CN110061627A - A kind of two-way DC/DC converter of high-gain suitable for energy-storage system - Google Patents
A kind of two-way DC/DC converter of high-gain suitable for energy-storage system Download PDFInfo
- Publication number
- CN110061627A CN110061627A CN201910405861.0A CN201910405861A CN110061627A CN 110061627 A CN110061627 A CN 110061627A CN 201910405861 A CN201910405861 A CN 201910405861A CN 110061627 A CN110061627 A CN 110061627A
- Authority
- CN
- China
- Prior art keywords
- switching tube
- switch
- transformer
- capacitor
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- 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
- H02M3/3353—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 at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of two-way DC/DC converter of high-gain suitable for energy-storage system, including the first and second DC power supply, the first and second inductance, first, second, third and fourth, five, six, seven, eight switching tubes, the first, second and third capacitor, transformers；First DC power supply and the first and second inductance connection；First inductance and the first and second switching tube, transformer connection；Second inductance is connect with third and fourth switching tube, transformer；First switch tube is connect with third switching tube, first capacitor；Second switch is connect with the 4th switching tube, first capacitor；Transformer is connect with the five, the six, seven switching tubes；Transformer and the 8th switching tube, second and third capacitance connection；7th switching tube is connect with the 8th switching tube；5th switching tube is connect with the second capacitor, the second DC power supply；6th switching tube is connect with third capacitor, the second DC power supply.The present invention has the advantages that high voltage gain, low current ripple, wide-voltage range.
Description
Technical field
The present invention relates to the technical field of direct current high-gain two-way changing more particularly to a kind of height suitable for energy-storage system
The two-way DC/DC converter of gain, belongs to the high frequency switch power direction of field of power electronics.
Background technique
The renewable new energy in China has come into the fast-developing phase, based on energy-storage system and photovoltaic power generation, wind-force hair
The direct-current grid that the grid-connected power generation systems such as electricity are constituted receives the concern of more and more scholars.Photovoltaic power generation, wind-power electricity generation
Randomness of the equal renewable energy power generations with generating dutation, generated energy, and these randomnesss, can cause to rush to access bulk power grid
It hits, therefore must have energy-storage system in direct-current micro-grid, to realize the peak load shifting to renewable energy.Due in direct-current micro-grid
DC bus-bar voltage be usually 400V or more, the voltage rating of energy-storage travelling wave tube is generally lower, and energy-storage units connect
Reduce reliability, it is therefore desirable to the DC/DC converter with high voltage gain.And traditional isolated two-way full-bridge DC/DC
Converter list realizes high-gain by adjustment transformer turns ratio, have voltage variable narrow range, energy storage side current ripples big and
Control complicated disadvantage.There is scholar to propose the isolated two-way DC/DC converter of current mode, has widened voltage range and by staggeredly
Mode reduce current ripples, but its still there are multiple control Coupled Variables to cause control is complicated to ask in control
Topic.Therefore research has weight to the energy-storage system direct-current grid suitable for the two-way DC/DC converter of the high-gain of energy-storage system
Want meaning.
Summary of the invention
It is an object of the invention to cannot be real for the existing isolation type bidirectional DC suitable for energy-storage system/DC converter
The problem that now wide-voltage range Sofe Switch, current ripples are big, multiple control Coupled Variables lead to control complexity, proposes a kind of fit
The two-way DC/DC converter of high-gain for energy-storage system.
To achieve the above object, technical solution provided by the present invention are as follows: a kind of high-gain suitable for energy-storage system is double
It include the first DC power supply, the first inductance, the second inductance, first switch tube and its anti-paralleled diode to DC/DC converter
And parasitic capacitance, second switch and its anti-paralleled diode and parasitic capacitance, third switching tube and its anti-paralleled diode and
Parasitic capacitance, the 4th switching tube and its anti-paralleled diode and parasitic capacitance, first capacitor, transformer and its primary side are concatenated etc.
Effect Same Name of Ends leakage inductance encourages sense, the 5th switching tube and its anti-paralleled diode and parasitic capacitance, the 6th switching tube with secondary side parallel connection
And its anti-paralleled diode and parasitic capacitance, the 7th switching tube and its anti-paralleled diode and parasitic capacitance, the 8th switching tube and
Its anti-paralleled diode and parasitic capacitance, the second capacitor, third capacitor, the second DC power supply；Wherein, first DC power supply
Anode connect respectively with one end of one end of the first inductance, the second inductance, the other end of first inductance is respectively with first
The source electrode of switching tube, the drain electrode of second switch, the concatenated equivalent Same Name of Ends leakage inductance connection of transformer primary side, second inductance
The other end connect respectively with the different name end of the source electrode of third switching tube, the drain electrode of the 4th switching tube, transformer primary side, described
The drain electrode of one switching tube is connect with the anode of the drain electrode of third switching tube, first capacitor respectively, the source electrode of the second switch
It is connect respectively with the cathode of the source electrode of the 4th switching tube, first capacitor, the Same Name of Ends of the transformer secondary is opened with the 5th respectively
Close the source electrode of pipe, the drain electrode of the 6th switching tube, the drain electrode of the 7th switching tube connection, the different name end of the transformer secondary respectively with
The drain electrode of 8th switching tube, the anode connection of the cathode of the second capacitor, third capacitor, the source electrode and the 8th of the 7th switching tube
The source electrode of switching tube connects, the anode with the anode of the second capacitor, the second DC power supply respectively that drains of the 5th switching tube
Connection, the source electrode of the 6th switching tube are connect with the cathode of the cathode of third capacitor, the second DC power supply respectively.
Further, the first switch tube and second switch, third switching tube and the 4th switching tube, the 5th switching tube and
The complementary conducting respectively of 7th switching tube, the 6th switching tube and the 8th switching tube, and the first switch tube and the 4th switching tube, the
The phase difference of five switching tubes and the 6th 180 ° of switching tube phase phase difference, the first switch tube and the 5th switching tube is phase shifting angle
And between -90 ° to 90 °, the duty ratio D phase of the second switch, the 4th switching tube, the 7th switching tube, the 8th switching tube
With and greater than 0.5.
Further, the first switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube,
Six switching tubes, the 7th switching tube and the 8th switching tube are with the inverse power switch tube for leading characteristic.
Further, the turn ratio on transformer primary pair side is n:1, and wherein n is primary side the number of turns of transformer divided by secondary side circle
Number quotient.
Compared with prior art, the present invention have the following advantages that with the utility model has the advantages that
1, voltage steady-state gain isIt can be by reasonably adjusting the turn ratio of transformer, so that converter can be with
With required high voltage gain.
2, first switch tube, second switch, third switching tube, the 4th switching tube, the 5th switching tube, the 6th switching tube,
It is open-minded that no-voltage can be achieved in 7th switching tube and the 8th switching tube, it is possible to reduce switching loss and electromagnetic interference.
3, the voltage stress of the 7th switching tube and the 8th switching tube is only the half of the second DC power supply, not only reduces electricity
The cost on road, and it is suitable for the occasion of high voltage.
4, the electric current of the first inductance and the second inductance interlocks, and the current source ripple of the first DC power supply can be made to reduce, mentioned
The service life of the high energy-storage battery as the first DC power supply.
Detailed description of the invention
Fig. 1 is the circuit diagram of the two-way DC/DC converter of the high-gain suitable for energy-storage system of the invention.
Fig. 2 is the voltage and current waveform of circuit main element in a switch periods.
Fig. 3 a is circuit modal graph one of of the circuit in a switch periods.
Fig. 3 b is the two of circuit modal graph of the circuit in a switch periods.
Fig. 3 c is the three of circuit modal graph of the circuit in a switch periods.
Fig. 3 d is the four of circuit modal graph of the circuit in a switch periods.
Fig. 3 e is the five of circuit modal graph of the circuit in a switch periods.
Fig. 3 f is the six of circuit modal graph of the circuit in a switch periods.
Fig. 3 g is the seven of circuit modal graph of the circuit in a switch periods.
Fig. 3 h is the eight of circuit modal graph of the circuit in a switch periods.
Fig. 3 i is the nine of circuit modal graph of the circuit in a switch periods.
Fig. 3 j is the ten of circuit modal graph of the circuit in a switch periods.
Specific embodiment
Below with reference to specific implementation case to the present invention be suitable for energy-storage system the two-way DC/DC converter of high-gain make into
One step explanation.
It is shown in Figure 1, it is suitable for the two-way DC/DC converter of high-gain of energy-storage system provided by the implementation case,
It include the first DC power supply V1, the first inductance L1, the second inductance L2, first switch tube Q1aAnd its anti-paralleled diode D1aWith post
Raw capacitor C1a, second switch Q1And its anti-paralleled diode D1With parasitic capacitance C1, third switching tube Q2aAnd its inverse parallel two
Pole pipe D2aWith parasitic capacitance C2a, the 4th switching tube Q2And its anti-paralleled diode D2With parasitic capacitance C2, first capacitor CC, transformation
The device T and its concatenated equivalent Same Name of Ends leakage inductance L of primary siderL is felt in parallel the encouraging in secondary sidem, the 5th switching tube S1And its two pole of inverse parallel
Pipe Ds1With parasitic capacitance Cs1, the 6th switching tube S2And its anti-paralleled diode Ds2With parasitic capacitance Cs2, the 7th switching tube S3And its
Anti-paralleled diode Ds3With parasitic capacitance Cs3, the 8th switching tube S4And its anti-paralleled diode Ds4With parasitic capacitance Cs4, the second electricity
Hold Cu, third capacitor Cd, the second DC power supply V2；Wherein, the first DC power supply V1Anode respectively with the first inductance L1's
One end, the second inductance L2One end connection, the first inductance L1The other end respectively with first switch tube Q1aSource electrode, second switch
Pipe Q1Drain electrode, the concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderConnection, the second inductance L2The other end respectively with third
Switching tube Q2aSource electrode, the 4th switching tube Q2Drain electrode, transformer T primary side different name end connection, first switch tube Q1aDrain electrode
Respectively with third switching tube Q2aDrain electrode, first capacitor CCAnode connection, second switch Q1Source electrode opened respectively with the 4th
Close pipe Q2Source electrode, first capacitor CCCathode connection, the Same Name of Ends on transformer T pair side respectively with the 5th switching tube S1Source electrode,
6th switching tube S2Drain electrode, the 7th switching tube S3Drain electrode connection, the different name end on transformer T pair side respectively with the 8th switching tube
S4Drain electrode, the second capacitor CuCathode, third capacitor CdAnode connection, the 7th switching tube S3Source electrode and the 8th switching tube S4
Source electrode connection, the 5th switching tube S1Drain electrode respectively with the second capacitor CuAnode, the second DC power supply V2Anode connection,
6th switching tube S2Source electrode respectively with third capacitor CdCathode, the second DC power supply V2Cathode connection.
The concrete condition of the two-way DC/DC converter of the above-mentioned high-gain suitable for energy-storage system of the present embodiment is as follows:
1) model analysis
Fig. 2 draws out the main element waveform diagram under circuit stability working condition.
Detailed analysis is carried out below in conjunction with working condition of Fig. 3 a to Fig. 3 j to circuit:
A. stage θ0Before such as Fig. 3 a, this stage second switch Q1, third switching tube Q2a, the 6th switching tube S2With the 7th
Switching tube S3On state is maintained under the action of driving signal；First switch tube Q1a, the 4th switching tube Q2, the 5th switching tube S1
With the 8th switching tube S4Off state is maintained under the action of driving signal；Transformer T original edge voltage is by first capacitor CCClamp
For-VC；Transformer T secondary voltage is by third capacitor CdClamp is-V2/2；L is felt in parallel the encouraging in transformer T pair sidemElectric current iLmBy
It is negative to become just；The concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrIt remains unchanged；Power is from the first power supply V1It passes
It is defeated to arrive second source V2；As third switching tube Q2aDriving signal disappear when, this stage terminates.
B. stage θ0~θ1Such as Fig. 3 b, this stage third switching tube Q2aIt is turned off under the action of driving signal；Second inductance L2
Electric current iL2With the concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrGive third switching tube Q2aParasitic capacitance
C2aCharging, while giving the 4th switching tube Q2Parasitic capacitance C2Electric discharge, until the 4th switching tube Q2Anti-paralleled diode D2It leads
It is logical；As the 4th switching tube Q2Driving signal arrive when, this stage terminates.
C. stage θ1~θ2Such as Fig. 3 c, the 4th switching tube Q of this stage2No-voltage conducting is realized under the action of driving signal；
Transformer T original edge voltage is by-VCBecome 0；Transformer T secondary voltage is by third capacitor CdClamp maintains-V2/2；Transformer T pair
L is felt in parallel the encouraging in sidemElectric current iLmIt is lasting to rise；The concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrRise；
As the 6th switching tube S2Driving signal disappear when, this stage terminates.In this stage, transformer T primary side is concatenated equivalent of the same name
Hold leakage inductance LrElectric current iLrExpression formula are as follows:
D. stage θ2~θ3Such as Fig. 3 d, the 6th switching tube S of this stage2It is turned off under the action of driving signal；Transformer T pair
L is felt in parallel the encouraging in sidemElectric current iLmTo the 6th switching tube S2Parasitic capacitance Cs2Charging, while giving the 8th switching tube S4Parasitism
Capacitor Cs4Electric discharge, until the 8th switching tube S4Anti-paralleled diode Ds4Conducting；As the 8th switching tube S4Driving signal arrive
When, this stage terminates.
E. stage θ3~θ4Such as Fig. 3 e, the 8th switching tube S of this stage4No-voltage conducting is realized under the action of driving signal；
Transformer T original edge voltage is maintained 0；Transformer T secondary voltage is served as reasons-V2/ 2 become 0；L is felt in parallel the encouraging in transformer T pair sidem's
Electric current iLmIt remains unchanged；The concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrIt is 0；As second switch Q1's
When driving signal disappears, this stage terminates.In this stage, the concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLr
Expression formula are as follows:
iLr(θ)=0 (θ2< θ≤θ4) (2)
F. stage θ4~θ5Such as Fig. 3 f, this stage second switch Q1It is turned off under the action of driving signal；First inductance L1
Electric current iL1With the concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrGive second switch Q1Parasitic capacitance C1
Charging, while giving first switch tube Q1aParasitic capacitance C1aElectric discharge, until first switch tube Q1aAnti-paralleled diode D1aIt leads
It is logical；As first switch tube Q1aDriving signal arrive when, this stage terminates.
G. stage θ5~θ6Such as Fig. 3 g, this stage first switch tube Q1aRealize that no-voltage is led under the action of driving signal
It is logical；Transformer T original edge voltage is by first capacitor CCClamp becomes V from 0C；Transformer T secondary voltage is maintained 0；Transformer T pair side
In parallel encourages sense LmElectric current iLmIt remains unchanged；The concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrRise；When
7th switching tube S3Driving signal disappear when, this stage terminates.In this stage, the concatenated equivalent Same Name of Ends of transformer T primary side
Leakage inductance LrElectric current iLrExpression formula are as follows:
H. stage θ6~θ7Such as Fig. 3 h, the 7th switching tube S of this stage3It is turned off under the action of driving signal；Transformer T is former
The concatenated equivalent Same Name of Ends leakage inductance L in siderElectric current iLrIt is equivalent to give the 7th switching tube S to secondary side3Parasitic capacitance Cs3Charging, simultaneously
To the 5th switching tube S1Parasitic capacitance Cs1Electric discharge, until the 5th switching tube S1Anti-paralleled diode Ds1Conducting；It opens when the 5th
Close pipe S1Driving signal arrive when, this stage terminates.
I. stage θ7~θ8Such as Fig. 3 i, the 5th switching tube S of this stage1No-voltage conducting is realized under the action of driving signal；
Transformer T original edge voltage is by first capacitor CCClamp is VC；Transformer T secondary voltage is by third capacitor CdClamp becomes V from 02/
2；L is felt in parallel the encouraging in transformer T pair sidemElectric current iLmFrom just becoming negative；The concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary sider
Electric current iLrIt remains unchanged；Power is from the first power supply V1It is transferred to second source V2；As first switch tube Q1aDriving signal disappear
When mistake, this stage terminates.In this stage, the concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrExpression formula are as follows:
iLr(θ)=iLr(θ6)(θ6< θ≤θ8) (4)
J. stage θ8Later such as Fig. 3 j, this stage first switch tube Q1aIt is turned off under the action of driving signal；First inductance
L1Electric current iL1With the concatenated equivalent Same Name of Ends leakage inductance L of transformer T primary siderElectric current iLrGive first switch tube Q1aParasitic capacitance
C1aCharging, while giving second switch Q1Parasitic capacitance C1Electric discharge, until second switch Q1Anti-paralleled diode D1It leads
It is logical.
Since former secondary side structure is all symmetrical, so second half of the cycle after this will recycle, remaining state will
It is not described in detail.
2) steady-state gain
Under the action of crisscross parallel Boost circuit, transformer T original edge voltage amplitude uabAre as follows:
Secondary side is T-type neutral point clamp circuit, so its voltage magnitude ucdAre as follows:
Since the no-load voltage ratio of transformer T is n, and topology has the function of transformer two sides voltage matches, so having:
uab=nucd (7)
According to (5), (6), (7) Shi Ke get, steady-state gain M are as follows:
3) the first power supply V1Current ripples
Due to the first inductance L1With the second inductance L2Parameter is consistent, using the symmetric double Boost topology of crisscross parallel, so
First inductance L1With the second inductance L2Real time current waveform be 180 ° of phase phase difference of two waveforms.Below with the second inductance L2
For example, average current virtual value are as follows:
As the 4th switching tube Q2When conducting, the second inductance L2Voltage by the first power supply V1Clamp, electric current are begun to ramp up,
During this, the second inductance L2The instantaneous value of electric current are as follows:
As the 4th switching tube Q2When shutdown, the second inductance L2The voltage of two sides is-V1, electric current begins to decline, during this period,
Second inductance L2The instantaneous value of electric current are as follows:
It can be obtained by voltage-second balance principle, the first inductance L1With the second inductance L2Current ripples Δ iL1、ΔiL2With total input
Current ripples Δ i are as follows:
Wherein TsFor switch periods.
It is possible thereby to find, when D is 0.5, the current ripples of total input current are 0.When D is not 0.5, input electricity
Flow liner wave frequency rate is 2 times of switching frequency, and the booster converter of Amplitude Ration list inductive type is much smaller, can be to the first power supply V1
The energy-storage travelling wave tube service life of side plays extraordinary protective effect.
Embodiment described above is only the preferred embodiments of the invention, and but not intended to limit the scope of the present invention, therefore
All shapes according to the present invention change made by principle, should all be included within the scope of protection of the present invention.
Claims (4)
1. a kind of two-way DC/DC converter of high-gain suitable for energy-storage system, it is characterised in that: include the first DC power supply
(V1), the first inductance (L1), the second inductance (L2), first switch tube (Q1a) and its anti-paralleled diode (D1a) and parasitic capacitance
(C1a), second switch (Q1) and its anti-paralleled diode (D1) and parasitic capacitance (C1), third switching tube (Q2a) and its it is anti-simultaneously
Union II pole pipe (D2a) and parasitic capacitance (C2a), the 4th switching tube (Q2) and its anti-paralleled diode (D2) and parasitic capacitance (C2),
First capacitor (CC), transformer (T) and its concatenated equivalent Same Name of Ends leakage inductance (L of primary sider) and secondary side it is in parallel encourage sense (Lm), the
Five switching tube (S1) and its anti-paralleled diode (Ds1) and parasitic capacitance (Cs1), the 6th switching tube (S2) and its anti-paralleled diode
(Ds2) and parasitic capacitance (Cs2), the 7th switching tube (S3) and its anti-paralleled diode (Ds3) and parasitic capacitance (Cs3), the 8th switch
Manage (S4) and its anti-paralleled diode (Ds4) and parasitic capacitance (Cs4), the second capacitor (Cu), third capacitor (Cd), the second direct current
Source (V2)；Wherein, the first DC power supply (V1) anode respectively with the first inductance (L1) one end, the second inductance (L2)
One end connection, the first inductance (L1) the other end respectively with first switch tube (Q1a) source electrode, second switch (Q1)
Drain electrode, the concatenated equivalent Same Name of Ends leakage inductance (L of transformer (T) primary sider) connection, the second inductance (L2) the other end respectively with
Third switching tube (Q2a) source electrode, the 4th switching tube (Q2) drain electrode, transformer (T) primary side different name end connection, described first
Switching tube (Q1a) drain electrode respectively with third switching tube (Q2a) drain electrode, first capacitor (CC) anode connection, described second opens
Close pipe (Q1) source electrode respectively with the 4th switching tube (Q2) source electrode, first capacitor (CC) cathode connection, the transformer (T)
The Same Name of Ends on secondary side respectively with the 5th switching tube (S1) source electrode, the 6th switching tube (S2) drain electrode, the 7th switching tube (S3) leakage
Pole connection, the different name end on the secondary side of the transformer (T) respectively with the 8th switching tube (S4) drain electrode, the second capacitor (Cu) cathode,
Third capacitor (Cd) anode connection, the 7th switching tube (S3) source electrode and the 8th switching tube (S4) source electrode connection, it is described
5th switching tube (S1) drain electrode respectively with the second capacitor (Cu) anode, the second DC power supply (V2) anode connection, described the
Six switching tube (S2) source electrode respectively with third capacitor (Cd) cathode, the second DC power supply (V2) cathode connection.
2. the two-way DC/DC converter of a kind of high-gain suitable for energy-storage system according to claim 1, feature exist
In: the first switch tube (Q1a) and second switch (Q1), third switching tube (Q2a) and the 4th switching tube (Q2), the 5th switch
Manage (S1) and the 7th switching tube (S3), the 6th switching tube (S2) and the 8th switching tube (S4) complementary conducting respectively, and described first opens
Close pipe (Q1a) and the 4th switching tube (Q2), the 5th switching tube (S1) and the 6th switching tube (S2) 180 ° of phase phase difference, described first opens
Close pipe (Q1a) and the 5th switching tube (S1) phase difference be phase shifting angleAnd between -90 ° to 90 °, the second switch
(Q1), the 4th switching tube (Q2), the 7th switching tube (S3), the 8th switching tube (S4) duty ratio D it is identical and be greater than 0.5.
3. the two-way DC/DC converter of a kind of high-gain suitable for energy-storage system according to claim 1, feature exist
In: the first switch tube (Q1a), second switch (Q1), third switching tube (Q2a), the 4th switching tube (Q2), the 5th switching tube
(S1), the 6th switching tube (S2), the 7th switching tube (S3) and the 8th switching tube (S4) it is with the inverse power switch tube for leading characteristic.
4. the two-way DC/DC converter of a kind of high-gain suitable for energy-storage system according to claim 1, feature exist
In: the turn ratio on the former secondary side of the transformer (T) is n:1, and wherein n is the primary side the number of turns of transformer (T) divided by secondary side the number of turns quotient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910405861.0A CN110061627A (en) | 2019-05-15 | 2019-05-15 | A kind of two-way DC/DC converter of high-gain suitable for energy-storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910405861.0A CN110061627A (en) | 2019-05-15 | 2019-05-15 | A kind of two-way DC/DC converter of high-gain suitable for energy-storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110061627A true CN110061627A (en) | 2019-07-26 |
Family
ID=67323408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910405861.0A Pending CN110061627A (en) | 2019-05-15 | 2019-05-15 | A kind of two-way DC/DC converter of high-gain suitable for energy-storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110061627A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142735A (en) * | 2021-11-22 | 2022-03-04 | 厦门大学 | High-gain low-ripple soft-switching bidirectional DC-DC converter |
| CN115021556A (en) * | 2022-05-06 | 2022-09-06 | 华南理工大学 | Offshore wind power high-gain DC/DC converter based on coupling inductor |
| CN114938140B (en) * | 2022-04-18 | 2024-05-10 | 华南农业大学 | Wide-voltage-range bidirectional DC-DC converter suitable for new energy automobile |
| CN115021556B (en) * | 2022-05-06 | 2024-07-02 | 华南理工大学 | Offshore wind power high-gain DC/DC converter based on coupling inductance |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391009A (en) * | 2013-07-18 | 2013-11-13 | 厦门大学 | High-gain isolated type direct current-direct current (DC-DC) convertor |
| CN103944396A (en) * | 2014-04-11 | 2014-07-23 | 燕山大学 | LLC resonance type three-port DC-DC converter and control method thereof |
| CN103944397A (en) * | 2014-04-11 | 2014-07-23 | 燕山大学 | Boost type isolated DC/DC converter and control method thereof |
| CN104578802A (en) * | 2015-01-20 | 2015-04-29 | 北京理工大学 | Optimal current waveform controlling method for current type two-way DC-DC convertor |
| CN204696926U (en) * | 2015-06-19 | 2015-10-07 | 正德职业技术学院 | A kind of adjustable compression set LLC resonant converter frequently |
| CN104980037A (en) * | 2015-07-07 | 2015-10-14 | 南京航空航天大学 | Secondary side adjustment type fixed frequency resonant converter and control method thereof |
| CN204993103U (en) * | 2015-08-31 | 2016-01-20 | 苏州大学 | Three level three -phase energy storage inverter systems on T type |
| CN106849681A (en) * | 2017-04-11 | 2017-06-13 | 厦门大学 | A kind of high-gain isolated active clamping Sofe Switch DC DC converters |
| CN108448913A (en) * | 2018-03-07 | 2018-08-24 | 浙江大学 | A kind of isolated form AC-DC converter of the single stage type based on crisscross parallel non-bridge PFC circuits and LLC resonance |
| CN209767391U (en) * | 2019-05-15 | 2019-12-10 | 华南理工大学 | high-gain bidirectional DC/DC converter suitable for energy storage system |
-
2019
- 2019-05-15 CN CN201910405861.0A patent/CN110061627A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391009A (en) * | 2013-07-18 | 2013-11-13 | 厦门大学 | High-gain isolated type direct current-direct current (DC-DC) convertor |
| CN103944396A (en) * | 2014-04-11 | 2014-07-23 | 燕山大学 | LLC resonance type three-port DC-DC converter and control method thereof |
| CN103944397A (en) * | 2014-04-11 | 2014-07-23 | 燕山大学 | Boost type isolated DC/DC converter and control method thereof |
| CN104578802A (en) * | 2015-01-20 | 2015-04-29 | 北京理工大学 | Optimal current waveform controlling method for current type two-way DC-DC convertor |
| CN204696926U (en) * | 2015-06-19 | 2015-10-07 | 正德职业技术学院 | A kind of adjustable compression set LLC resonant converter frequently |
| CN104980037A (en) * | 2015-07-07 | 2015-10-14 | 南京航空航天大学 | Secondary side adjustment type fixed frequency resonant converter and control method thereof |
| CN204993103U (en) * | 2015-08-31 | 2016-01-20 | 苏州大学 | Three level three -phase energy storage inverter systems on T type |
| CN106849681A (en) * | 2017-04-11 | 2017-06-13 | 厦门大学 | A kind of high-gain isolated active clamping Sofe Switch DC DC converters |
| CN108448913A (en) * | 2018-03-07 | 2018-08-24 | 浙江大学 | A kind of isolated form AC-DC converter of the single stage type based on crisscross parallel non-bridge PFC circuits and LLC resonance |
| CN209767391U (en) * | 2019-05-15 | 2019-12-10 | 华南理工大学 | high-gain bidirectional DC/DC converter suitable for energy storage system |
Non-Patent Citations (1)
| Title |
|---|
| JUN ZENG等: "A High Voltage-Gain Bidirectional DC–DC Converter With Full-Range ZVS Using Decoupling Control Strategy", 《IEEE》, pages 2775 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114142735A (en) * | 2021-11-22 | 2022-03-04 | 厦门大学 | High-gain low-ripple soft-switching bidirectional DC-DC converter |
| CN114938140B (en) * | 2022-04-18 | 2024-05-10 | 华南农业大学 | Wide-voltage-range bidirectional DC-DC converter suitable for new energy automobile |
| CN115021556A (en) * | 2022-05-06 | 2022-09-06 | 华南理工大学 | Offshore wind power high-gain DC/DC converter based on coupling inductor |
| CN115021556B (en) * | 2022-05-06 | 2024-07-02 | 华南理工大学 | Offshore wind power high-gain DC/DC converter based on coupling inductance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3609065B1 (en) | Phase shift control method for charging circuit | |
| CN105553266B (en) | A kind of crisscross parallel high-gain Boost translation circuits and its working method | |
| CN106059306B (en) | A kind of multiple-unit diode capacitance network high-gain full-bridge isolated DC converter | |
| CN105958816B (en) | A kind of multiple-unit diode capacitance network and coupling inductance high-gain DC converter | |
| CN105958823A (en) | Current continuous high-gain switch voltage rise quasi-Z-source converter circuit | |
| CN105896993A (en) | High-gain isolation type direct-current converter for multi-unit diode capacitor network | |
| CN107888073B (en) | Alternating current-direct current hybrid energy router of all-round soft switch | |
| CN204089603U (en) | A kind of solar grid-connected current transformer based on BOOST isolation boosting topology | |
| CN110048611A (en) | High voltage gain Sofe Switch DC-DC converter based on switching capacity and coupling inductance | |
| CN106130352A (en) | The micro-inverter of intermediate current type double tube positive exciting and numerical control device thereof | |
| TWI664797B (en) | Dc power converter with high voltage gain | |
| Ning et al. | A four-port bidirectional DC-DC converter for renewable energy-battery-DC microgrid system | |
| Yang et al. | Single-phase high-gain bidirectional dc/ac converter based on high step-up/step-down dc/dc converter and dual-input dc/ac converter | |
| CN110829837B (en) | Low-voltage stress ZVS high-gain Boost converter | |
| CN110061627A (en) | A kind of two-way DC/DC converter of high-gain suitable for energy-storage system | |
| CN103337961A (en) | High-voltage transformation ratio bidirectional DC converter and control method thereof | |
| CN204465377U (en) | A kind of and series interleaved formula three Port Translation device | |
| CN109818494A (en) | A kind of quasi- source Y DC-DC converter of high gain voltage type | |
| CN107612349A (en) | The common ground type isolation quasi- Z source converters of high-gain of fuel cell and photovoltaic generation | |
| TWI663816B (en) | Interleaved high step-up dc-dc converter | |
| CN104660045B (en) | Electrical energy changer with energy storage management | |
| Liu et al. | The improved dual active bridge converter with a modified phase shift and variable frequency control | |
| CN107395041A (en) | High conversion efficiency isolated form miniature grid-connected inverter and its control method | |
| CN104967320B (en) | A kind of full-bridge converter control method of asymmetric dutycycle | |
| CN209767391U (en) | high-gain bidirectional DC/DC converter suitable for energy storage system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |