CN106026285A - Battery equalizer formed by multi-winding transformer - Google Patents
Battery equalizer formed by multi-winding transformer Download PDFInfo
- Publication number
- CN106026285A CN106026285A CN201610550348.7A CN201610550348A CN106026285A CN 106026285 A CN106026285 A CN 106026285A CN 201610550348 A CN201610550348 A CN 201610550348A CN 106026285 A CN106026285 A CN 106026285A
- Authority
- CN
- China
- Prior art keywords
- winding
- battery
- switching tube
- voltage
- group
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 title claims abstract description 151
- 230000000295 complement effect Effects 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims description 26
- 238000002955 isolation Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 7
- 230000035939 shock Effects 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 3
- 238000000844 transformation Methods 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000005415 magnetization Effects 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 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
- H02J7/0013—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
- 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
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
- H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a battery equalizer formed by a multi-winding transformer, which is characterized in that multiple windings with the same turns and different winding directions are arranged on a magnetic core; each winding is serially connected with a switch transistor to form a single-transistor forward circuit or a complementary push-pull circuit to be parallelly connected onto the positive electrode and the negative electrode of each battery, which is as shown as in a figure 1. According to two wiring directions of the windings, switch transistors corresponding to the single-transistor forward circuits are divided into an A group of switch transistors and a B group of switch transistors, the A group of switch transistors and the B group of switch transistors are alternatively conducted and cut off when the circuit works, the interval time is the same, and the switch frequency adopts a high frequency. By using the working feature that the single-transistor forward circuits and the complementary push-pull circuits are combined together, natural magnetic reset of the magnetic core is realized, and voltage balancing of the whole battery pack can also be realized. in order to improve the balancing ability and adapt to balancing of a more number of battery packs, further measures are adopted: all single-transistor forward circuits are changed into the complementary push-pull circuit; and multiple transformers are used, secondary windings are added on the magnetic core of the transformer, and all secondary windings are all parallelly connected according to a principle that homonymous ends are parallelly connected.
Description
Technical field
This patent relates to field of batteries, the battery equalizer being specifically made up of multiwinding transformer.
Background technology
Set of cells is wanted normally work and give full play to effect, it is necessary to use battery equalizer, although the appearance of lithium battery has had very
For many years, but the development of battery equalizer is very slow, and the equalizer that can use in the market is few.Property to be obtained
Valency, than good voltage equalizer, is common aspiration and the target of effort of people.
Simplest way be on a magnetic core around multiple windings to do voltage equalizer, although a lot of people have carried out such tasting
Examination, but do not obtain significant result, reason is that magnetic reset circuit is not given to correct process, so that the knot obtained
Fruit has two kinds: 1, and magnetic core cannot reset, thus cannot make actual machine；2, it is necessary to increase special magnetic reset circuit, its
Result is to cause volume and the cost increase of circuit, and conversion efficiency reduces.
Summary of the invention
Solve the technical problem that:
How to allow the multiwinding transformer magnetic core in battery equalizer rationally be resetted, can allow again all electricity in set of cells simultaneously
Pond whole voltages when reaching equalization stable are consistent, and circuit structure is both simple simultaneously, and cost is the lowest.
Solution:
In order on the premise of not increasing special magnetic reset circuit solve magnetic reset problem, this equalizer use on a magnetic core around
Make multiple number of turn identical, around to different coil windings, by concatenating formation single tube forward converter or complementary push-pull electricity with switching tube
Road is attempted by the both positive and negative polarity of each battery, as shown in Figure 1.Complementary push-pull circuit and single tube forward converter is utilized to be combined together
Work characteristics, both can realize the automatic magnetic reset of magnetic core, it is no longer necessary to special magnetic reset circuit, whole battery can have been realized again
The electric voltage equalization of group.Concrete scheme is as follows:
Scheme 1, equalizer uses a multiwinding transformer, and the number of turn of each winding is identical, direction of winding is different, as
Shown in Fig. 1.Connect between the both positive and negative polarity of each battery and have a single tube forward converter or complementary push-pull circuit.According to winding
The difference of direction of winding, is referred to as A circuit by single tube forward converter corresponding for one of them direction of winding, and corresponding switching tube is referred to as
A switching tube, corresponding battery is referred to as A Battery pack；Single tube forward converter corresponding for another direction of winding is referred to as B circuit,
Corresponding switching tube is referred to as B switching tube, and corresponding battery is referred to as B Battery pack.All A switching tubes and all B during equalizer work
Switching tube alternate conduction and cut-off, interval time is equal, and switching frequency uses high frequency.Due to the winding that A with B switching tube is corresponding
Direction of winding is contrary, so their alternate conduction necessarily causes the natural magnetic reset of magnetic core of transformer.
Owing to there being the existence of complementary push-pull circuit, it is actually made up of two single tube forward converters of A and B, and its institute is right
The battery answered both had belonged to A Battery pack, belonged to again B Battery pack, also referred to as bridge battery.When equilibrium reaches stable, all A
It is completely the same that Battery pack realizes voltage, and it is completely the same that all B Battery packs realize voltage, because bridge battery is both in A Battery pack,
Again in B battery group, the most all batteries, on the basis of bridge battery, are finally reached whole voltage consistent, it is achieved the mesh of equilibrium
's.
Scheme 2, makes all single tube forward converters into complementary push-pull circuit on the basis of scheme 1, and the ability of equalization is doubled
Improve.
Scheme 3, for number of battery cells relatively many in the case of, with a transformator around the winding not descending desirable number time, solution
Way certainly is on the basis of scheme 1, allows transformator increase a secondary windings, uses the most identical multiple transformation
Device, the principle allowing the secondary windings of all transformators be in parallel according to Same Name of Ends is all connected in parallel.
Scheme 4, in order to improve portfolio effect further, makes single tube forward converters all in the circuit of such scheme 3 into complementation
Push-pull circuit, the ability of equalization obtains doubling to improve.
Invention beneficial effect:
It solves multiwinding transformer magnetic reset problem in voltage equalizer, the most do not increase special magnetic reset
Circuit, and it is able to ensure that after set of cells reaches equalization stable, the voltage of all batteries reaches completely the same.
Circuit is simple, and cost is low, and the voltage equalizer making cost performance outstanding really moves towards practical.
Accompanying drawing explanation
Fig. 1, is mixed, by single tube normal shock and complementary push-pull circuit, the single phase transformer equalizer figure formed
Fig. 2, the single phase transformer equalizer figure being made up of complementary push-pull circuit
Fig. 3, is mixed, by single tube normal shock and complementary push-pull circuit, the multiple transformers equalizer figure formed
Fig. 4, the multiple transformers equalizer figure being made up of complementary push-pull circuit
Detailed description of the invention
Embodiment 1, is mixed, by single tube forward converter and complementary push-pull circuit, the single phase transformer equalizer formed
As it is shown in figure 1, each umber of turn of transformator T is the most identical, i.e. N1=N2=1N3=2N3=N4=N5=...
=Nn, connects after each battery and has a single tube forward converter, and for B3 battery, connect below is a complementary push-pull
Circuit；All switching tubes, Q1, Q2,1Q3,2Q3, Q4, Q5...Qn can be metal-oxide-semiconductor, IGBT etc..
It can be seen that complementary push-pull circuit is made up of two single tube forward converters, the two single tube forward converter pair
The winding direction of winding answered is contrary.
Two direction of winding classification according to Transformer Winding, are divided into two groups: A group switching tube and B by the switching tube of all correspondences
Group switching tube.A group switching tube is Q1,1Q3, Q5, Q7...Corresponding battery B1, B3, B5, B7...It is referred to as A
Battery pack；B group switching tube is Q2,2Q3, Q4, Q6, Q8...Corresponding battery B2, B3, B4, B6...It is referred to as
B Battery pack.A group switching tube simultaneously turns on and ends, and B group switching tube simultaneously turns on and ends.
A group switching tube and B group switching tube alternate conduction and cut-off during equalizer work, ON time is equal to deadline；Switch
Frequency use high frequency, with guarantee single battery voltage opened by switching tube be added to Transformer Winding after can couple to equal proportion
On the winding that other battery is corresponding, it is ensured that outstanding portfolio effect.
If the driving pulse that the driving pulse of A group switching tube is DrA, B group switching tube is compared with DrB, DrA and DrB,
Voltage waveform is identical, and duty cycle is 50%, phase 180 degree.
When DrA is high level, when DrB is low level, A group switching tube Q1,1Q3, Q5, Q7...Conducting, B group
Switching tube Q2,2Q3, Q4, Q6, Q8...Cut-off, the voltage of B1 is added on N1 winding, and the voltage of B3 is added to 1N3
On winding, the voltage of B5 is added on N5 winding, and the voltage of B7 is added on N7 winding...So by transformer coupled, make
B1、B3、B5、B7...Battery is connected in parallel in the way of voltage isolation, it is achieved the battery that voltage is high transfers energy to
The battery that voltage is low, makes the voltage of A Battery pack tend to the most consistent, and portfolio effect is equal to B1, B3, B5, B7....
Taking apart from set of cells by the method for machinery, be the most all connected in parallel the portfolio effect produced.Meanwhile, transformator T
Magnetic core start magnetization.
When DrB is high level, when DrA is low level, B group switching tube Q2,2Q3, Q4, Q6, Q8...Conducting,
A group switching tube Q1,1Q3, Q5, Q7...Cut-off, the voltage of B2 is added on N2 winding, and the voltage of B3 is added to 2N3
On winding, the voltage of B4 is added on N4 winding, and the voltage of B6 is added on N6 winding...So by transformer coupled, make
B2, B3, B4, B6...Battery is connected in parallel in the way of voltage isolation, it is achieved the battery that voltage is high transfers energy to
The battery that voltage is low, makes the voltage of B Battery pack tend to the most consistent；Portfolio effect is equal to B2, B3, B4, B6...
The method of battery machinery is taken apart from set of cells, and be the most all connected in parallel the portfolio effect produced.Meanwhile, transformation
The magnetic core of device T starts to reset.
When DrA is high level, when DrB is low level, circuit starts the circulation in another cycle.
B1, B3, B5, B7 when equilibrium reaches stable, in A Battery pack...It is completely the same that battery reaches voltage, i.e.
B1=B3=B5=B7=...；B2, B3, B4, B6 in B Battery pack...It is completely the same that battery reaches voltage, i.e.
B2=B3=B4=B6=...Owing to A and B two Battery pack having B3 battery, finally make each battery in whole set of cells
Voltage on the basis of B3, reach all consistent, therefore B3 battery is also referred to as bridge battery, and corresponding complementary push-pull circuit is also
Shifting circuit in being referred to as.
Above-mentioned analysis assumes that the 3rd string battery is bridge battery, if bridge battery is B1, and B2, B3...In Bn battery
Any a string battery, conclusion is also same establishment；Whole set of cells can have more than one bridge battery, thus more than one
Individual middle shifting circuit；Bridge battery is the most, and the voltage the most easily reaching set of cells is fully equalize.
Assume that in FIG Transformer Winding around consistent, if not interval to being that the sequence according to battery is spaced from small to large
Unanimously, two of winding sort random distribution from small to large around to battery, and above-mentioned analysis conclusion is also to set up.
Embodiment 2, the single phase transformer equalizer being made up of complementary push-pull circuit
In order to improve the ability of equalization further, all make the single tube forward converter in Fig. 1 into complementary push-pull circuit, the ability of equalization
Doubled, as in figure 2 it is shown, the number of turn of all windings is the most identical in figure, i.e. 1N1=-1N2=2N1=2N2=3N1=
=3N2=4N1=...=nN1=nN2；All switching tube 1Q1,1Q2,2Q1,2Q2,3Q1,3Q2...NQ1,
NQ2 can use metal-oxide-semiconductor, IGBT etc..
Two direction of winding classification according to Transformer Winding, the switching tube concatenated with winding is divided into two groups: A group switching tube and B
Group switching tube.A group switching tube Q1,2Q1,3Q1,4Q1...NQ1 simultaneously turns on and ends；B group switching tube Q2,
2Q2、3Q2、4Q2...NQ2 simultaneously turns on and ends.
A group switching tube and B group switching tube alternate conduction and cut-off during equalizer work, ON time is equal to deadline；Switch
Frequency use high frequency, with guarantee single battery voltage opened by switching tube be added to Transformer Winding after can couple to equal proportion
On the winding that other battery is corresponding, it is ensured that outstanding portfolio effect.
If the driving pulse that the driving pulse of A group switching tube is DrA, B group switching tube is compared with DrB, DrA and DrB,
Voltage waveform is identical, and duty cycle is 50%, phase 180 degree.
When DrA is high level, when DrB is low level, A group switching tube 1Q1,2Q1,3Q1,4Q1...NQ1 leads
Logical, B group switching tube 1Q2,2Q2,3Q2,4Q2...NQ2 ends, and the voltage of B1 is added on 1N1 winding, B2's
Voltage is added on 2N1 winding, and the voltage of B3 is added on 3N1 winding...The voltage of Bn is added on nN1 winding, the most logical
Cross transformer coupled, make B1, B2, B3...Bn battery is connected in parallel in the way of voltage isolation, it is achieved the electricity that voltage is high
Pond transfers energy to the battery that voltage is low, makes the voltage of A Battery pack tend to the most consistent, and portfolio effect is equal to B1,
B2, B3...The method of Bn machinery is taken apart from set of cells, and be the most all connected in parallel the portfolio effect produced.With this
Meanwhile, the magnetic core of transformator T starts magnetization.
When DrB is high level, when DrA is low level, B group switching tube 1Q2,2Q2,3Q2,4Q2...NQ2 leads
Logical, A group switching tube 1Q1,2Q1,3Q1,4Q1...NQ1 ends, and the voltage of B1 is added on 1N2 winding, B2's
Voltage is added on 2N2 winding, and the voltage of B3 is added on 3N2 winding...The voltage of Bn is added on nN2 winding, the most logical
Cross transformer coupled, make B1, B2, B3, B4...Bn battery is connected in parallel in the way of voltage isolation, it is achieved voltage is high
Battery transfer energy to the battery that voltage is low, make the voltage of B Battery pack tend to all consistent；Portfolio effect is equal to B1,
B2, B3, B4...The method of Bn battery machinery is taken apart from set of cells, and be the most all connected in parallel the equilibrium effect produced
Really.Meanwhile, the magnetic core of transformator T starts to reset.
When DrA is high level, when DrB is low level, circuit starts the circulation in another cycle.
When equilibrium reaches stable, it is consistent that the battery in set of cells entirely reaches voltage.The feature of this circuit is: whole time model
Enclose interior all batteries to be connected in parallel in the way of electrical isolation the most always and equalize.
Embodiment 3, is mixed, by single tube normal shock and complementary push-pull circuit, the multiple transformers equalizer formed
When series-connected cell number is relatively many, around not descending the coil of desirable number on a magnetic core, in order to solve this
Problem, as it is shown on figure 3, equalizer uses multiple identical transformators, transformator sum has m, and each transformator is " real
Execute mode 1 " on the basis of the transformator that used, it is further added by an identical secondary windings Ns of the number of turn, by all transformators
The principle that secondary windings Ns is in parallel according to Same Name of Ends is all connected in parallel；The compositing characteristic of each transformator is: except increasing
Secondary coil Ns outside, the number of turn of remaining all winding is the most identical.All switching tubes can use metal-oxide-semiconductor, IGBT etc..
The operation principle of circuit is essentially identical with above-mentioned embodiment 1, except that: the battery group that different transformators are corresponding
Between by the coupling of secondary coil connected together, it is achieved the electric voltage equalization of whole set of cells.1B1,1B2,1B3 in figure...
1Bn is the 1st battery group, common transformer T1；2B1、2B2、2B3...2Bn is the 2nd battery group, shares and becomes
Depressor T2,...mB1、mB2、mB3...MBn is m battery group...Common transformer Tm.Whole equalizer
All switching tubes are divided into A group and B group by the middle difference according to winding direction of winding, and A group switching tube is: 1Q1,1Q3A,
1Q5、1Q7...2Q1、2Q3A、2Q5、2Q7...mQ1、mQ3A、mQ5、mQ7...；B group switching tube
For: 1Q2,1Q3B, 1Q4,1Q6...2Q2、2Q3B、2Q4、2Q6...mQ2、mQ3B、mQ4、mQ6...；
The winding direction of winding contrast that A group switching tube is corresponding with B group switching tube.A group switching tube is opened simultaneously and closes, accordingly
Driving pulse is referred to as DrA, corresponding battery 1B1,1B3,1B5,1B7...2B1、2B3、2B5、2B7...mB1、
mB3、mB5、mB7...It is referred to as A Battery pack；B group switching tube is opened simultaneously and closes, and respective drive pulse is referred to as DrB,
Corresponding battery 1B2,1B3,1B4,1B6...2B2,2B3,2B4,2B6...MB2, mB3, mB4, mB6...
It is referred to as B Battery pack；A group switching tube and B group switching tube alternate conduction and cut-off during equalizer work, when ON time and cut-off
Between equal；Compared with DrA with DrB, voltage waveform is identical, and duty cycle is 50%, phase 180 degree；Switch
Frequency uses high frequency, to guarantee outstanding portfolio effect.
When 1DR1 is high level, when 1DR2 is low level, A group switching tube turns on, and B group switching tube ends, battery 1B1
Voltage be added on 1N1 winding, the voltage of 1B3 is added on 1N3A winding, and the voltage of 1B5 is added on 1N5 winding, 1B7
Voltage be added on 1N7 winding...The voltage of 2B1 is added on 2N1 winding, and the voltage of 2B3 is added on 2N3A winding,
The voltage of 2B5 is added on 2N5 winding, and the voltage of 2B7 is added on 2N7 winding...The voltage of mB1 is added on mN1 winding,
The voltage of mB3 is added on mN3A winding, and the voltage of mB5 is added on mN5 winding...So by transformer coupled, make
A Battery pack (1B1,1B3,1B5...2B1、2B3、2B5...mB1、mB3、mB5...) with voltage isolation
Mode is connected in parallel, it is achieved the battery that voltage is high transfers energy to the battery that voltage is low, makes the voltage of this Battery pack tend to complete
Portion is consistent；Portfolio effect is equal to the most all take A Battery pack apart, and be the most all connected in parallel the equilibrium produced
Effect.Meanwhile, transformator T1, T2, T3, T4...The magnetic core of Tm starts magnetization.
When 1DR2 is high level, when 1DR1 is low level, B group switching tube turns on, and A group switching tube ends, 1B2's
Voltage is added on 1N2 winding, and the voltage of 1B3 is added on 1N3B winding, and the voltage of 1B4 is added on 1N4 winding, 1B6
Voltage be added on 1N6 winding...The voltage of 2B2 is added on 2N2 winding, and the voltage of 2B3 is added on 2N3B winding,
The voltage of 2B4 is added on 2N4 winding, and the voltage of 2B6 is added on 2N6 winding...The voltage of mB2 is added on mN2 winding,
The voltage of mB3 is added on mN3B winding, and the voltage of mB4 is added on mN4 winding...So by transformer coupled, make
B Battery pack (1B2,1B3,1B4,1B6...2B2、2B3、2B4、2B6...mB2、mB3、mB4、mB6...)
It is connected in parallel in the way of voltage isolation, it is achieved the battery that voltage is high transfers energy to the battery that voltage is low, makes this Battery pack
Voltage tend to all consistent；Portfolio effect is equal to the most all take B Battery pack apart, is the most all connected in parallel on one
Act the portfolio effect produced.Meanwhile, transformator T1, T2, T3, T4...The magnetic core of Tm starts to reset.
When 1DR1 is high level, when 1DR2 is low level, circuit starts the circulation in another cycle.
When equilibrium reaches stable, it is completely the same that each battery in A Battery pack reaches voltage；Each battery in B Battery pack
Reach voltage completely the same；Owing to A and B two Battery pack having 1B3,2B3,3B3...MB3 battery, finally makes whole
The voltage of each battery in individual set of cells is with 1B3,2B3,3B3...On the basis of mB3, reach all consistent, therefore 1B3,
2B3、3B3...MB3 battery is also referred to as bridge battery, the middle shifting circuit of corresponding complementary push-pull circuit.
Above-mentioned analysis assumes that 1B3,2B3,3B3...MB3 battery is bridge battery, if to be battery little for bridge battery
Other string battery, i.e. 1B1,1B2,1B3 in group...Any one in 1Bn, 2B1,2B2,2B3...2Bn
In any one, 3B1,3B2,3B3...Any one in 3Bn...mB1、mB2、mB3...In mBn
Any one, conclusion is also same establishment；The battery group that each transformator is corresponding can have more than one bridge battery,
Thus shifting circuit in more than one；Bridge battery is the most, and the voltage the most easily reaching whole set of cells is fully equalize.
The Same Name of Ends assuming that coiling in above-mentioned analysis is identical according to battery order interval, if winding around being random to Same Name of Ends
Distribution, conclusion is also to set up.
Embodiment 4, the multiple transformers equalizer being made up of complementary push-pull circuit
In order to improve the ability of equalization further, all make all single tube forward converters in Fig. 3 into complementary push-pull circuit, such as figure
Shown in 4, the centre tapped umber of turn of all bands is the most identical；Each transformator has the secondary coil Ns that a number of turn is identical,
The principle being connected in parallel according to Same Name of Ends is all connected in parallel；All switching tubes can use metal-oxide-semiconductor, IGBT etc..
The operation principle of circuit is essentially identical with above-mentioned embodiment 2, except that: secondary coil the most together,
Realize the electric voltage equalization of whole set of cells.
According to the difference of winding direction of winding, all switching tubes being divided into A group and B group, A group switching tube is: 1Q1A, 1Q2A,
1Q3A、1Q4A。。。2Q1A、2Q2A、2Q3A、2Q4A。。。3Q1A、3Q2A、3Q3A、3Q4A。。。mQ1A、
mQ2A、mQ3A、mQ4A...；B group switching tube is: 1Q1B, 1Q2B, 1Q3B, 1Q4B...2Q1B、2Q2B、
2Q3B、2Q4B...3Q1B、3Q2B、3Q3B、3Q4B...mQ1B、mQ2B、mQ3B、mQ4B...；
The winding direction of winding contrast that A group switching tube is corresponding with B group switching tube.A group switching tube is opened simultaneously and closes, accordingly
Driving pulse is referred to as DrA；B group switching tube is opened simultaneously and closes, and respective drive pulse is referred to as DrB；A during equalizer work
Group switching tube and B group switching tube alternate conduction and cut-off, ON time is equal with deadline；Compared with DrA with DrB, electricity
Corrugating is identical, and duty cycle is 50%, phase 180 degree.
When 1DR1 is high level, when 1DR2 is low level, A group switching tube turns on, and B group switching tube ends, battery 1B1
Voltage be added on 1N1A winding, the voltage of 1B2 is added on 1N2A winding, and the voltage of 1B3 is added on 1N3A winding,
The voltage of 1B4 is added on 1N4A winding...The voltage of battery 2B1 is added on 2N1A winding, and the voltage of 2B2 is added to 2N2A
On winding, the voltage of 2B3 is added on 2N3A winding, and the voltage of 2B4 is added on 2N4A winding...The voltage of battery 3B1
Being added on 3N1A winding, the voltage of 3B2 is added on 3N2A winding, and the voltage of 3B3 is added on 3N3A winding, 3B4's
Voltage is added on 3N4A winding...The voltage of battery mB1 is added on mN1A winding, the voltage of mB2 be added to mN2A around
In group, the voltage of mB3 is added on mN3A winding, and the voltage of mB4 is added on mN4A winding...So pass through transformator
Coupling, makes 1B1,1B2,1B3...2B1、2B2、2B3...mB1、mB2、mB3...MBn battery is with voltage
The mode of isolation is connected in parallel, it is achieved the battery that voltage is high transfers energy to the battery that voltage is low, makes the voltage of all batteries
Tend to the most consistent；Portfolio effect is equal to the most all take all batteries apart, and be the most all connected in parallel generation
Portfolio effect.Meanwhile, transformator T1, T2, T3...The magnetic core of Tm starts magnetization.
When 1DR2 is high level, when 1DR1 is low level, B group switching tube turns on, and A group switching tube ends, battery 1B1
Voltage be added on 1N1B winding, the voltage of 1B2 is added on 1N2B winding, and the voltage of 1B3 is added on 1N3B winding,
The voltage of 1B4 is added on 1N4B winding...The voltage of battery 2B1 is added on 2N1B winding, and the voltage of 2B2 is added to 2N2B
On winding, the voltage of 2B3 is added on 2N3B winding...The voltage of battery mB1 is added on mN1B winding, the electricity of mB2
Pressure is added on mN2B winding, and the voltage of mB3 is added on mN3B winding, and the voltage of mB4 is added on mN4B winding...
The voltage of mBn is added on mNnB winding；So by transformer coupled, make 1B1,1B2,1B3...2B1、2B2、
2B3...mB1、mB2、mB3...MBn battery is connected in parallel in the way of voltage isolation, it is achieved the battery that voltage is high
Transfer energy to the battery that voltage is low, make the voltage of all batteries tend to the most consistent；Portfolio effect is equal to all batteries
Taking apart from set of cells by the method for machinery, be the most all connected in parallel the portfolio effect produced.Meanwhile, transformator T1,
T2、T3...The magnetic core of Tm starts to reset.
When 1DR1 is high level, when 1DR2 is low level, circuit starts the circulation in another cycle.
When equilibrium reaches stable, it is consistent that all batteries in whole set of cells reach whole voltage.The feature of this circuit is: whole
In individual time range, all batteries is connected in parallel in the way of electrical isolation the most always and equalizes, and portfolio effect is fine.
This patent is not only suitable for lithium battery, is also applied for lead-acid battery, or the set of cells of same size is in series, to battery (or
The set of cells of same size) series connection number do not limit.
Embodiment of above is merely to illustrate this patent, and not restriction to this patent, about the general technology people of technical field
Member, in the case of without departing from the spirit and scope of this patent, it is also possible to make a variety of changes and combine, the most all equivalents
Technical scheme falls within the category of this patent, and this patent protection domain should be as listed by claims.
Claims (4)
1. the series battery voltage equalizer being made up of a multiwinding transformer, its circuit compositing characteristic is (such as Fig. 1): a,
The number of turn of each winding on magnetic core of transformer is identical, and winding has distribution on two direction of windings；B, each battery
Be respectively connected with a single tube forward converter or a complementary push-pull circuit between both positive and negative polarity, the corresponding windings of complementary push-pull circuit be by
Two are formed around to the identical winding centre tapped winding of the band obtained that joins end to end；Complementary push-pull circuit in whole circuit
Number is the most one or more；C, according to two direction of windings of the corresponding windings in single tube forward converter, by single tube normal shock electricity
Switching tube corresponding in road and complementary push-pull circuit is divided into two groups of switching tubes of A and B；The winding direction of winding that A group switching tube is corresponding
Identical, the winding direction of winding that B group switching tube is corresponding is identical；The winding direction of winding that A group switching tube is corresponding with B group switching tube
Contrast；A group switching tube and B group switching tube alternate conduction and cut-off, ON time and phase deadline during equalizer work
Deng；Switching frequency uses high frequency, to guarantee that cell voltage can equal proportion ground after being added to Transformer Winding by switching tube conducting
It is coupled on the winding that other battery is corresponding, it is ensured that outstanding portfolio effect；This equalizer is characterised by: the magnetic reset of magnetic core
It is naturally done, does not increase special magnetic reset circuit；After equilibrium reaches to stablize, the voltage of all batteries is with complementary push-pull
Whole voltage is reached consistent, it is achieved the purpose of equilibrium on the basis of the cell voltage that circuit is corresponding.
2. the series battery voltage equalizer being made up of a multiwinding transformer, its circuit compositing characteristic is (such as Fig. 2): a,
Having the centre tapped winding of multiple band on magnetic core of transformer, the number of turn of each winding is the most identical；B, the both positive and negative polarity of each battery it
Between be respectively connected with complementary push-pull circuit；C, according to the direction of winding of complementary push-pull circuit corresponding windings, is divided into A by correspondence switching tube
With two groups of switching tubes of B；The winding direction of winding that A group switching tube is corresponding is identical, the winding direction of winding phase that B group switching tube is corresponding
With；The winding direction of winding contrast that A group switching tube is corresponding with B group switching tube；A group switching tube and B during equalizer work
Group switching tube alternate conduction and cut-off, ON time and deadline are equal；Switching frequency uses high frequency, to guarantee cell voltage
Opened by switching tube be added to Transformer Winding after can be coupled to equal proportion on the winding that other battery is corresponding, it is ensured that outstanding
Portfolio effect；This equalizer is characterised by: be all connected in parallel in the way of electrical isolation in the range of full-time of all single batteries
Together, it is achieved the purpose of equilibrium.
3. the series battery voltage equalizer being made up of multiple identical transformators, its circuit compositing characteristic is (such as Fig. 3):
Each transformator except identical in addition to different primary coils by multiple numbers of turn, the secondary coil that also a number of turn is identical, all
The principle that the secondary coil of transformator is connected in parallel according to Same Name of Ends is all connected in parallel；For corresponding to each transformator
Local cell group, between the both positive and negative polarity of each battery connect have a single tube forward converter or a complementary push-pull circuit, mutually
Mend the number at least of push-pull circuit；Two direction of windings according to whole transformer, by corresponding single tube
Switching tube in forward converter is divided into two groups of switching tubes of A and B；The winding direction of winding that A group switching tube is corresponding is identical, and B group is opened
The winding direction of winding closing pipe corresponding is identical；The winding direction of winding contrast that A group switching tube is corresponding with B group switching tube；All
During weighing apparatus work, A group switching tube is equal with B group switching tube alternate conduction and cut-off, ON time and deadline；Switching frequency
Use high frequency, to guarantee that the voltage of each battery can be coupled to equal proportion after being added to Transformer Winding by switching tube conducting
On the winding that other battery is corresponding, it is ensured that outstanding portfolio effect；This equalizer is characterised by: the magnetic reset of magnetic core is nature
Complete, do not increase special magnetic reset circuit；After equilibrium reaches to stablize, the voltage of all batteries is with complementary push-pull circuit institute
Whole voltage is reached consistent, it is achieved the purpose of equilibrium, the number of battery cells of whole set of cells can compare on the basis of corresponding cell voltage
More.
4. the series battery voltage equalizer being made up of multiple identical transformators, its circuit compositing characteristic is (such as Fig. 4):
Each transformator in by the identical band of multiple numbers of turn in addition to the primary coil of tap, an also secondary coil, all transformations
The principle that the secondary coil of device is connected in parallel according to Same Name of Ends is all connected in parallel；The centre tapped primary coil of all bands divides
Formed between the both positive and negative polarity that complementary push-pull circuit is connected in parallel on each battery after not concatenating with two switching tubes；Equalizer mutual when working is mended
Two groups of switching tube alternate conduction corresponding in push-pull circuit and cut-off, ON time and deadline are equal；Switching frequency uses height
Frequently, with guarantee the voltage of each battery opened by switching tube be added to Transformer Winding after can be coupled to equal proportion other electricity
On the winding that pond is corresponding, it is ensured that outstanding portfolio effect；This equalizer is characterised by: each battery in whole set of cells exists
All being connected in parallel in the way of electrical isolation in the range of full-time, it is achieved the purpose of equilibrium, the number of battery cells of whole set of cells can
Many with comparison.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550348.7A CN106026285B (en) | 2016-07-06 | 2016-07-06 | Battery equalizer composed of multi-winding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610550348.7A CN106026285B (en) | 2016-07-06 | 2016-07-06 | Battery equalizer composed of multi-winding transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106026285A true CN106026285A (en) | 2016-10-12 |
| CN106026285B CN106026285B (en) | 2024-02-06 |
Family
ID=57118672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610550348.7A Active CN106026285B (en) | 2016-07-06 | 2016-07-06 | Battery equalizer composed of multi-winding transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106026285B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359670A (en) * | 2017-08-21 | 2017-11-17 | 上海空间电源研究所 | A kind of space high-voltage batteries bidirectional equalization circuit and its bidirectional equalization method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5659237A (en) * | 1995-09-28 | 1997-08-19 | Wisconsin Alumni Research Foundation | Battery charging using a transformer with a single primary winding and plural secondary windings |
| US6150795A (en) * | 1999-11-05 | 2000-11-21 | Power Designers, Llc | Modular battery charge equalizers and method of control |
| JP2005017156A (en) * | 2003-06-27 | 2005-01-20 | Fuji Heavy Ind Ltd | Abnormality detection device for battery |
| CN2899130Y (en) * | 2005-08-03 | 2007-05-09 | 郭文成 | Equalizing controller of series battery set |
| CN101345431A (en) * | 2008-08-20 | 2009-01-14 | 东风汽车股份有限公司 | Charging equalization device for series storage battery pack |
| CN101567574A (en) * | 2009-06-03 | 2009-10-28 | 王创社 | Proportional balancing method for voltage of energy storage device and circuit |
| CN103036258A (en) * | 2011-10-08 | 2013-04-10 | 上海锂曜能源科技有限公司 | Battery pack balancing system and method |
| CN103280862A (en) * | 2013-06-06 | 2013-09-04 | 肖兴龙 | Series battery pack voltage equalizer |
| CN204012765U (en) * | 2014-04-04 | 2014-12-10 | 刘维洪 | A kind of battery equalizing circuit |
| CN206790127U (en) * | 2016-07-06 | 2017-12-22 | 肖兴龙 | The battery equalizer being made up of multiwinding transformer |
-
2016
- 2016-07-06 CN CN201610550348.7A patent/CN106026285B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5659237A (en) * | 1995-09-28 | 1997-08-19 | Wisconsin Alumni Research Foundation | Battery charging using a transformer with a single primary winding and plural secondary windings |
| US6150795A (en) * | 1999-11-05 | 2000-11-21 | Power Designers, Llc | Modular battery charge equalizers and method of control |
| JP2005017156A (en) * | 2003-06-27 | 2005-01-20 | Fuji Heavy Ind Ltd | Abnormality detection device for battery |
| CN2899130Y (en) * | 2005-08-03 | 2007-05-09 | 郭文成 | Equalizing controller of series battery set |
| CN101345431A (en) * | 2008-08-20 | 2009-01-14 | 东风汽车股份有限公司 | Charging equalization device for series storage battery pack |
| CN101567574A (en) * | 2009-06-03 | 2009-10-28 | 王创社 | Proportional balancing method for voltage of energy storage device and circuit |
| CN103036258A (en) * | 2011-10-08 | 2013-04-10 | 上海锂曜能源科技有限公司 | Battery pack balancing system and method |
| CN103280862A (en) * | 2013-06-06 | 2013-09-04 | 肖兴龙 | Series battery pack voltage equalizer |
| CN204012765U (en) * | 2014-04-04 | 2014-12-10 | 刘维洪 | A kind of battery equalizing circuit |
| CN206790127U (en) * | 2016-07-06 | 2017-12-22 | 肖兴龙 | The battery equalizer being made up of multiwinding transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107359670A (en) * | 2017-08-21 | 2017-11-17 | 上海空间电源研究所 | A kind of space high-voltage batteries bidirectional equalization circuit and its bidirectional equalization method |
| CN107359670B (en) * | 2017-08-21 | 2020-06-09 | 上海空间电源研究所 | Bidirectional equalization circuit and bidirectional equalization method for space high-voltage storage battery pack |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106026285B (en) | 2024-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103280862B (en) | A kind of series battery voltage balanced device | |
| CN104467446B (en) | Potential device | |
| CN101567574A (en) | Proportional balancing method for voltage of energy storage device and circuit | |
| CN206790127U (en) | The battery equalizer being made up of multiwinding transformer | |
| CN108964478A (en) | Mode of resonance switch converters | |
| CN109067218A (en) | A kind of solid-state transformer topological structure method based on more level submodules | |
| CN204408198U (en) | Transformer and potential device | |
| CN106849235A (en) | A kind of equalizing circuit and control method | |
| CN107425727B (en) | Input series type auxiliary power supply | |
| CN106026285A (en) | Battery equalizer formed by multi-winding transformer | |
| Ye et al. | A multi-winding transformer-based active cell equalizer with self-driven switches for series-connected lithium-ion batteries and super-capacitors | |
| CN202231621U (en) | Shunt-wound structure of current transformer | |
| CN102315006B (en) | A kind of permanent-magnet gain transformer | |
| CN109617161A (en) | A kind of quasi-resonance interleaved switching capacitor batteries equalizing circuit and its control method | |
| CN105743331A (en) | Switching tube driving circuit for dual-tube flyback topological switch power supply | |
| CN103795261B (en) | Flyback converter and power supply system | |
| CN107546985A (en) | Switching mode power supply transformer demagnetizing method and device | |
| CN108599395A (en) | Driving circuit in resonance type wireless charging system | |
| CN106611975A (en) | Energy conversion system | |
| CN202309555U (en) | High-efficiency inverter | |
| CN204792384U (en) | Capacitanc cluster shunt transformer | |
| CN209627247U (en) | A kind of electric power electric transformer | |
| CN207637616U (en) | A kind of four column permanent magnetism transformers | |
| CN207587495U (en) | The transformer of hot pipe cooling dry type | |
| ES2394464A1 (en) | Box with transformer generator (Machine-translation by Google Translate, not legally binding) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |