-28 | 2021-11-09 | 湖南大学 | Multi-path staggered battery pulse charging converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090067200A1 (en) * | 2004-06-28 | 2009-03-12 | Siemens Aktiengesellschaft | Device and method for equalizing the charges of individual, series-connected cells of an energy storage device |
| CN103312168A (en) * | 2013-05-09 | 2013-09-18 | 燕山大学 | Bidirectional double-input ZETA direct-current converter and power distribution method thereof |
| CN104734231A (en) * | 2013-12-19 | 2015-06-24 | 上海吉能电源***有限公司 | Series battery pack equalizing device based on bidirectional direct-current converters and equalizing method |
| US20160118817A1 (en) * | 2013-05-28 | 2016-04-28 | Japan Aerospace Exploration Agency | Charge-discharge device with equalization function using both convertor and multi-stage voltage doubler rectifier circuit |
| CN207398299U (en) * | 2017-10-10 | 2018-05-22 | 西南交通大学 | Zeta type biswitch multichannels battery voltage balanced topology |
-
2017
- 2017-10-10 CN CN201710936295.7A patent/CN107516749A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090067200A1 (en) * | 2004-06-28 | 2009-03-12 | Siemens Aktiengesellschaft | Device and method for equalizing the charges of individual, series-connected cells of an energy storage device |
| CN103312168A (en) * | 2013-05-09 | 2013-09-18 | 燕山大学 | Bidirectional double-input ZETA direct-current converter and power distribution method thereof |
| US20160118817A1 (en) * | 2013-05-28 | 2016-04-28 | Japan Aerospace Exploration Agency | Charge-discharge device with equalization function using both convertor and multi-stage voltage doubler rectifier circuit |
| CN104734231A (en) * | 2013-12-19 | 2015-06-24 | 上海吉能电源***有限公司 | Series battery pack equalizing device based on bidirectional direct-current converters and equalizing method |
| CN207398299U (en) * | 2017-10-10 | 2018-05-22 | 西南交通大学 | Zeta type biswitch multichannels battery voltage balanced topology |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629797A (en) * | 2021-06-28 | 2021-11-09 | 湖南大学 | Multi-path staggered battery pulse charging converter |
| CN113629797B (en) * | 2021-06-28 | 2024-02-20 | 湖南大学 | Multi-path staggered battery pulse charging converter |
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Application publication date: 20171226 |