CN208001236U - A kind of high-voltage bidirectional DC transfer circuit - Google Patents
A kind of high-voltage bidirectional DC transfer circuit Download PDFInfo
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- CN208001236U CN208001236U CN201820326391.XU CN201820326391U CN208001236U CN 208001236 U CN208001236 U CN 208001236U CN 201820326391 U CN201820326391 U CN 201820326391U CN 208001236 U CN208001236 U CN 208001236U
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Abstract
The utility model provides a kind of high-voltage bidirectional DC transfer circuit.The circuit includes at least one first sub- translation circuit, at least one second sub- translation circuit and at least one controller;The rear end serial or parallel connection of the front end of the first sub- translation circuit and the rear end and the described second sub- translation circuit of the front end serial or parallel connection of the described second sub- translation circuit and/or the first sub- translation circuit;The front-end and back-end of the first sub- translation circuit, the second sub- translation circuit front-end and back-end for being connect with the DC side for having bi-directional capability;The primary side resonant transform circuit and the secondary side translation circuit are provided with the function of inversion and rectification;The controller is used to control opening sequential and the described first sub- translation circuit and the second sub- translation circuit being made to work in same-phase pattern or misphase bit pattern for the described first sub- translation circuit and the second sub- translation circuit forward or backwards.The utility model is adapted to different port voltage.
Description
Technical field
The utility model is related to DC-dc conversion field, more particularly to a kind of high-voltage bidirectional DC transfer circuit.
Background technology
With the fast development of energy storaging product and battery apparatus related field, the application of DC transfer circuit is more and more wider
It is general, but existing DC transfer circuit does not adapt to different port voltage scene, causes using limitation.
Utility model content
Purpose of the utility model is to solve DC transfer circuits in the prior art not to adapt to different port electricity
Have a meeting, an audience, etc. well under one's control scape the problem of, propose a kind of high-voltage bidirectional DC transfer circuit.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of high-voltage bidirectional DC transfer circuit, including at least one first sub- translation circuit, at least one second son become
Change circuit and at least one controller;It connects with the front end of the described second sub- translation circuit the front end of the first sub- translation circuit
Or the rear end serial or parallel connection of the rear end and the described second sub- translation circuit of the in parallel and/or described first sub- translation circuit;It is described
The front-end and back-end of first sub- translation circuit, the second sub- translation circuit front-end and back-end be used for and have bi-directional capability
DC side connects;The first sub- translation circuit and the second sub- translation circuit include sequentially connected primary side filtered electrical
Appearance, primary side resonant transform circuit, isolating transformer, the secondary filter capacitor in translation circuit and pair;The primary side resonant transformation electricity
Road and the secondary side translation circuit are provided with the function of inversion and rectification;The controller for controlling described the forward or backwards
One sub- translation circuit and the second sub- translation circuit open sequential and make the described first sub- translation circuit and described second
Sub- translation circuit works in same-phase pattern or misphase bit pattern.
In some preferred embodiments, the primary side resonant transform circuit is series resonance translation circuit, the original
The circuit form of side resonant transform circuit includes half bridge circuit and full bridge circuit.
In some preferred embodiments, the secondary side translation circuit realize the mode of rectification include full-bridge rectification, times
Repoussage stream and full-wave rectification.
In some preferred embodiments, the misphase phase of the misphase bit pattern includes 1/ (2N) a periods or 1/
4 periods, N indicate the number of sub- translation circuit.
In some preferred embodiments, the DC side is the power supply, circuit or load for having bi-directional capability.
In further preferred embodiment, the DC side includes DC power supply, battery and AC inverter circuit.
In some preferred embodiments, the isolating transformer is high-frequency isolation transformer.
In some preferred embodiments, the primary side resonant transform circuit includes primary side driving circuit and primary side switch
Converter unit, the primary side driving circuit is for driving the primary side switch converter unit.
In further preferred embodiment, the main element of the primary side switch converter unit is HF switch pipe,
The HF switch pipe has the diode of reverse parallel connection.
In some preferred embodiments, the number of the sub- translation circuit is three, four or five or more.
Compared with prior art, the beneficial effects of the utility model have:
The front end serial or parallel connection of the front end of first sub- translation circuit and the second sub- translation circuit, the first sub- translation circuit
The rear end serial or parallel connection of rear end and the second sub- translation circuit, multiple sub- translation circuits, which link together, broadens translation circuit pair
The accommodation of input voltage also broadens the range of output voltage so as to adapt to different port voltage.
Primary side resonant transform circuit and secondary side translation circuit are provided with the function of inversion and rectification, and DC side has two-way energy
Power, control the first sub- translation circuit and the second sub- translation circuit forward or backwards by controller opens sequential, may be implemented
The two-way changing of electric energy, that is, electric energy both can be transferred to secondary side from the primary side of transformer, can also be from the secondary side of transformer
It is transferred to primary side, meets the needs of different occasions.
It, can be in addition, make the first sub- translation circuit and the second sub- translation circuit work in misphase bit pattern by controller
Make the ripple voltage frequency multiplication on the filter capacitor of output end, to make high-frequency current ripple smaller.
Description of the drawings
Fig. 1 shows the circuit structure of the first sub- translation circuit of the utility model;
Fig. 2 shows the circuit structures of the second sub- translation circuit of the utility model;
Fig. 3 shows the first circuit structure of the high-voltage bidirectional DC transfer circuit of the utility model;
Fig. 4 shows second of circuit structure of the high-voltage bidirectional DC transfer circuit of the utility model;
Fig. 5 shows the third circuit structure of the high-voltage bidirectional DC transfer circuit of the utility model;
Fig. 6 shows the 4th kind of circuit structure of the high-voltage bidirectional DC transfer circuit of the utility model;
Fig. 7 shows the concrete structure of the circuit of Fig. 3;
When Fig. 8 shows the driving for working in positive same-phase pattern of the high-voltage bidirectional DC transfer circuit of the utility model
Sequence figure;
When Fig. 9 shows the driving for working in positive misphase bit pattern of the high-voltage bidirectional DC transfer circuit of the utility model
Sequence figure;
Figure 10 shows the driving for working in reversed same-phase pattern of the high-voltage bidirectional DC transfer circuit of the utility model
Sequence diagram;
Figure 11 shows the driving for working in reversed misphase bit pattern of the high-voltage bidirectional DC transfer circuit of the utility model
Sequence diagram;
Figure 12 shows the circuit structure of the first variant of the utility model;
Figure 13 shows the circuit structure of second of variant of the utility model;
Figure 14 shows the circuit structure of the third variant of the utility model;
Figure 15 shows the circuit structure of the 4th kind of variant of the utility model;
Figure 16 shows the circuit structure of the 5th kind of variant of the utility model;
Figure 17 shows the circuit structure of the 6th kind of variant of the utility model.
Specific implementation mode
It elaborates below to the embodiment of the utility model.It is emphasized that following the description is only example
Property, rather than in order to limit the scope of the utility model and its application.
Referring to figs. 1 to Fig. 6, high-voltage bidirectional DC transfer circuit includes at least one first sub- translation circuit 100, at least one
A second sub- translation circuit 200 and at least one controller 300.
With reference to figure 3 to Fig. 6, the front end 11 of the first sub- translation circuit 100 is connected with the front end 21 of the second sub- translation circuit 200
Or the in parallel and/or rear end 12 of the first sub- translation circuit 100 and 22 serial or parallel connection of rear end of the second sub- translation circuit 200.The
The front end 11 and rear end 12 of one sub- translation circuit 100, the front end 21 of the second sub- translation circuit 200 and rear end 22 be used for have it is double
It is connected to the DC side of ability, the load of DC side i.e. translation circuit, DC side includes that primary side DC side V1A and secondary side are straight
Flow side V2A.
With reference to figure 1 and Fig. 2, the first sub- translation circuit 100 and the second sub- translation circuit 200 include sequentially connected primary side
Filter capacitor, primary side resonant transform circuit, isolating transformer, the secondary filter capacitor in translation circuit and pair, primary side filter capacitor
For the front-end filtering for sub- translation circuit, secondary side filter capacitor is used to filter for the rear end of sub- translation circuit, primary side filtered electrical
It is high-voltage energy storage filter capacitor to hold, and can also select common filter capacitor according to actual needs;Primary side resonant transform circuit includes
First primary side resonant transform circuit 110 and the second primary side resonant transform circuit 210;It is secondary to be converted when translation circuit includes first secondary
Circuit 120 and the second secondary side translation circuit 220.Specifically, with reference to figure 1 and Fig. 2, the first sub- translation circuit 100 includes first
Isolating transformer TRAAnd the first isolating transformer TRAPrimary side both ends connection the first primary side resonant transform circuit 110, with
First isolating transformer TRAIt is secondary while both ends connection first it is secondary while translation circuit 120, with the first primary side resonant transform circuit
First primary side filter capacitor C1a of 110 connections and with filter capacitor when first secondary the first pair connect in translation circuit 120
C2a, the second sub- translation circuit 2 include the second isolating transformer TRBAnd the second isolating transformer TRBPrimary side both ends connection
Second primary side resonant transform circuit 210 and the second isolating transformer TRBIt is secondary while both ends connection second it is secondary while translation circuit
220, the second primary side filter capacitor C1b for being connect with the second primary side resonant transform circuit 210 and with the second secondary side translation circuit
Second pair side filter capacitor C2b of 220 connections.First isolating transformer TRAWith the second isolating transformer TRBIt is high-frequency isolation
Transformer, high-frequency isolation transformer it is small, due to being high frequency, thus can be used in the higher circuit of switching frequency in, from
And reduce output voltage ripple, certainly, common isolating transformer can also be selected according to actual needs.
To realize the two-way changing of electric energy, primary side resonant transform circuit and secondary side translation circuit are provided with inversion and rectification
Function.
Controller 300 for controlling the open-minded of the first sub- translation circuit 100 and the second sub- translation circuit 200 forward or backwards
Sequential and the first sub- translation circuit 100 and the second sub- translation circuit 200 is made to work in same-phase pattern or misphase bit pattern.It is wrong
The misphase phase of phase pattern includes that 1/ (2N) a periods or 1/4 period, N indicate the number of sub- translation circuit, certainly, root
Other phases can also be set according to actual needs, the utility model is not limited.
The high-voltage bidirectional DC transfer circuit of the utility model includes following form:With reference to figure 3, the first sub- translation circuit
100 front end 11 is connected with the front end 21 of the second sub- translation circuit 200, and the rear end 12 and second of the first sub- translation circuit 100
It connects the rear end 22 of sub- translation circuit 200;With reference to figure 4, the front end 11 of the first sub- translation circuit 100 and the second sub- translation circuit
200 front end 21 is connected, and the rear end 12 of the first sub- translation circuit 100 is in parallel with the rear end 22 of the second sub- translation circuit 200;Ginseng
Fig. 5 is examined, the front end 11 of the first sub- translation circuit 100 is in parallel with the front end 21 of the second sub- translation circuit 200, and the first son transformation electricity
It connects with the rear end 22 of the second sub- translation circuit 200 rear end 12 on road 100;With reference to figure 6, the front end of the first sub- translation circuit 100
11 is in parallel with the front end 21 of the second sub- translation circuit 200, and the rear end 12 of the first sub- translation circuit 100 and the second sub- translation circuit
200 rear end 22 is in parallel.
As described above, the front end 11 of the first sub- translation circuit 100 is connected with the front end 21 of the second sub- translation circuit 200
Or in parallel, 22 serial or parallel connection of rear end of the rear end 12 of the first sub- translation circuit 100 and the second sub- translation circuit 200, Duo Gezi
Translation circuit links together the accommodation for broadening translation circuit to input voltage, so as to adapt to different port electricity
Pressure, also broadens the range of output voltage.
Primary side resonant transform circuit and secondary side translation circuit are provided with the function of inversion and rectification, and DC side has two-way energy
Power, control the first sub- translation circuit 100 and the second sub- translation circuit 200 forward or backwards by controller 300 opens sequential,
The two-way changing of electric energy may be implemented, that is, electric energy both can be transferred to secondary side from the primary side of transformer, it can also be from transformation
The secondary side of device is transferred to primary side, meets the needs of different occasions.
In addition, 21 serial or parallel connection of front end of the front end 11 of the first sub- translation circuit 100 and the second sub- translation circuit 200,
22 serial or parallel connection of rear end of the rear end 12 of first sub- translation circuit 100 and the second sub- translation circuit 200, passes through controller 300
So that the first sub- translation circuit 100 and the second sub- translation circuit 200 is worked in misphase bit pattern, the filter capacitor of output end can be made
On ripple voltage frequency multiplication, to make high-frequency current ripple smaller.
It elaborates below to the utility model by taking Fig. 7 as an example:
With reference to figure 7, the quantity of the first sub- translation circuit 100 and the second sub- translation circuit 200 is one.First son transformation
The front end 11 of circuit 100 is connect after connecting with the front end 21 of the second sub- translation circuit 200 with the both ends of primary side DC side V1A, the
Both ends with secondary side DC side V2A after the rear end 12 of one sub- translation circuit 100 is connected with the rear end 22 of the second sub- translation circuit 200
Connection.
Specifically, the both ends at the both ends of the side of the first primary side resonant transform circuit 110 and the first primary side filter capacitor C1a
Connection, the both ends of the other side of the first primary side resonant transform circuit 110 and the first isolating transformer TRAPrimary side both ends connection;
The both ends of the side of second primary side resonant transform circuit 210 are connect with the both ends of the second primary side filter capacitor C1b, and the second primary side is humorous
Shake translation circuit 210 the other side both ends and the second isolating transformer TRBPrimary side both ends connection;First secondary side transformation electricity
The both ends of the side on road 120 and the first isolating transformer TRASecondary side both ends connection, the first secondary side translation circuit 120 it is another
The both ends of side are connect with the both ends of the first pair side filter capacitor C2a, the both ends and second of the side of the second secondary side translation circuit 220
Isolating transformer TRBSecondary side both ends connection, the second secondary both ends in the other side of translation circuit 220 and second it is secondary while filter
The both ends of capacitance C2b connect.
To realize that DC-dc conversion function, the first primary side resonant transform circuit 110 have the function of inversion and rectification,
First secondary side translation circuit 120 also has the function of inversion and rectification, correspondingly, the second primary side resonant transform circuit 210 has
The function of inversion and rectification, the second secondary side translation circuit 220 then also have the function of inversion and rectification.
The circuit structure of Fig. 7 is described further:
With reference to figure 7, the first primary side resonant transform circuit 110 and the second primary side resonant transform circuit 210 are half bridge circuits.
With reference to figure 7, the first primary side resonant transform circuit 110 is series resonance translation circuit, including the first primary side driving electricity
Road 111 and the first primary side switch converter unit 112, the first primary side driving circuit 111 are single for driving the transformation of the first primary side switch
Member 112.To have the function of inversion and rectification, the main element of the first primary side switch converter unit 112 is HF switch pipe, and
HF switch pipe has the diode of reverse parallel connection and is protected with being formed to itself, is HF switch pipe Q3A and HF switch respectively
Pipe Q4A.First primary side resonant transform circuit 110 further includes the first resonant capacitance Cr2a, the first resonant capacitance Cr1a and first humorous
Shake inductance Lra, the drain electrode of the source electrode of HF switch pipe Q3A connection HF switch pipe Q4A, one end of the first resonant capacitance Cr1a with
One end of first resonant capacitance Cr2a connects, and the drain electrode of HF switch pipe Q3A is connect with the other end of the first resonant capacitance Cr2a,
The source electrode of HF switch pipe Q4A is connect with the other end of the first resonant capacitance Cr1a, the first isolating transformer TRAPrimary side one
End 4A is connected to the intermediate point of HF switch pipe Q3A and HF switch pipe Q4A by the first resonant inductance Lra, and the first isolation becomes
Depressor TRAThe other end 5A of primary side connect with the first resonant capacitance Cr1a with the intermediate point of the first resonant capacitance Cr2a, first drives
Dynamic circuit 211 is connect with HF switch pipe Q3A and HF switch pipe Q4A.
With reference to figure 7, the second primary side resonant transform circuit 210 is series resonance translation circuit, including the second primary side driving electricity
Road 211 and the second primary side switch converter unit 212, the second primary side driving circuit 211 are single for driving the transformation of the second primary side switch
Member 212.To have the function of inversion and rectification, the main element of the second primary side switch converter unit 212 is HF switch pipe, and
HF switch pipe has the diode of reverse parallel connection and is protected with being formed to itself, is HF switch pipe Q3B and Q4B respectively.Second
Primary side resonant transform circuit 210 further includes the second resonant capacitance Cr2b, the second resonant capacitance Cr1b and the second resonant inductance Lrb,
The drain electrode of the source electrode connection HF switch pipe Q4B of HF switch pipe Q3B, one end and the second resonance electricity of the second resonant capacitance Cr1b
Hold one end connection of Cr2b, the drain electrode of HF switch pipe Q3B is connect with the other end of the second resonant capacitance Cr2b, HF switch pipe
The source electrode of Q4B is connect with the other end of the second resonant capacitance Cr1b, the second isolating transformer TRBOne end 4B of primary side pass through
Two resonant inductance Lrb are connected to the intermediate point of HF switch pipe Q3B and HF switch pipe Q4B, the second isolating transformer TRBOriginal
The other end 5B on side is connect with the second resonant capacitance Cr1b with the intermediate point of the second resonant capacitance Cr2b, the second driving circuit 221
It is connect with HF switch pipe Q3B and HF switch pipe Q4B.
With reference to figure 7, to have the function of inversion and rectification, the main element of the first secondary side translation circuit 120 is that high frequency is opened
Guan Guan, including HF switch pipe Q11A and Q13A.First secondary side translation circuit 120 further includes capacitance C3a, capacitance C4a and first
Secondary side driving circuit 121, one end of capacitance C3a and one end series connection of capacitance C4a, the source electrode of HF switch pipe Q11A are opened with high frequency
The drain electrode connection of pipe Q13A is closed, the drain electrode of HF switch pipe Q11A is connect with the other end of capacitance C3a, HF switch pipe Q13A's
Source electrode is connect with the other end of capacitance C4a, the first isolating transformer TRASecondary side one end 1A connection capacitance C3a and capacitance C4a
Intermediate point, the first isolating transformer TRAThe other end 2A on secondary side then connect HF switch pipe Q11A and HF switch pipe Q13A
Intermediate point.
With reference to figure 7, to have the function of inversion and rectification, the main element of the second secondary side translation circuit 220 is that high frequency is opened
Guan Guan, including HF switch pipe Q11B and Q13B.Second secondary side translation circuit 220 further includes capacitance C3b, capacitance C4b and second
Secondary side driving circuit 221, one end of capacitance C3b and one end series connection of C4b, source electrode and the HF switch pipe of HF switch pipe Q11B
The drain electrode of Q13B connects, and the drain electrode of HF switch pipe Q11B is connect with the other end of capacitance C3b, the source electrode of HF switch pipe Q13B
It is connect with the other end of capacitance C4b, the second isolating transformer TRBSecondary side one end 1B connection capacitance C3b and capacitance C4b in
Between point, the second isolating transformer TRBThe other end 2B on secondary side then connect in HF switch pipe Q11B and HF switch pipe Q13B
Between point.
Filter capacitor Cr2a, resonant capacitance Cr1a, resonant inductance Lra, HF switch pipe in first sub- translation circuit 100
Q3A, the parameter of HF switch pipe Q4A are identical as the second sub- translation circuit 200, the first isolating transformer TRAPrimary side winding
With the second isolating transformer TRBIt is consistent.
The operation principle of high-voltage bidirectional DC transfer circuit is described below:
Control the open-minded of the first sub- translation circuit 100 and the second sub- translation circuit 200 forward or backwards by controller 300
The two-way changing of electric energy may be implemented in sequential.At the same time it can also make the first sub- translation circuit 100 and second by controller 300
Sub- translation circuit 200 works in same-phase pattern or misphase bit pattern.
With reference to figure 7, controller 300 is secondary with the first primary side driving circuit 111, the second primary side driving circuit 211, first respectively
When driving circuit 121, second is secondary, driving circuit 221 connects, and controller 300 is for the first son transformation electricity of control forward or backwards
Road 100 and the second sub- translation circuit 200 open sequential, specifically controller 300 control each driving circuit drive it is different
HF switch pipe turns on and off, and can conveniently realize the two-way changing of electric energy.301 input sample of one end of controller 300
Signal, the other end 302 export sampled signal.
With reference to figure 7 and Fig. 8, high-voltage bidirectional DC transfer circuit works in positive same-phase pattern:On primary side DC side V1A
End A+ be just, lower end A- be negative, the first primary side driving circuit 111 driving HF switch pipe Q3A is opened, HF switch pipe Q4A is closed
Disconnected, the second primary side driving circuit 211 driving HF switch pipe Q3B is opened, HF switch pipe Q4B is turned off, the original of two transformers
Side forms half-bridge LLC transformation loops;First secondary side driving circuit 121 drives HF switch pipe Q13A to open, HF switch pipe
Q11A is turned off, and the second secondary side driving circuit 221 drives HF switch pipe Q13B to open, HF switch pipe Q11B is turned off, two changes
The coupled voltages on the secondary side of depressor are respectively VTa and VTb, and the secondary side of transformer forms current path, to output voltage.Together
Reason, after HF switch pipe Q4A and Q4B are opened, the coupled voltages on the secondary side of two transformers are respectively VTa and VTb, transformer
Secondary side form current path, to output voltage, electric energy is made to be transferred to secondary side from the primary side of transformer.
With reference to figure 7 and Fig. 9, high-voltage bidirectional DC transfer circuit works in positive misphase bit pattern:First primary side driving electricity
Road 111 drives HF switch pipe Q3A open-minded, the second primary side driving circuit 211 driving HF switch pipe Q3B after 1/4 period
Open-minded, the primary side of two transformers forms half-bridge LLC transformation loops;On the secondary side of transformer, HF switch pipe Q13A and high frequency
Switching tube Q13B is also that misphase position is open-minded, and the coupled voltages on the secondary side of two transformers are respectively VTa and VTb, the pair of transformer
Side forms current path, to output voltage.Similarly, after HF switch pipe Q4A and Q4B misphase position is opened, two transformers
The coupled voltages on secondary side be respectively VTa and VTb, the secondary side of transformer forms current path, to output voltage, make electric energy from
The primary side of transformer is transferred to secondary side.
With reference to figure 7 and Figure 10, high-voltage bidirectional DC transfer circuit works in reversed same-phase pattern:First secondary side driving electricity
Road 121 drives HF switch pipe Q13A to open, HF switch pipe Q11A is turned off, and the second secondary side driving circuit 221 drives high frequency to open
Pass pipe Q13B is opened, HF switch pipe Q11B is turned off, and the secondary side of two transformers carries out inversion to the electric energy of DC side;First is former
Side driving circuit 111 drives HF switch pipe Q3A to open, HF switch pipe Q4A is turned off, the driving of the second primary side driving circuit 211
HF switch pipe Q3B is opened, HF switch pipe Q4B is turned off, and the primary side of transformer generates coupled voltages, the primary side of two transformers
Rectification is carried out to electric energy, the primary side of transformer forms current path, to output voltage.Similarly, as HF switch pipe Q11A and
After Q11B is opened, the primary side of two transformers generates coupled voltages, and the primary side of transformer forms current path, to export electricity
Pressure, makes electric energy be transferred to primary side from the secondary side of transformer.
With reference to figure 8 and Figure 11, high-voltage bidirectional DC transfer circuit works in reversed misphase bit pattern:First secondary side driving electricity
Road 121 drives HF switch pipe Q13A open-minded, and the second secondary side driving circuit 221 drives HF switch pipe after 1/4 period
Q13B is open-minded, and the primary side of two transformers carries out inversion to the electric energy of DC side;In the primary side of transformer, HF switch pipe Q3A
It is also that misphase position is open-minded with HF switch pipe Q3B, the primary side of transformer generates coupled voltages, and the primary side of two transformers is to electric energy
Rectification is carried out, the primary side of transformer forms current path, to output voltage.Similarly, when HF switch pipe Q11A and Q11B are wrong
After phase is opened, the primary side of two transformers generates coupled voltages, and the primary side of transformer forms current path, to export electricity
Pressure, makes electric energy be transferred to primary side from the secondary side of transformer.
The utility model is illustrated above, but the utility model there can also be some variants:
With reference to figure 12, the high-voltage bidirectional DC transfer circuit of the utility model includes three sub- translation circuits, is two respectively
A first sub- translation circuit 100 and a second sub- translation circuit 200.The front end of two the first sub- translation circuits and the second son become
The front end series connection of circuit is changed, rear end is also series connection.The voltage range output and input is further broadened in this way.Certainly, according to
Four, five, six, seven or eight or more sub- translation circuits can also be arranged in actual conditions.
The utility model is further described based on above explanation:
Primary side DC side V1A and pair side DC side V2A are to load, and are that can provide electric energy or absorb electric energy
Device or circuit, concrete type include but not limited to DC power supply, battery and AC inverter circuit, wherein AC inverter electricity
Road includes Single-phase Converter circuit and three-phase alternating current inverter circuit;The quantity of DC side is at least two, is respectively set
In primary and secondary side.
The front end 11 and rear end 12 of first sub- translation circuit 100, the front end 21 of the second sub- translation circuit 200 and rear end 22 are used
It is connect in DC side.Based on above to the explanation of the connection of the first sub- translation circuit 100 and the second sub- translation circuit 200, this
The technical staff in field will recognize that:Before the front end 11 of first sub- translation circuit 100 and the second sub- translation circuit 200
Hold 21 it is in series or in parallel after connect with DC side;Or first sub- translation circuit 100 rear end 12 and the second sub- translation circuit
200 rear end 22 is in series or in parallel to be connect with DC side afterwards;Or first sub- translation circuit 100 front end 11 and second son become
Change circuit 200 front end 21 it is in series or in parallel after connect with a DC side and the rear end 12 of the first sub- translation circuit 100 and
The rear end 22 of second sub- translation circuit 200 is in series or in parallel to be connect with another DC side afterwards;Or the first sub- translation circuit
It is connect with DC side after 100 front end 11 is in series or in parallel with the front end 21 of the second sub- translation circuit 200, the first son transformation electricity
The rear end 12 on road 100 is connect with different DC sides respectively from the rear end 22 of the second sub- translation circuit 200;Or first son transformation
It is connect with DC side after the rear end 12 of circuit 100 is in series or in parallel with the rear end 22 of the second sub- translation circuit 200, the first son becomes
The front end 11 for changing circuit 100 is connect with different DC sides respectively from the front end 21 of the second sub- translation circuit 200.Such benefit
It is to be adapted to more port voltage scenes, output voltage range can also be made wider.
With reference to figures 13 to Figure 15, the circuit of the first primary side resonant transform circuit 110 and the second primary side resonant transform circuit 210
Form can also be full bridge circuit.In the case that translation circuit input current is identical, input voltage is also identical, full-bridge type
The original edge voltage of circuit is twice of half bridge circuit, then the output power of power full formula circuit is the two of half bridge circuit
Again namely full bridge circuit is suitble to high-power output.With reference to figure 13, primary side resonant transform circuit is full bridge circuit, and secondary side becomes
The rectifier system for changing circuit is voltage multiplying rectifier;With reference to figure 14, primary side resonant transform circuit is full bridge circuit, secondary side translation circuit
Rectifier system be full-bridge rectification;With reference to figure 15, primary side resonant transform circuit is full bridge circuit, the rectification of secondary side translation circuit
Mode is full-wave rectification.
With reference to figures 13 to Figure 17, the first secondary translation circuit 220 when translation circuit 120 and second are secondary realizes the mode of rectification
Including full-bridge rectification, voltage multiplying rectifier and full-wave rectification.With reference to figure 16, primary side resonant transform circuit is half bridge circuit, and secondary side becomes
The rectifier system for changing circuit is full-bridge rectification;With reference to figure 17, primary side resonant transform circuit is half bridge circuit, secondary side translation circuit
Rectifier system be full-wave rectification.
According to actual needs, the first primary side resonant transform circuit 110 and the second primary side resonant transform circuit 210 can also be
Parallel resonance translation circuit.
The above content is specific/preferred embodiment further detailed description of the utility model is combined, no
It can assert that the specific implementation of the utility model is confined to these explanations.For the common skill of the utility model technical field
For art personnel, without departing from the concept of the premise utility, the embodiment that these have been described can also be made
Some replacements or modification, and these are substituted or variant all shall be regarded as belonging to the scope of protection of the utility model.
Claims (10)
1. a kind of high-voltage bidirectional DC transfer circuit, it is characterised in that:Including at least one first sub- translation circuit, at least one
Second sub- translation circuit and at least one controller;The front end of the first sub- translation circuit and the described second sub- translation circuit
The rear end of front end serial or parallel connection and/or the first sub- translation circuit connect with the rear end of the described second sub- translation circuit or
It is in parallel;The front-end and back-end of the first sub- translation circuit, the second sub- translation circuit front-end and back-end be used for and have
The DC side of bi-directional capability connects;The first sub- translation circuit and the second sub- translation circuit include sequentially connected original
Translation circuit and secondary side filter capacitor in filter capacitor, primary side resonant transform circuit, isolating transformer, pair;The primary side is humorous
It shakes translation circuit and the secondary side translation circuit is provided with the function of inversion and rectification;The controller for controlling forward or backwards
Make the described first sub- translation circuit and the second sub- translation circuit open sequential and make the described first sub- translation circuit and
The second sub- translation circuit works in same-phase pattern or misphase bit pattern.
2. high-voltage bidirectional DC transfer circuit according to claim 1, it is characterised in that:The primary side resonant transform circuit
Circuit form for series resonance translation circuit, the primary side resonant transform circuit includes half bridge circuit and full bridge circuit.
3. high-voltage bidirectional DC transfer circuit according to claim 1 or 2, it is characterised in that:Pair side translation circuit
Realize that the mode of rectification includes full-bridge rectification, voltage multiplying rectifier and full-wave rectification.
4. high-voltage bidirectional DC transfer circuit according to claim 1, it is characterised in that:The misphase of the misphase bit pattern
Phase includes that 1/ (2N) a periods or 1/4 period, N indicate the number of sub- translation circuit.
5. high-voltage bidirectional DC transfer circuit according to claim 1, it is characterised in that:The DC side is two-way to have
Power supply, circuit or the load of ability.
6. high-voltage bidirectional DC transfer circuit according to claim 5, it is characterised in that:The DC side includes direct current
Source, battery and AC inverter circuit.
7. high-voltage bidirectional DC transfer circuit according to claim 1, it is characterised in that:The isolating transformer is high frequency
Isolating transformer.
8. high-voltage bidirectional DC transfer circuit according to claim 1, it is characterised in that:The primary side resonant transform circuit
Including primary side driving circuit and primary side switch converter unit, the primary side driving circuit is single for driving the primary side switch transformation
Member.
9. high-voltage bidirectional DC transfer circuit according to claim 8, it is characterised in that:The primary side switch converter unit
Main element be HF switch pipe, the HF switch pipe has the diode of reverse parallel connection.
10. high-voltage bidirectional DC transfer circuit according to claim 1, it is characterised in that:Of the sub- translation circuit
Number is three, four or five or more.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018201467537 | 2018-01-29 | ||
| CN201820146753 | 2018-01-29 |
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| Publication Number | Publication Date |
|---|---|
| CN208001236U true CN208001236U (en) | 2018-10-23 |
Family
ID=63837758
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820326391.XU Expired - Fee Related CN208001236U (en) | 2018-01-29 | 2018-03-09 | A kind of high-voltage bidirectional DC transfer circuit |
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| Country | Link |
|---|---|
| CN (1) | CN208001236U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039121A (en) * | 2018-10-31 | 2018-12-18 | 深圳市高益智能电气有限公司 | A kind of high-frequency isolation type ac-dc conversion circuit and its control method |
| CN111525804A (en) * | 2019-02-03 | 2020-08-11 | 台达电子工业股份有限公司 | DC/DC conversion system |
-
2018
- 2018-03-09 CN CN201820326391.XU patent/CN208001236U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039121A (en) * | 2018-10-31 | 2018-12-18 | 深圳市高益智能电气有限公司 | A kind of high-frequency isolation type ac-dc conversion circuit and its control method |
| CN109039121B (en) * | 2018-10-31 | 2024-05-10 | 南京熊猫电子股份有限公司 | High-frequency isolation type alternating current-direct current conversion circuit and control method thereof |
| CN111525804A (en) * | 2019-02-03 | 2020-08-11 | 台达电子工业股份有限公司 | DC/DC conversion system |
| TWI737129B (en) * | 2019-02-03 | 2021-08-21 | 台達電子工業股份有限公司 | Dc/dc converting system |
| US11121627B2 (en) | 2019-02-03 | 2021-09-14 | Delta Electronics, Inc. | DC/DC conversion system |
| CN111525804B (en) * | 2019-02-03 | 2021-10-08 | 台达电子工业股份有限公司 | DC/DC conversion system |
| CN113839561A (en) * | 2019-02-03 | 2021-12-24 | 台达电子工业股份有限公司 | DC/DC conversion system |
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