CN109217681A - A kind of two-way resonance converter - Google Patents
A kind of two-way resonance converter Download PDFInfo
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- CN109217681A CN109217681A CN201811414184.0A CN201811414184A CN109217681A CN 109217681 A CN109217681 A CN 109217681A CN 201811414184 A CN201811414184 A CN 201811414184A CN 109217681 A CN109217681 A CN 109217681A
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- trapper
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention discloses a kind of this two-way resonance converters, including input source, inverter, additional inductor, resonance circuit, transformer, rectification circuit, filter capacitor and load；The inverter is full-bridge inverter, is made of first switch tube, second switch, third switching tube, the 4th switching tube；The resonance circuit is made of resonant capacitance, resonant inductance, trapper capacitor, trapper inductance, main inductance；The transformer includes primary side winding and vice-side winding；The rectification circuit is full bridge rectifier, is made of the 5th switching tube, the 6th switching tube, the 7th switching tube, the 8th switching tube；The reversible transducer Direct/Reverse run time organization is symmetrical, and working principle is identical, Sofe Switch easy to accomplish.
Description
Technical field
The present invention relates to converters technical field more particularly to a kind of two-way resonance converters, especially belong to
In isolated DC-direct current energy converter technique field.
Background technique
As the epoch are progressive and the development of science and technology, bidirectional DC-DC converter new energy, space flight and aviation, traffic, communication with
And the fields such as Industry Control are widely applied.Isolated converter has two-way flyback, two-way normal shock, two-way recommend, is two-way
Five seed type of half-bridge and two-way full-bridge converter.
Two-way forward converter working principle is simple, and driving circuits are easily designed, is suitable for middle low power field
It closes, but transformer used is in unidirectional excited state, utilization rate is lower.Two-way flyback converter has electrical isolation, topology
The advantages that structure is simple, at low cost, transmitted in both directions, is suitable for small-power occasion.The transformer of two-way push-pull converter there is also
Leakage inductance, power tube bear biggish voltage and current stress, are not suitable in the high pressure place of bad environments, but its power grade compared with
Two-way flyback converter is higher.Bi-directional half bridge converter topology structure is simple, and required component is less, is suitable for middle low power
Occasion, but it is not suitable for the biggish application of range of regulation.The voltage of two-way full-bridge converter power device, current stress compared with
It is small, it is suitable for the higher occasion of power grade.
In the two-way full-bridge converter developed, DAB converter there are the problem of have: input, output voltage are not
Timing can generate biggish circulation, and the realization range with the mitigation ZVS of load becomes smaller, and switching tube cut-off current is larger, these
Loss will be increased to reduce efficiency.Compared with DAB converter, two-way series controlled resonant converter increase a capacitor and with
Inductance forms series resonant network, ZCS can be realized by the natural decline zero passage of resonance current, concatenated resonant capacitance can
To play the role of blocking, and the current distortion of transformer is effectively reduced, turbine loss is effectively reduced.LLC resonant converter is defeated
The rectifier diode of side is replaced with power device MOSFET out, it may be achieved way traffic.When two-way LLC converter forward direction is run,
It is identical with working characteristics with the working principle of LLC resonant converter；And when its inverted running, it is only similar to traditional
Full-bridge converter, gain is less than or equal to 1, and is only just being able to achieve ZVS when overloaded.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is to provide a kind of two-way resonance converters.
To achieve the above object, the present invention is realized according to following technical scheme:
A kind of two-way resonance converter characterized by comprising input source Vin, inverter, additional inductor Lm2, resonance electricity
Road, transformer, rectification circuit, filter capacitor CoWith load Ro；The inverter is full-bridge inverter, by first switch tube S1,
Two switching tube S2, third switching tube S3, the 4th switching tube S4It constitutes；The resonance circuit is by resonant capacitance Cr, resonant inductance Lr, fall into
Wave device capacitor Cp, trapper inductance Lp, main inductance Lm1It constitutes；The transformer T includes primary side winding NpWith vice-side winding Ns；Institute
Stating rectification circuit is full bridge rectifier, by the 5th switching tube S5, the 6th switching tube S6, the 7th switching tube S7, the 8th switching tube S8
It constitutes；
The input source VinAnode with first switch tube S1Drain electrode and third switching tube S3Drain electrode be connected, first opens
Close pipe S1Source electrode be connected in second switch S2Drain electrode, additional inductor Lm2One end, resonant capacitance CrOne end and trapper electricity
Hold CpOne end, resonant capacitance CrThe other end be connected in trapper inductance Lp, trapper inductance LpThe other end be connected in trapper electricity
Hold CpThe other end, main inductance Lm1One end and transformer T primary side winding NpSame Name of Ends, main inductance Lm1The other end be connected in change
Depressor T primary side winding NpNon-same polarity and resonant inductance LrOne end, resonant inductance LrThe other end be connected in additional inductor Lm2's
The other end, third switching tube S3Source electrode and the 4th switching tube S4Drain electrode, the 4th switching tube S4Source electrode be connected in second switch
S2Source electrode and input source VinCathode；
The transformer T vice-side winding NsSame Name of Ends is connected in the 7th switching tube S7Source electrode and the 8th switching tube S8Drain electrode,
5th switching tube S5Drain electrode be connected in the 7th switching tube S7Drain electrode, output filter capacitor CoOne end and load RoOne end, become
Depressor T vice-side winding NsNon-same polarity is connected in the 5th switching tube S5Source electrode and the 6th switching tube S6Drain electrode, the 6th switching tube S6
Source electrode be connected in the 8th switching tube S8Source electrode, output filter capacitor CoThe other end and load RoThe other end.
Optionally, the main inductance Lm1It is replaced by the magnetizing inductance of transformer T.
Optionally, the resonant inductance LrPartly or entirely replaced by the leakage inductance of transformer T.
Compared with the prior art, the invention has the following advantages:
(1) structure of converter is full symmetric in forward and reverse operation, and control mode and operation logic are also identical；
(2) voltage of all switching devices is all directly by input voltage or output voltage clamper, switching device voltage stress
It is low；
(3) transformer leakage inductance is utilized effectively, and there is no circulation or due to voltage spikes problems caused by leakage inductance；
(4) converter can transmit power using triple-frequency harmonics, high to the utilization rate of energy；
(5) gain ranging that converter is able to achieve is wide, can realize that gain is zero under smaller switching frequency, and two-way equal energy is real
It is now pressurized and is depressured.
(6) additional inductor Lm2It is not involved in resonance in forward direction operation, is only used to that primary side is helped to realize Sofe Switch；Main inductance Lm1
It is not involved in resonance in inverted running, is only used to that secondary side is helped to realize Sofe Switch.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the circuit diagram of two-way resonance converter of the present invention；
Fig. 2 is main waveform diagram of the two-way resonance converter work of the present invention when switching frequency is less than resonance frequency；
Fig. 3 is main waveform diagram of the two-way resonance converter work of the present invention when switching frequency is greater than resonance frequency；
Fig. 4 (a)-Fig. 4 (c) is that two-way resonance converter work of the present invention is respectively being opened when switching frequency is less than resonance frequency
Close the equivalent circuit diagram of mode；
Fig. 5 (a)-Fig. 5 (c) is that two-way resonance converter work of the present invention is respectively being opened when switching frequency is greater than resonance frequency
Close the equivalent circuit diagram of mode；
Fig. 6 is the gain curve figure of two-way resonance converter of the present invention；
Fig. 7 is work wave of the positive work of two-way resonance converter embodiment 1 of the present invention in 117kHz switching frequency
Figure；
Fig. 8 is working waveform figure of the positive work of two-way resonance converter embodiment 1 of the present invention in 60kHz switching frequency
Fig. 9 is working waveform figure of 1 reverse operation of two-way resonance converter embodiment of the present invention in 114kHz；
Designation in the figures above: VinFor input source；S1、S2、S3、S4Respectively first, second, third, fourth opens
Guan Guan；Additional inductor Lm2For additional inductor；CrFor resonant capacitance；LrFor resonant inductance；CpFor trapper capacitor；LpFor trapper
Inductance；Lm1For main inductance；T is transformer；S5、S6、S7、S8Respectively the five, the six, the seven, the 8th switching tubes；CoFor output
Filter capacitor；RoFor load；NpAnd NsThe respectively primary side winding and vice-side winding of transformer T；VoFor output voltage；Vm2It is attached
Coilloading Lm2The voltage at both ends；im1For main inductance Lm1Electric current；im2For additional inductor Lm2Electric current；ipFor primary current；isFor
Secondary current；is7To flow through S7Electric current；V1For switching tube S1Both end voltage；t0、t1、t2、t3、t4、t5、t6、t7、t8For the time.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
In being described below, for illustration and not for limitation, such as particular switch pipe, driving method etc are proposed
Details, to understand thoroughly the present invention.However, it will be clear to one skilled in the art that in other realities without these details
It applies and the present invention also may be implemented in example.
The present invention is described in detail with reference to the accompanying drawing.
A kind of two-way resonance converter, including input source Vin, inverter, additional inductor Lm2, it is resonance circuit, transformer, whole
Current circuit, filter capacitor CoWith load Ro；The inverter is full-bridge inverter, by first switch tube S1, second switch S2、
Third switching tube S3, the 4th switching tube S4It constitutes；The resonance circuit is by resonant capacitance Cr, resonant inductance Lr, trapper capacitor Cp、
Trapper inductance Lp, main inductance Lm1It constitutes；The transformer T includes primary side winding NpWith vice-side winding Ns；The rectification circuit is
Full bridge rectifier, by the 5th switching tube S5, the 6th switching tube S6, the 7th switching tube S7, the 8th switching tube S8It constitutes；
The input source VinAnode with first switch tube S1Drain electrode and third switching tube S3Drain electrode be connected, first opens
Close pipe S1Source electrode be connected in second switch S2Drain electrode, additional inductor Lm2One end, resonant capacitance CrOne end and trapper electricity
Hold CpOne end, resonant capacitance CrThe other end be connected in trapper inductance Lp, trapper inductance LpThe other end be connected in trapper electricity
Hold CpThe other end, main inductance Lm1One end and transformer T primary side winding NpSame Name of Ends, main inductance Lm1The other end be connected in change
Depressor T primary side winding NpNon-same polarity and resonant inductance LrOne end, resonant inductance LrThe other end be connected in additional inductor Lm2's
The other end, third switching tube S3Source electrode and the 4th switching tube S4Drain electrode, the 4th switching tube S4Source electrode be connected in second switch
S2Source electrode and input source VinCathode；
The transformer T vice-side winding NsSame Name of Ends is connected in the 7th switching tube S7Source electrode and the 8th switching tube S8Drain electrode,
5th switching tube S5Drain electrode be connected in the 7th switching tube S7Drain electrode, output filter capacitor CoOne end and load RoOne end, become
Depressor T vice-side winding NsNon-same polarity is connected in the 5th switching tube S5Source electrode and the 6th switching tube S6Drain electrode, the 6th switching tube S6
Source electrode be connected in the 8th switching tube S8Source electrode, output filter capacitor CoThe other end and load RoThe other end.
Optionally, the main inductance Lm1It is replaced by the magnetizing inductance of transformer T.
Optionally, the resonant inductance LrPartly or entirely replaced by the leakage inductance of transformer T.
The forward and reverse run time organization of multi-element resonant converter of the present invention is symmetrical, control mode and working principle phase
Together, using following control program:
The first, second, third, fourth switching tube S1、S2、S3、S4Switching frequency it is equal, first switch tube S1,
Three switching tube S3Switching signal respectively with second switch S2, the 4th switching tube S4Switching signal it is complementary, and duty ratio is
0.5, in the specific implementation, first switch tube S1With second switch S2Switching signal between when must be provided with reasonable dead zone
Between to avoid occur bridge arm direct pass, third switching tube S3With the 4th switching tube S4Switching signal between must be provided with it is reasonable dead
Area's time is to avoid generation bridge arm direct pass, the five, the six, the seven, the 8th switching tube S5、S6、S7、S8With first, second, third,
4th switching tube S1、S2、S3、S4Switching frequency it is identical.
When switching frequency is less than resonance frequency, using non-wide control mode is synchronized, the five, the six, the seven, the 8th are opened
Close pipe S5、S6、S7、S8Half harmonic period is fixed as in the turn-on time of half of switch periods, first, second, third,
4th switching tube S1、S2、S3、S4With 50% duty cycle.
When switching frequency is greater than resonance frequency, using wide control mode is synchronized, i.e. primary side switch pipe and secondary side pair
The driving signal of inductive switch pipe is fully synchronized, and pulse width is identical, is 50% duty ratio.First switch tube S1It is opened with the 4th
Close pipe S4, the 6th switching tube S6, the 7th switching tube S7Switching frequency simultaneously turns on, and simultaneously turns off, second switch S2It is opened with third
Close pipe S3, the 5th switching tube S5, the 8th switching tube S8It simultaneously turns on, simultaneously turns off, output electricity is adjusted by regulating switch frequency
Pressure.
Do following hypothesis before analysis: (1) converter is in steady operational status；(2) all inductance, capacitor and transformer
It is ideal element；(3) filter capacitor is sufficiently large, ignores output voltage ripple.
Attached drawing 2 is main waveform diagram of the two-way resonance converter work of the present invention when switching frequency is less than resonance frequency.
When switching frequency is less than resonance frequency, the converter shares 3 kinds of operation modes in half of switch periods, when forward direction operation its
Each switch mode working condition is described as follows.
Mode I (t0~t1): t0Moment opens switching tube S1、S4, before this, S1、S4Parasitic capacitance discharge finish,
Afterflow, therefore S is connected in body diode1、S4It is able to achieve ZVS.Primary side Lr, Cr, LpAnd CpResonance, resonance current ipRise, always greatly
In excitation inductance current im1, secondary side S6、S7Open-minded, primary side transmits energy to secondary side.Lm1On voltage clamped by output voltage,
im1It is linearly increasing, referring to attached drawing 4 (a).
Mode II (t1~t2): t1Moment resonance current ipWith exciting current im1Equal, secondary current is reduced to zero, closes at this time
Disconnected S6、S7, reversely restoring process, S is not present6、S7Realize ZCS.In this stage Lr, Cr, Lp, CpAnd Lm1Common resonance.Cause
For Lm1It is very big, resonance current ipRate of change it is very slow, be approximately considered and remain unchanged, referring to attached drawing 4 (b).
Mode III (t2~t3): t2Moment, S1、S4Shutdown.Primary side current is to S1、S4Parasitic capacitance charging, simultaneously will
S2、S3Parasitic capacitance discharge to 0.After the completion of charge and discharge, the parasitic capacitance charge and discharge of switching tube are finished, the voltage of A, B two o'clock
For-Vin, primary side S2、S3Body diode be connected afterflow, secondary side S5、S8Afterflow is connected in the body diode of converter, and converter enters
To lower half periodic duty, referring to attached drawing 4 (c).
Attached drawing 3 is main waveform diagram of the two-way resonance converter work of the present invention when switching frequency is greater than resonance frequency.
When switching frequency is greater than resonance frequency, the converter shares 3 kinds of operation modes in half of switch periods, when forward direction operation its
Each switch mode working condition is described as follows.
Mode I (t0~t1): t0Moment opens switching tube S1、S4、S6、S7, before this, S1、S4、S6、S7Parasitic capacitance
Discharge off, afterflow is connected in body diode, therefore is able to achieve ZVS.Primary side Lr, Cr, LpAnd CpResonance, resonance current ipRise,
Consistently greater than excitation inductance current im1, primary side to secondary side transmit energy.Lm1On voltage clamped by output voltage, im1It is linear to increase
Add, referring to attached drawing 5 (a).
Mode II (t1~t2): t1Moment, S1、S4Shutdown.Primary side current is by S1、S4Parasitic capacitance charge to voltage and be
Vin, while by S2、S3Parasitic capacitance discharge to 0.Secondary side current is by S6、S7Parasitic capacitance charge to voltage be Vin, simultaneously
By S5、S8Parasitic capacitance discharge to 0.S after the completion of charge and discharge2、S3、S6、S7Body diode be connected afterflow.Resonance current ipUnder
Drop, consistently greater than exciting current im1, referring to attached drawing 5 (b).
Mode III (t2~t3): t2Moment, resonance current ipIt drops to and exciting current im1It is equal, hereafter resonance current ip
Continue to decline, resonance current is less than exciting current im1, secondary current isReversely, Lm1On voltage born output voltage clamp,
im1Start linear decline, the voltage of C, D two o'clock is-Vo, secondary side S5、S8Afterflow is connected in the body diode of converter, referring to attached drawing 5
(c)。
t3Moment opens S2、S3, converter enters lower half periodic duty.
Embodiment 1
The present embodiment two-way resonance converter includes input source Vin, inverter, additional inductor Lm2, resonance circuit, transformation
Device, rectification circuit, filter capacitor CoWith load Ro；The inverter is full-bridge inverter, by first switch tube S1, second switch
Pipe S2, third switching tube S3, the 4th switching tube S4It constitutes；The resonance circuit is by resonant capacitance Cr, resonant inductance Lr, trapper electricity
Hold Cp, trapper inductance Lp, main inductance Lm1It constitutes；The transformer T includes primary side winding NpWith vice-side winding Ns；The rectification
Circuit is full bridge rectifier, by the 5th switching tube S5, the 6th switching tube S6, the 7th switching tube S7, the 8th switching tube S8It constitutes.
Main inductance L in the present embodimentm1It is replaced by the magnetizing inductance of transformer T.Resonant inductance LrPartly or entirely by transformation
The leakage inductance of device T replaces.Relevant parameter is: when forward direction operation, Vin=400V, when inverted running, Vin=350V, resonant capacitance Cr=
55.9nF, resonant inductance Lr=12.59uH, trapper capacitor Cp=33.54nF, trapper inductance Lp=30.21uH, main inductance
Lm1=179.8uH, Np/Ns=1.2, resonant capacitance Cr, resonant inductance Lr, trapper capacitor Cp, trapper inductance LpResonance occurs
Frequency be 100kHz.Fig. 6 is the gain curve figure of two-way resonance converter of the present invention.
Fig. 7 be the present embodiment two-way resonance converter switches frequency be 60kHz forward direction operation when work wave, can see
Resonance current waveform is in saddle wave, output voltage 454V out.
The work wave that Fig. 8 is the present embodiment two-way resonance converter switches frequency when being the operation of 117kHz forward direction, can be with
Resonance current waveform is found out in saddle wave, and output voltage virtual value is 300V.
The work wave that Fig. 9 is the present embodiment two-way resonance converter switches frequency when being 114kHz inverted running, can be with
Resonance current waveform is found out in saddle wave, and output voltage virtual value is 400V.
By embodiment it is found that beneficial effect existing for the application is: (1) structure of converter is complete in forward and reverse operation
Holohedral symmetry, control mode and operation logic are also identical.(2) voltage of all switching devices is all directly by input voltage or output electricity
Pressing tongs position, switching device voltage stress are low.(3) transformer leakage inductance is utilized effectively, and there is no circulation or electricity caused by leakage inductance
Press spiking problems.(4) converter can transmit power using triple-frequency harmonics, high to the utilization rate of energy.(5) converter is able to achieve
Gain ranging is wide, can realize that gain is zero under smaller switching frequency.(6) additional inductor Lm2It is not involved in forward direction operation humorous
Vibration can help primary side to realize Sofe Switch；Main inductance Lm1It is not involved in resonance in inverted running, secondary side can be helped to realize Sofe Switch.
(7)S6、S7With S1、S4It simultaneously turns on, simultaneously turns off, S5、S8With S2、S3, simultaneously turn on, simultaneously turn off, secondary current flows through MOS
Pipe rather than its body diode, conduction loss are small.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (3)
1. a kind of two-way resonance converter characterized by comprising input source Vin, inverter, additional inductor Lm2, resonance circuit,
Transformer, rectification circuit, filter capacitor CoWith load Ro；The inverter is full-bridge inverter, by first switch tube S1, second
Switching tube S2, third switching tube S3, the 4th switching tube S4It constitutes；The resonance circuit is by resonant capacitance Cr, resonant inductance Lr, trap
Device capacitor Cp, trapper inductance Lp, main inductance Lm1It constitutes；The transformer T includes primary side winding NpWith vice-side winding Ns；It is described
Rectification circuit is full bridge rectifier, by the 5th switching tube S5, the 6th switching tube S6, the 7th switching tube S7, the 8th switching tube S8Structure
At；
The input source VinAnode with first switch tube S1Drain electrode and third switching tube S3Drain electrode be connected, first switch tube
S1Source electrode be connected in second switch S2Drain electrode, additional inductor Lm2One end, resonant capacitance CrOne end and trapper capacitor Cp
One end, resonant capacitance CrThe other end be connected in trapper inductance Lp, trapper inductance LpThe other end be connected in trapper capacitor Cp
The other end, main inductance Lm1One end and transformer T primary side winding NpSame Name of Ends, main inductance Lm1The other end be connected in transformer
T primary side winding NpNon-same polarity and resonant inductance LrOne end, resonant inductance LrThe other end be connected in additional inductor Lm2It is another
End, third switching tube S3Source electrode and the 4th switching tube S4Drain electrode, the 4th switching tube S4Source electrode be connected in second switch S2's
Source electrode and input source VinCathode；
The transformer T vice-side winding NsSame Name of Ends is connected in the 7th switching tube S7Source electrode and the 8th switching tube S8Drain electrode, the 5th
Switching tube S5Drain electrode be connected in the 7th switching tube S7Drain electrode, output filter capacitor CoOne end and load RoOne end, transformer
T vice-side winding NsNon-same polarity is connected in the 5th switching tube S5Source electrode and the 6th switching tube S6Drain electrode, the 6th switching tube S6Source
Pole is connected in the 8th switching tube S8Source electrode, output filter capacitor CoThe other end and load RoThe other end.
2. two-way resonance converter according to claim 1, which is characterized in that the main inductance Lm1By the excitation of transformer T
Inductance replaces.
3. two-way resonance converter according to claim 1, which is characterized in that the resonant inductance LrPartly or entirely by transformation
The leakage inductance of device T replaces.
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| CN201811414184.0A CN109217681B (en) | 2018-11-26 | 2018-11-26 | Bidirectional resonant converter |
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|---|---|---|---|
| CN201811414184.0A CN109217681B (en) | 2018-11-26 | 2018-11-26 | Bidirectional resonant converter |
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| CN110611449A (en) * | 2019-09-29 | 2019-12-24 | 广东电网有限责任公司 | Compact energy storage converter system |
| CN111010044A (en) * | 2019-12-27 | 2020-04-14 | 天津工业大学 | Magnetic integrated double-active-bridge converter |
| CN111224553A (en) * | 2020-03-09 | 2020-06-02 | 合肥博鳌电气科技有限公司 | Improved bidirectional half-bridge three-level LLC direct-current converter and synchronous control method thereof |
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| CN109560711B (en) * | 2019-01-22 | 2020-02-11 | 山东大学 | Isolated bidirectional DC-DC converter and modulation method thereof |
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| CN111614147A (en) * | 2020-03-14 | 2020-09-01 | 青岛鼎信通讯股份有限公司 | Working mode and control method for improving efficiency of charging station energy router system |
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| WO2022077262A1 (en) * | 2020-10-14 | 2022-04-21 | 深圳欣锐科技股份有限公司 | Bidirectional resonant circuit and automobile |
| CN113271016A (en) * | 2021-05-28 | 2021-08-17 | 中国电力科学研究院有限公司 | Multi-level bidirectional wireless power transmission system and method |
| CN113271016B (en) * | 2021-05-28 | 2023-04-28 | 中国电力科学研究院有限公司 | Multi-level bidirectional wireless power transmission system and method |
| CN113517817A (en) * | 2021-06-07 | 2021-10-19 | 燕山大学 | Three-level bidirectional full-bridge LLCLC multi-resonant converter topology |
| CN113422517A (en) * | 2021-06-18 | 2021-09-21 | 中国科学院上海微系统与信息技术研究所 | High-energy-efficiency bidirectional DC/DC converter with wide output range |
| CN113422517B (en) * | 2021-06-18 | 2022-09-23 | 中国科学院上海微系统与信息技术研究所 | High-energy-efficiency bidirectional DC/DC converter with wide output range |
| CN113746331A (en) * | 2021-08-30 | 2021-12-03 | 西安交通大学 | Resonant switched capacitor converter using parasitic inductance |
| CN113890375A (en) * | 2021-10-12 | 2022-01-04 | 燕山大学 | Bipolar output bidirectional LLC resonant converter topology |
| CN113890375B (en) * | 2021-10-12 | 2024-01-09 | 燕山大学 | Bi-polar output bi-directional LLC resonant converter topology |
| CN114744888A (en) * | 2022-06-10 | 2022-07-12 | 深圳市国电赛思电源技术有限责任公司 | Bidirectional direct-current power supply and control method |
| WO2024051317A1 (en) * | 2022-09-09 | 2024-03-14 | 深圳深源技术能源有限公司 | Three-phase-interleaving extended-range efficient-isolation bidirectional converter |
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