CN107069876A - The unidirectional active equalization circuit of energy storage - Google Patents
The unidirectional active equalization circuit of energy storage Download PDFInfo
- Publication number
- CN107069876A CN107069876A CN201710300199.3A CN201710300199A CN107069876A CN 107069876 A CN107069876 A CN 107069876A CN 201710300199 A CN201710300199 A CN 201710300199A CN 107069876 A CN107069876 A CN 107069876A
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- energy storage
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- 238000004146 energy storage Methods 0.000 title claims abstract description 50
- 238000004804 winding Methods 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 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
- H02J7/0016—Circuits for equalisation of charge between batteries using shunting, discharge or bypass circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A kind of unidirectional active equalization circuit of energy storage, the charging process for managing battery, it is characterised in that including some basis equalization units；The basis equalization unit includes the post-module of prime half-bridge circuit, the high frequency transformer of the connection prime half-bridge circuit and some connections high frequency transformer；The post-module includes regulation circuit, the feedback circuit of the connection regulation circuit, the control circuit and diode D6, D7 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.Energy storage parallel connection of the unidirectional active equalization circuit by multiple basis equalization circuits of the present invention, the series battery for enabling the energy storage to be formed with unidirectional active equalization circuit compatibility by all kinds battery, it is embodied as the equalizaing charge of the type series battery, and the larger ability of equalization is provided, reduce the management cost of series battery charge.
Description
Technical field
The present invention relates to battery management, more particularly to a kind of unidirectional active equalization circuit of energy storage.
Background technology
In energy storage field, battery general relatively large total voltage of acquisition that is concatenated in output carrys out driving load.
And in the charging process of battery, need to ensure that carrying out equilibrium to each battery of series connection fully charges, and can not make in charging
After the completion of wherein there is excessive difference between the charged state and integral level of Individual cells, if charging complete is indivedual in series connection
Charged state on battery is far below overall charged state level, then the exportable capacity of series-connected cell can be reduced to low
The capacity of the battery of charged state is general at present to make the battery of series connection keep close during charging using equalizing circuit
Charged state.
Battery types are more used in stored energy application, for example, 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 a certain class battery.And the capacity of the battery unit of battery pack is larger, traditional equalizing circuit can not provide enough equal
Weigh electric current.
The content of the invention
Based on this, the present invention provides a kind of energy and supports a variety of battery types and have the energy storage of the larger ability of equalization single
To active equalization circuit.
In order to realize the purpose of the present invention, the present invention 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 prime half-bridge circuit, the high frequency transformer of the connection prime half-bridge circuit and some connections high frequency transformation
The post-module of device；The post-module includes regulation circuit, the feedback circuit of the connection regulation circuit, connects the feedback
Control circuit and diode D6, the diode D7 of circuit；The energy storage is provided with positive power source terminal with unidirectional active equalization circuit, born
Power end and some output ends.
Energy storage parallel connection of the unidirectional active equalization circuit by multiple basis equalization circuits of the present invention, makes the storage
The battery pack of different battery core serial numbers can be adapted to unidirectional active equalization circuit, the equilibrium of the type series battery is embodied as
Charging, and the larger ability of equalization is provided, reduce the management cost of series battery charge.Because employing with unidirectional active
Equalizing circuit and magnetic amplifier rear class adjustment circuit, the operating point of whole equalizing circuit are very wide, therefore can compatible polytype
Battery.
In one of the embodiments, the prime half-bridge circuit includes electric capacity C1, electric capacity C2, electric capacity C3, and switching tube
Q1, switching tube Q2；The prime half-bridge circuit is former provided with anode connection terminal, negative pole connection end, primary side connection end of the same name and different name
Side connection end；The anode connection terminal of the prime half-bridge circuit of all basis equalization units is converged to form the energy storage with unidirectionally
The positive power source terminal of active equalization circuit；The negative pole connection end congruence of the prime half-bridge circuit of all basis equalization units closes shape
Into negative power end of the energy storage with unidirectional active equalization circuit.
In one of the embodiments, the switching tube Q1, switching tube Q2 are respectively equipped with first switch end, second switch end
And the 3rd switch terminals；One end of the electric capacity C1 as the prime half-bridge circuit anode connection terminal；The one of the electric capacity C1
End is connected with the first connection end of the switching tube Q1；The 3rd switch terminals of the switching tube Q1 are used as the prime half-bridge 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 the switch
Pipe Q2 first switch end connection；The other end of the electric capacity C1 is connected with one end of the electric capacity C2；The electric capacity C1's is another
The one end of one end also with the electric capacity C3 is connected；The other end of the electric capacity C2 is connected as the negative pole of the prime half-bridge circuit
End；The other end of the electric capacity C2 is connected with the 3rd switch terminals of the switching tube Q2；The other end of the electric capacity C3 is used as institute
The different name primary side connection end of prime half-bridge circuit is stated, is connected with the high frequency transformer.
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；It is described
Switching tube Q1, switching tube Q2 internal parallels have internal diode；The switching tube Q1, switching tube Q2 internal diode negative electrode
It is connected with its colelctor electrode；The switching tube Q1, the anode of switching tube Q2 internal diode are connected with its 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 prime half-bridge 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 prime half-bridge circuit.
In one of the embodiments, the high frequency transformer includes primary side winding Np and some vice-side winding Ns；It is described
The vice-side winding Ns of high frequency transformer is provided with centre tap；The regulation circuit is provided with just secondary connection end, negative secondary connection end
And node connection；The just secondary connection end of the regulation circuit, bear secondary connection end and node connection respectively with described in one
Vice-side winding Ns Same Name of Ends, the connection of different name end and centre tap connection.
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 Nm1, magnetic amplifier Nm2, diode D3, diode D4, inductance L1 and electric capacity C2；The magnetic amplifier Nm1's
One end is used as the just secondary connection end for adjusting circuit；The sun of the other end of the magnetic amplifier Nm1 and the diode D3
Pole is connected；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；The anode of the diode D4 is used as the node connection for adjusting circuit；The inductance L1's
The other end is used as the positive charging end for adjusting circuit；The other end of the inductance L1 is connected with one end of the electric capacity C4；Institute
The other end for stating electric capacity C4 is connected with the anode of the diode D4；The other end of the electric capacity C4 is used as the regulation circuit
Negative charging end；One end of the magnetic amplifier Nm2 is used as the negative secondary connection end for adjusting circuit；The magnetic amplifier Nm2
The other end be connected with the anode of the diode D5；The negative electrode of the diode D5 is connected with the negative electrode of the diode D3；
The anode of one end of the magnetic amplifier Nm1, one end of the magnetic amplifier Nm2 and the diode D4 respectively with the high frequency
Vice-side winding Ns Same Name of Ends, different name end and centre tap connection described in the one of transformer；
The positive pole of the electric capacity C4 connects the other end of the inductance L1；The negative pole of the electric capacity C4 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 two ends of the first input end of feedback circuit and the second input respectively with the electric capacity C4 are connected.
In one of the embodiments, the control circuit is provided with first switch part control end, second switch part control end
And signal input part；The signal input part of the control circuit is connected with the feedback end of the feedback circuit；The control circuit
First switch part control end be connected with the anode of the diode D6；The negative electrode of the diode D6 and the magnetic amplifier
Nm1 other end connection；The second switch part control end of the control circuit is connected with the anode of the diode D7；Described two
Pole pipe D7 negative electrode is connected with the other end of the magnetic amplifier Nm2.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the unidirectional active equalization circuit of energy storage of the preferred embodiment of the present invention；
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 be Fig. 2 shown in basis equalization unit in post-module circuit diagram.
Embodiment
For the ease of understanding the present invention, the present invention will be described more fully below.But, the present invention can be with perhaps
More different form is realized, however it is not limited to embodiment described herein.On the contrary, the purpose for providing these embodiments is to make
Understanding to the disclosure is more thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Refer to Fig. 1 to Fig. 3, be a better embodiment of the invention energy storage with unidirectional active equalization circuit 10, be used for
The charging process of battery is managed, the energy storage is by various batteries using the electric energy of external power supply with unidirectional active equalization circuit 10
The series battery charge that series connection is formed；The energy storage can make series battery in the mistake of charging with unidirectional active equalization circuit 10
Cheng Zhong, each batteries keep close charged state.The energy storage includes some basis equalization lists with unidirectional active equalization circuit 10
Member 20；The basis equalization unit 20 includes prime half-bridge circuit 30, the high frequency transformer of the connection prime half-bridge circuit 30
40 and the post-module 50 of some connections high frequency transformer 40；The post-module 50 includes regulation circuit 60, connection institute
State feedback circuit 70, the control circuit 80 and diode D6, D7 of the connection feedback circuit 60 of 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 energy storage unidirectionally active
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 prime half-bridge circuit 30 includes electric capacity C1, C2, C3, and switching tube Q1, Q2；The prime half
Bridge 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；It is all described basic
The anode connection terminal of the prime half-bridge circuit 30 of balanced unit 20 to form the unidirectional active equalization circuit of the energy storage by converging
10 positive power source terminal；All the negative pole connection end of the prime half-bridge circuit 30 of the basis equalization unit 20 is converged to form the storage
The negative power end of the unidirectional active equalization circuit 10 of energy；Described switching tube Q1, Q2 are respectively equipped with first switch end, second switch end
And the 3rd switch terminals；One end of the electric capacity C1 as the prime half-bridge circuit 30 anode connection terminal；The electric capacity C1's
One end is connected with the first connection end of the switching tube Q1；The 3rd switch terminals of the switching tube Q1 are used as prime half-bridge electricity
The primary side connection end of the same name on road 30, and be connected with the high frequency transformer 40；The 3rd switch terminals of the switching tube Q1 also with institute
State switching tube Q2 first switch end connection；The other end of the electric capacity C1 is connected with one end of the electric capacity C2；The electric capacity
The one end of the C1 other end also with the electric capacity C3 is connected；The other end of the electric capacity C2 is used as the prime half-bridge circuit 30
Negative pole connection end；The other end of the electric capacity C2 is connected with the 3rd switch terminals of the switching tube Q2；The electric capacity C3's is another
The different name primary side connection end as the prime half-bridge circuit 30 is held, is connected with the high frequency transformer 40.
In wherein a kind of embodiment, the energy storage is interior female provided with the first bus and second with unidirectional active equalization circuit
Line；All the anode connection terminal of the prime half-bridge circuit 30 of the basis equalization unit 20 connects first bus；Described
One bus extends positive power source terminal of the energy storage with unidirectional active equalization circuit；The prime of whole basis equalization units 20
The negative pole connection end of half-bridge circuit 30 connects second bus；It is equal with unidirectional active that second bus extends the energy storage
The negative power end of weighing apparatus circuit.
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 connection.
Specifically, described switching tube Q1, Q2 are igbt；Switching tube Q1, Q2 internal parallel has body
Interior diode；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 negative electrode of described switching tube Q1, Q2 internal diode is connected with its colelctor electrode；Described switching tube Q1, Q2 body
The anode of interior diode is connected with its 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 prime half-bridge 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 prime half-bridge circuit 30；The secondary of the high frequency transformer 40
Winding Ns is provided with centre tap；Each vice-side winding Ns of the high frequency transformer 40 connects with the single post-module 50 respectively
Connect.
Referring to Fig. 3, the regulation circuit 60 includes magnetic amplifier Nm1, Nm2, diode D3, D4, D5, inductance L1 and electricity
Hold C4；The regulation circuit 60 is provided with just secondary connection end, negative secondary connection end, node connection, positive charging end and negative charging
End；One end of the magnetic amplifier Nm1 is used as the just secondary connection end for adjusting circuit 60；The magnetic amplifier Nm1's is another
One end is connected with the anode of the diode D3；The negative electrode of the diode D3 is connected with one end of the inductance L1；Described two
Negative electrode of the pole pipe D3 negative electrode also with the diode D4 is connected；The anode of the diode D4 is used as the regulation circuit 60
Node connection；The other end of the inductance L1 is used as the positive charging end for adjusting circuit 60；The other end of the inductance L1
It is connected with one end of the electric capacity C4；The other end of the electric capacity C4 is connected with the anode of the diode D4；The electric capacity C4
The other end be used as it is described regulation circuit 60 negative charging end；One end of the magnetic amplifier Nm2 is used as the regulation circuit 60
Negative secondary connection end；The other end of the magnetic amplifier Nm2 is connected with the anode of the diode D5；The diode D5's
Negative electrode is connected with the negative electrode of the diode D3；One end of the magnetic amplifier Nm1, one end of the magnetic amplifier Nm2 and institute
State diode D4 anode respectively with vice-side winding Ns Same Name of Ends, different name end and centre described in the one of the high frequency transformer 40
Tap is connected.
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 in series battery the positive pole of a battery and negative 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 two ends of input and the second input respectively with the electric capacity C2 are connected.
The control circuit 80 is provided with first switch part control end, second switch part control end and signal input part；It is described
The signal input part of control circuit 80 is connected with the feedback end of the feedback circuit 70；The first switch part of the control circuit 80
Control end is connected with the anode of the diode D6；The other end of the negative electrode of the diode D6 and the magnetic amplifier Nm1 connects
Connect；The second switch part control end of the control circuit 80 is connected with the anode of the diode D7；The moon of the diode D7
Pole is connected with the other end of the magnetic amplifier Nm2.
In wherein a kind of embodiment, to strengthen filter effect, the electric capacity C4 is electrochemical capacitor；The electric capacity C4's
Positive pole connects the other end of the inductance L1；The negative pole of the electric capacity C4 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 prime half-bridge 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 described basis equalization unit 20 of unidirectional active equalization circuit 10
Pond is connected；The energy storage is only connected together with each described basis equalization unit 20 of unidirectional active equalization circuit 10 in the same time
A type of battery；The triggers circuit adjusts the switch according to the battery types being connected with the basis equalization unit 20
The dutycycle of pipe Q1, Q2 break-make, makes the prime half-bridge circuit 30 in the basis equalization unit 20 work in adaptation corresponding
On the open loop operating point of type cell characteristic.
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 realize separate equilibrium for connected each batteries
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 it is described control circuit 80 feed back battery status information；When needing to make in the basis equalization unit 20
Part regulation circuit 60 can be made when being stopped, then by the corresponding control circuit 80 the corresponding magnetic amplifier Nm1,
Nm2 is off state, you can makes to adjust circuit 60 accordingly and is stopped, and the adjustment circuit being stopped does not influence together
The normal work of other regulation circuits 60 in basis equalization unit 20 described in one；When needing to make the basis equalization unit
It is when part regulation circuit 60 in 20 carries out equalizaing charge to connected battery, then described accordingly to control the basis of circuit 80
The feedback signal of feedback circuit 70 and other adjustment signals, are amplified to the magnetic respectively by the diode D6, diode D7
Device Nm1 and magnetic amplifier Nm2 send Setting signal, make described magnetic amplifier Nm1, Num2 by electric current according to Setting signal
Amplitude and adjust, the process is realized to the regulation of the closed loop of euqalizing current using described magnetic amplifier Nm1, Num2.
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, with low cost and efficiency high, without secondary equalization problem；Institute
Larger euqalizing current can be provided for battery by stating magnetic amplifier Nm1, Num2.
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, the management cost of series battery charge is reduced.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention 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 prime half-bridge circuit, the high frequency transformer and some connections high frequency transformer of the connection prime half-bridge circuit
Post-module；The post-module includes regulation circuit, the feedback circuit of the connection regulation circuit, connects the feedback electricity
Control circuit and diode D6, the diode D7 on road；The energy storage is provided with positive power source terminal, negative electricity with unidirectional active equalization circuit
Source and some output ends.
2. the unidirectional active equalization circuit of energy storage according to claim 1, it is characterised in that the prime half-bridge circuit bag
Include electric capacity C1, electric capacity C2, electric capacity C3, and switching tube Q1, switching tube Q2；The prime half-bridge circuit is provided with anode connection terminal, born
Pole connection end, primary side connection end of the same name and different name primary side connection end；The prime half-bridge circuit of all basis equalization units
Anode connection terminal converges the positive power source terminal to form the energy storage with unidirectional active equalization circuit；All basis equalization units
The negative pole connection end congruence of prime half-bridge circuit closes the negative power end to form 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, 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 is used as the prime half
The anode connection terminal of bridge circuit；One end of the electric capacity C1 is connected with the first connection end of the switching tube Q1；The switching tube
Q1 the 3rd switch terminals and are connected as the primary side connection end of the same name of the prime half-bridge circuit with the high frequency transformer；Institute
First switch end of switching tube Q1 the 3rd switch terminals also with the switching tube Q2 is stated to be connected；The other end of the electric capacity C1 and institute
State electric capacity C2 one end connection；The one end of the other end of the electric capacity C1 also with the electric capacity C3 is connected；The electric capacity C2's is another
One end as the prime half-bridge circuit negative pole connection end；The other end of the electric capacity C2 is opened with the 3rd of the switching tube Q2
Guan Duan connections；The other end of the electric capacity C3 becomes as the different name primary side connection end of the prime half-bridge circuit with the high frequency
Depressor is connected.
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；The switching tube Q1, switching tube Q2 internal parallels have internal diode；It is described to open
Pipe Q1, the negative electrode of switching tube Q2 internal diode is closed to be connected with its colelctor electrode；Internal the two of the switching tube Q1, switching tube Q2
The anode of pole pipe is connected with its 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 prime half-bridge 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 prime half-bridge circuit
Different name primary side connection end is connected.
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 vice-side winding Ns of the high frequency transformer is provided with centre tap；The regulation electricity
Road is provided with just secondary connection end, negative secondary connection end and node connection；It is the just secondary connection end of the regulation circuit, negative secondary
Connection end and node connection are connected and centre tap connection with vice-side winding Ns Same Name of Ends, different name end described in one 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 Nm1, magnetic amplifier Nm2, diode D3, diode D4, electricity
Feel L1 and electric capacity C2；One end of the magnetic amplifier Nm1 is used as the just secondary connection end for adjusting circuit；The magnetic amplifier
The Nm1 other end is connected with the anode of the diode D3；The negative electrode of the diode D3 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；The anode of the diode D4 is used as the regulation electricity
The node connection on road；The other end of the inductance L1 is used as the positive charging end for adjusting circuit；The inductance L1's is another
End is connected with one end of the electric capacity C4；The other end of the electric capacity C4 is connected with the anode of the diode D4；The electric capacity
The C4 other end is used as the negative charging end for adjusting circuit；One end of the magnetic amplifier Nm2 is used as the regulation circuit
Bear secondary connection end；The other end of the magnetic amplifier Nm2 is connected with the anode of the diode D5；The moon of the diode D5
Pole is connected with the negative electrode of the diode D3；One end of the magnetic amplifier Nm1, one end of the magnetic amplifier Nm2 and described
Diode D4 anode respectively with vice-side winding Ns Same Name of Ends, different name end and centre tap described in the one of the high frequency transformer
Connection；
The positive pole of the electric capacity C4 connects the other end of the inductance L1；The negative pole of the electric capacity C4 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 C4 two 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 the
One switch member control end, second switch part control end and signal input part；The signal input part of the control circuit with it is described anti-
The feedback end connection of current feed circuit；The first switch part control end of the control circuit is connected with the anode of the diode D6；Institute
The negative electrode for stating diode D6 is connected with the other end of the magnetic amplifier Nm1；The second switch part control end of the control circuit
It is connected with the anode of the diode D7；The negative electrode of the diode D7 is connected with the other end of the magnetic amplifier Nm2.
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