CN206790155U - The unidirectional active equalization circuit of energy storage - Google Patents
The unidirectional active equalization circuit of energy storage Download PDFInfo
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- CN206790155U CN206790155U CN201720477417.6U CN201720477417U CN206790155U CN 206790155 U CN206790155 U CN 206790155U CN 201720477417 U CN201720477417 U CN 201720477417U CN 206790155 U CN206790155 U CN 206790155U
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Abstract
The unidirectional active equalization circuit of a kind of energy storage, for managing the charging process of battery, it is characterised in that including some basis equalization units；The basis equalization unit includes the post-module of double-end normal shock circuit, the high frequency transformer of the connection double-end normal shock circuit and some connection high frequency transformers；The post-module includes regulation circuit, the feedback circuit of the connection regulation circuit, the control circuit and diode D5 of the connection feedback circuit；The energy storage is provided with positive power source terminal and negative power end and some output ends with unidirectional active equalization circuit.Parallel connection of the energy storage of the present utility model with unidirectional active equalization circuit by multiple basis equalization circuits, enable the energy storage with the compatible series battery formed by all kinds battery of unidirectional active equalization circuit, it is embodied as the equalizaing charge of the type series battery, and the larger ability of equalization is provided, and reduce the management cost of series battery charge.
Description
Technical field
Battery management is the utility model is related to, more particularly to a kind of energy storage with unidirectional active equalization circuit.
Background technology
In energy storage field, battery is typically concatenated to obtain relatively large total voltage in output carrys out driving load.
And in the charging process of battery, it need to ensure that carrying out equilibrium to each battery of series connection fully charges, and can not make charging
After the completion of wherein excessive difference be present between the charged state and integral level of Individual cells, if charging complete is indivedual in series connection
Charged state on battery is horizontal far below overall charged state, then the exportable capacity of series-connected cell can be reduced to low
The capacity of the battery of charged state, similar in the battery using equalizing circuit order series connection general at present is kept during the charging
Charged state.
Battery types are more used in stored energy application, such as have lead-acid accumulator, ferric phosphate lithium cell, ternary lithium electricity
Pond, Ni-MH battery, super capacitor etc., and the operating voltage range of traditional equalizing circuit is narrower, causes equalizing circuit general only
Adapt to certain a kind of battery.And the capacity of the battery unit of battery pack is larger, traditional equalizing circuit can not provide enough equal
Weigh electric current.
Utility model content
Based on this, the utility model provides a kind of energy and supports a variety of battery types and the energy storage with the larger ability of equalization
With unidirectional active equalization circuit.
In order to realize the purpose of this utility model, the utility model uses following technical scheme：
The unidirectional active equalization circuit of a kind of energy storage, it is characterised in that including some basis equalization units；It is described substantially equal
The unit that weighs includes double-end normal shock circuit, the high frequency transformer of the connection double-end normal shock circuit and some connection high frequency transformations
The post-module of device；The post-module includes regulation circuit, the feedback circuit of the connection regulation circuit, the connection feedback
The control circuit and diode D5 of circuit；If the energy storage with unidirectional active equalization circuit be provided with positive power source terminal, negative power end and
Dry output end.
Parallel connection of the energy storage of the present utility model with unidirectional active equalization circuit by multiple basis equalization circuits, makes institute
The battery pack that energy storage adapts to different battery core serial numbers with unidirectional active equalization circuit is stated, is embodied as the type series battery
Equalizaing charge, and provide the larger ability of equalization, reduce the management cost of series battery charge.Because employ with single
To active equalization circuit and magnetic amplifier rear class adjustment circuit, the operating point of whole equalizing circuit is very wide, therefore can be compatible more
The battery of type.
In one of the embodiments, the double-end normal shock circuit includes electric capacity C1, diode D1, diode D2 and opened
Close pipe Q1, switching tube Q2；The double-end normal shock circuit is provided with anode connection terminal, negative pole connection end, primary side connection end of the same name and different
Name primary side connection end；All the anode connection terminal of the double-end normal shock circuit of the basis equalization unit is converged to form the energy storage use
The positive power source terminal of unidirectional active equalization circuit；All negative pole connection end congruences of the double-end normal shock circuit of the basis equalization unit
Conjunction forms negative power end of the energy storage with unidirectional active equalization circuit.
In one of the embodiments, the switching tube Q1 and switching tube Q2 are respectively equipped with first switch end, second switch
End and the 3rd switch terminals；Anode connection terminal of the one end of the electric capacity C1 as the double-end normal shock circuit；The electric capacity C1's
One end is connected with the negative electrode of the diode D1；One end of the electric capacity C1 also connects with the first connection end of the switching tube Q1
Connect；Of the same name primary side connection end of the 3rd switch terminals of the switching tube Q1 as the double-end normal shock circuit, and with the high frequency
Transformer connects；Negative electrode of the 3rd switch terminals of the switching tube Q1 also with the diode D2 is connected；The switching tube Q2's
Different name primary side connection end of the first switch end as the double-end normal shock circuit, is connected with the high frequency transformer；The switch
Anode of the pipe Q2 first switch end also with the diode D1 is connected；The 3rd switch terminals of the switching tube Q2 and the electric capacity
C1 other end connection；Anode of the 3rd switch terminals of the switching tube Q2 also with the diode D2 is connected.
In one of the embodiments, the switching tube Q1, switching tube Q2 are igbt；The switching tube
Q1, switching tube Q2 first switch end, second switch end and the 3rd switch terminals are respectively colelctor electrode, grid and emitter stage.
In one of the embodiments, the high frequency transformer includes primary side winding Np and some vice-side winding Ns；It is described
The primary side winding Np of high frequency transformer Same Name of Ends is connected with the primary side connection end of the same name of the double-end normal shock circuit；The high frequency
The primary side winding Np of transformer different name end is connected with the different name primary side connection end of the double-end normal shock circuit.
In one of the embodiments, the high frequency transformer includes primary side winding Np and some vice-side winding Ns；It is described
Circuit is adjusted to be provided with just secondary connection end and bear secondary connection end；The just secondary connection end of the regulation circuit and negative secondary connection
End is connected with the Same Name of Ends of a vice-side winding Ns and different name end respectively.
In one of the embodiments, the regulation circuit is provided with positive charging end and negative charging end；The regulation circuit bag
Include magnetic amplifier Nm, diode D3, D4, inductance L1 and electric capacity C2；One end of the magnetic amplifier Nm is as the regulation circuit
Just secondary connection end；The other end of the magnetic amplifier Nm is connected with the anode of the diode D3；The diode D3's
Negative electrode is connected with one end of the inductance L1；Negative electrode of the negative electrode of the diode D3 also with the diode D4 is connected；It is described
Negative secondary connection end of the diode D4 anode as the regulation circuit；The other end of the inductance L1 is as the regulation electricity
The positive charging end on road；The other end of the inductance L1 is connected with one end of the electric capacity C2；The other end of the electric capacity C2 and institute
State diode D4 anode connection；Negative charging end of the other end of the electric capacity C2 as the regulation circuit；The magnetic amplification
Device Nm one end and the diode D4 anode Same Name of Ends with a vice-side winding Ns of the high frequency transformer respectively
And different name end connection；The positive charging end and negative charging end of the regulation circuit are as the energy storage with unidirectional active equalization circuit
Output end；
The positive pole of the electric capacity C2 connects the other end of the inductance L1；The negative pole of the electric capacity C2 connects the diode
D4 anode.
In one of the embodiments, the feedback circuit is provided with first input end, the second input and feedback end；It is described
The both ends of the first input end of feedback circuit and the second input respectively with the electric capacity C2 are connected.
In one of the embodiments, the control circuit is provided with signal input part and switch member control terminal；The control
The signal input part of circuit is connected with the feedback end of the feedback circuit；The switch member control terminal of the control circuit and described two
Pole pipe D5 anode connection；The negative electrode of the diode D5 is connected with the other end of the magnetic amplifier Nm.
Brief description of the drawings
Fig. 1 is that the energy storage of a preferred embodiment of the present utility model is illustrated with the overall structure of unidirectional active equalization circuit
Figure；
Fig. 2 is the circuit diagram of basis equalization unit of the energy storage in unidirectional active equalization circuit shown in Fig. 1；
Fig. 3 is the circuit diagram of the post-module in the basis equalization unit shown in Fig. 2.
Embodiment
For the ease of understanding the utility model, the utility model will be described more fully below.But this practicality
It is new to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, provide these implementations
The purpose of example is to make the understanding more thorough and comprehensive to disclosure of the present utility model.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with belonging to technology of the present utility model
The implication that the technical staff in domain is generally understood that is identical.It is simply in term used in the description of the present utility model herein
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
Refer to Fig. 1 to Fig. 3, be the better embodiment of the utility model one energy storage with unidirectional active equalization circuit 10,
For managing the charging process of battery, the energy storage is by various using the electric energy of external power supply with unidirectional active equalization circuit 10
Battery is connected the series battery charge to be formed；The energy storage can make series battery charge with unidirectional active equalization circuit 10
During, charged state similar in each batteries holding.The unidirectional active equalization circuit 10 of the energy storage includes some substantially equal
Weigh unit 20；The basis equalization unit 20 includes double-end normal shock circuit 30, the high frequency of the connection double-end normal shock circuit 30 becomes
The post-module 50 of depressor 40 and some connection high frequency transformers 40；The post-module 50 includes regulation circuit 60, connected
Connect feedback circuit 70, the control circuit 80 and diode D5 of the connection feedback circuit 60 of the regulation circuit 60；The storage
It can be connected with the unidirectional side of active equalization circuit 10 with power supply；Opposite side and institute of the energy storage with unidirectional active equalization circuit 10
State series battery connection.
The energy storage is provided with positive power source terminal and negative power end with unidirectional active equalization circuit 10；The unidirectional active of the energy storage
The positive power source terminal and negative power end of equalizing circuit 10 are connected to external power supply；The energy storage is provided with unidirectional active equalization circuit 10
Some output ends；The energy storage is connected with the output end of unidirectional active equalization circuit 10 with the series battery.
Referring to Fig. 2, the double-end normal shock circuit 30 includes electric capacity C1, diode D1, D2, and switching tube Q1, Q2；It is described
Double-end normal shock circuit 30 is provided with anode connection terminal, negative pole connection end, primary side connection end of the same name and different name primary side connection end；Whole institutes
The anode connection terminal for stating the double-end normal shock circuit 30 of basis equalization unit 20 to form the unidirectional active of energy storage use by converging
The positive power source terminal of weighing apparatus circuit 10；All the negative pole connection end of the double-end normal shock circuit 30 of the basis equalization unit 20 is converged to be formed
The negative power end of the unidirectional active equalization circuit 10 of the energy storage；Described switching tube Q1, Q2 are respectively equipped with first switch end, second
Switch terminals and the 3rd switch terminals；Anode connection terminal of the one end of the electric capacity C1 as the double-end normal shock circuit 30；The electricity
The one end for holding C1 is connected with the negative electrode of the diode D1；One end of the electric capacity C1 is also connected with the first of the switching tube Q1
End connection；Of the same name primary side connection end of the 3rd switch terminals of the switching tube Q1 as the double-end normal shock circuit 30, and it is described
It is connected with high frequency transformer 40；Negative electrode of the 3rd switch terminals of the switching tube Q1 also with the diode D2 is connected；It is described to open
Different name primary side connection end of the pipe Q2 first switch end as the double-end normal shock circuit 30 is closed, is connected with the high frequency transformer 40
Connect；Anode of the first switch end of the switching tube Q2 also with the diode D1 is connected；The 3rd switch of the switching tube Q2
End is connected with the other end of the electric capacity C1；The 3rd switch terminals of the switching tube Q2 also connect with the anode of the diode D2
Connect.
In wherein a kind of embodiment, the energy storage is provided with the first bus and the second mother with unidirectional active equalization circuit is interior
Line；The anode connection terminal of the double-end normal shock circuit 30 of the basis equalization unit 20 connects the first bus；First bus prolongs
Stretch out positive power source terminal of the energy storage with unidirectional active equalization circuit；The double-end normal shock circuit 30 of the basis equalization unit 20
Negative pole connection end connects the second bus；Second bus extends negative supply of the energy storage with unidirectional active equalization circuit
End.
The basis equalization unit 20 also includes triggers circuit；The triggers circuit respectively with the switching tube Q1 second
Switch terminals and the switching tube Q2 second switch end connect.
Specifically, described switching tube Q1, Q2 are igbt；Described switching tube Q1, Q2 first switch end,
Second switch end and the 3rd switch terminals are respectively colelctor electrode, grid and emitter stage.
The high frequency transformer 40 includes primary side winding Np and some vice-side winding Ns；The primary side of the high frequency transformer 40
Winding Np Same Name of Ends is connected with the primary side connection end of the same name of the double-end normal shock circuit 30；The primary side of the high frequency transformer 40
Winding Np different name end is connected with the different name primary side connection end of the double-end normal shock circuit 30；Each pair of the high frequency transformer 40
Side winding Ns is connected with the single post-module 50 respectively.
Referring to Fig. 3, the regulation circuit 60 includes magnetic amplifier Nm, diode D3, D4, inductance L1 and electric capacity C2；Institute
State regulation circuit 60 and be provided with just secondary connection end, negative secondary connection end, positive charging end and negative charging end；The magnetic amplifier Nm's
Just secondary connection end of the one end as the regulation circuit 60；The sun of the other end of the magnetic amplifier Nm and the diode D3
Pole connects；The negative electrode of the diode D3 is connected with one end of the inductance L1；The negative electrode of the diode D3 is also with described two
Pole pipe D4 negative electrode connection；Negative secondary connection end of the anode of the diode D4 as the regulation circuit 60；The inductance
Positive charging end of the L1 other end as the regulation circuit 60；One end of the other end of the inductance L1 and the electric capacity C2 connects
Connect；The other end of the electric capacity C2 is connected with the anode of the diode D4；The other end of the electric capacity C2 is as the regulation
The negative charging end of circuit 60；One end of the magnetic amplifier Nm and the diode D4 anode respectively with the high frequency transformer
40 vice-side winding Ns Same Name of Ends and the connection of different name end.
The positive charging end and negative charging end of the regulation circuit 60 are as the energy storage with unidirectional active equalization circuit 10
Output end；The positive charging end and negative charging end of the regulation circuit 60 connect the positive pole of a battery in series battery and born respectively
Pole.
The feedback circuit 70 is provided with first input end, the second input and feedback end；The first of the feedback circuit 70
The both ends of input and the second input respectively with the electric capacity C2 are connected.
The control circuit 80 is provided with signal input part and switch member control terminal；The signal input part of the control circuit 80
It is connected with the feedback end of the feedback circuit 70；The switch member control terminal of the control circuit 80 and the anode of the diode D5
Connection；The negative electrode of the diode D5 is connected with the other end of the magnetic amplifier Nm.
In wherein a kind of embodiment, to strengthen filter effect, the electric capacity C2 is electrochemical capacitor；The electric capacity C2's
Positive pole connects the other end of the inductance L1；The negative pole of the electric capacity C2 connects the anode of the diode D4.
When the energy storage is worked with unidirectional active equalization circuit 10, the energy storage is with unidirectional active equalization circuit 10 from outer
Connect power supply and obtain electric energy input；The energy storage uses the open loop of double-end normal shock circuit 30 and institute with unidirectional active equalization circuit 10
State the control mode of the closed loop of post-module 50.
The energy storage can be with polytype electricity with each basis equalization unit 20 of unidirectional active equalization circuit 10
Pond connects；The energy storage is only connected together with each basis equalization unit 20 of unidirectional active equalization circuit 10 in the same time
A type of battery；The triggers circuit adjusts switching tube according to the battery types being connected with the basis equalization unit 20
The dutycycle of Q1, Q2 break-make, the double-end normal shock circuit 30 in the basis equalization unit 20 is set to work in adaptation respective class
On the open loop operating point of type battery behavior.
Synchronous working state, asynchronous work are can be between each regulation circuit 60 in the same basis equalization unit 20
Make state and off position；The basis equalization unit 20 can be that connected each batteries realize separate equilibrium
Management, to meet a variety of working condition needs.
The voltage x current information of the detectable battery being connected with the regulation circuit 60 of the feedback circuit 70 simultaneously judges electricity
The state in pond, and to the control circuit 80 feed back battery status information；When needing to make in the basis equalization unit 20
When part regulation circuit 60 is stopped, then by the corresponding control circuit 80 the corresponding magnetic amplifier Nm can be made to be in
Off state, you can make to adjust circuit 60 accordingly and be stopped, the regulation circuit 60 being stopped does not influence same institute
State the normal work of other adjustment circuits in basis equalization unit 20；When needing to make in the basis equalization unit 20
When part regulation circuit 60 carries out equalizaing charge to connected battery, then the corresponding control circuit 80 is according to feedback electricity
The feedback signal on road 70 and other adjustment signals, Setting signal is sent to the magnetic amplifier Nm by the diode D5, made
The magnetic amplifier Nm's is adjusted by electric current according to the amplitude of Setting signal, and the process is realized using the magnetic amplifier Nm
The closed loop of euqalizing current is adjusted.
The energy storage is only used for the relatively low situation of battery electric quantity with the directed energy flowing of unidirectional active equalization circuit 10, makes
The energy storage with unidirectional active equalization circuit 10 is simple and reliable for structure, cost is cheap and efficiency high, without secondary equalization problem；Institute
Larger euqalizing current can be provided for battery by stating magnetic amplifier Nm.
In the present embodiment, by the parallel connection of multiple basis equalization circuits, make the energy storage unidirectional active equalization electricity
The series battery that road compatible can be formed by all kinds battery, is embodied as the equalizaing charge of the type series battery, and carry
For the larger ability of equalization, reduce the management cost of series battery charge.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that the common skill for this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (9)
1. the unidirectional active equalization circuit of a kind of energy storage, it is characterised in that including some basis equalization units；The basis equalization
Unit includes double-end normal shock circuit, the high frequency transformer of the connection double-end normal shock circuit and some connection high frequency transformers
Post-module；The post-module includes regulation circuit, the feedback circuit of the connection regulation circuit, the connection feedback electricity
The control circuit and diode D5 on road；The energy storage is provided with positive power source terminal, negative power end and some with unidirectional active equalization circuit
Output end.
2. the unidirectional active equalization circuit of energy storage according to claim 1, it is characterised in that the double-end normal shock circuit bag
Include electric capacity C1, diode D1, diode D2 and switching tube Q1, switching tube Q2；The double-end normal shock circuit connects provided with positive pole
End, negative pole connection end, primary side connection end of the same name and different name primary side connection end；All double-end normal shock electricity of the basis equalization unit
The anode connection terminal on road is converged to form positive power source terminal of the energy storage with unidirectional active equalization circuit；All basis equalization lists
The negative pole connection end congruence of the double-end normal shock circuit of member closes to form negative power end of the energy storage with unidirectional active equalization circuit.
3. the unidirectional active equalization circuit of energy storage according to claim 2, it is characterised in that the switching tube Q1 and switch
Pipe Q2 is respectively equipped with first switch end, second switch end and the 3rd switch terminals；One end of the electric capacity C1 as the both-end just
The anode connection terminal of excitation circuit；One end of the electric capacity C1 is connected with the negative electrode of the diode D1；One end of the electric capacity C1
The first connection end also with the switching tube Q1 is connected；The 3rd switch terminals of the switching tube Q1 are as the double-end normal shock circuit
Primary side connection end of the same name, and be connected with the high frequency transformer；The 3rd switch terminals of the switching tube Q1 also with two pole
Pipe D2 negative electrode connection；Different name primary side connection end of the first switch end of the switching tube Q2 as the double-end normal shock circuit,
It is connected with the high frequency transformer；Anode of the first switch end of the switching tube Q2 also with the diode D1 is connected；It is described
Switching tube Q2 the 3rd switch terminals are connected with the other end of the electric capacity C1；The 3rd switch terminals of the switching tube Q2 also with it is described
Diode D2 anode connection.
4. the unidirectional active equalization circuit of energy storage according to claim 3, it is characterised in that the switching tube Q1, switch
Pipe Q2 is igbt；The switching tube Q1, switching tube Q2 first switch end, second switch end and the 3rd switch
End is respectively colelctor electrode, grid and emitter stage.
5. the unidirectional active equalization circuit of energy storage according to claim 3, it is characterised in that the high frequency transformer includes
Primary side winding Np and some vice-side winding Ns；The primary side winding Np of high frequency transformer Same Name of Ends and double-end normal shock electricity
The primary side connection end of the same name connection on road；The primary side winding Np of high frequency transformer different name end and the double-end normal shock circuit
Different name primary side connection end connects.
6. the unidirectional active equalization circuit of energy storage according to claim 1, it is characterised in that the high frequency transformer includes
Primary side winding Np and some vice-side winding Ns；The regulation circuit is provided with just secondary connection end and bears secondary connection end；The tune
The just secondary connection end on economize on electricity road and negative secondary connection end are connected with the Same Name of Ends of a vice-side winding Ns and different name end respectively.
7. the unidirectional active equalization circuit of energy storage according to claim 6, it is characterised in that the regulation circuit is provided with just
Charging end and negative charging end；The regulation circuit includes magnetic amplifier Nm, diode D3, D4, inductance L1 and electric capacity C2；The magnetic
Just secondary connection end of the amplifier Nm one end as the regulation circuit；The other end of the magnetic amplifier Nm and two pole
Pipe D3 anode connection；The negative electrode of the diode D3 is connected with one end of the inductance L1；The negative electrode of the diode D3 is also
It is connected with the negative electrode of the diode D4；Negative secondary connection end of the anode of the diode D4 as the regulation circuit；Institute
State positive charging end of the inductance L1 other end as the regulation circuit；The other end of the inductance L1 and the one of the electric capacity C2
End connection；The other end of the electric capacity C2 is connected with the anode of the diode D4；Described in the other end of the electric capacity C2 is used as
Adjust the negative charging end of circuit；One end of the magnetic amplifier Nm and the diode D4 anode respectively with the high frequency transformation
The one vice-side winding Ns of device Same Name of Ends and the connection of different name end；The positive charging end of the regulation circuit and negative charging end conduct
The output end of the unidirectional active equalization circuit of the energy storage；
The positive pole of the electric capacity C2 connects the other end of the inductance L1；The negative pole of the electric capacity C2 connects the diode D4's
Anode.
8. the unidirectional active equalization circuit of energy storage according to claim 7, it is characterised in that the feedback circuit is provided with the
One input, the second input and feedback end；The first input end of the feedback circuit and the second input respectively with the electricity
Hold C2 both ends connection.
9. the unidirectional active equalization circuit of energy storage according to claim 8, it is characterised in that the control circuit is provided with letter
Number input and switch member control terminal；The signal input part of the control circuit is connected with the feedback end of the feedback circuit；Institute
The switch member control terminal for stating control circuit is connected with the anode of the diode D5；The negative electrode of the diode D5 is put with the magnetic
Big device Nm other end connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720477417.6U CN206790155U (en) | 2017-04-28 | 2017-04-28 | The unidirectional active equalization circuit of energy storage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720477417.6U CN206790155U (en) | 2017-04-28 | 2017-04-28 | The unidirectional active equalization circuit of energy storage |
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| CN206790155U true CN206790155U (en) | 2017-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911167A (en) * | 2017-04-28 | 2017-06-30 | 易事特集团股份有限公司 | The unidirectional active equalization circuit of energy storage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911167A (en) * | 2017-04-28 | 2017-06-30 | 易事特集团股份有限公司 | The unidirectional active equalization circuit of energy storage |
| CN106911167B (en) * | 2017-04-28 | 2024-01-30 | 易事特集团股份有限公司 | Unidirectional active equalization circuit for energy storage |
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