CN107425711A - A kind of high efficiency energy two-way DC converter and control method - Google Patents
A kind of high efficiency energy two-way DC converter and control method Download PDFInfo
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- CN107425711A CN107425711A CN201710199620.6A CN201710199620A CN107425711A CN 107425711 A CN107425711 A CN 107425711A CN 201710199620 A CN201710199620 A CN 201710199620A CN 107425711 A CN107425711 A CN 107425711A
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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
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- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of high efficiency energy two-way DC converter and control method, including full control switching device, inductance L1, electric capacity C1, electric capacity C2, electric capacity C3 and change-over switch K1, change-over switch K2, contact A, contact B and transformer T；The full control switching device includes switch S1, switch S2, switch Si1, switch Si2, diode D1 and diode D2；When working in Non-isolation model, change-over switch K1 make contacts A points, change-over switch K2 closures are controlled；When working in positive-going transition pattern, switch S1 is controlled by pwm control signal, switch S2 shut-offs；When working in reciprocal transformation pattern, switch S1 shut-offs, switch S2 are controlled by PWM.The present invention is combined by simple switching device, inductance capacitance and isolating transformer, both conventional non-isolated direct current energy mapping function can have been realized, isolation circuit function can be set to as needed again, realize non-isolated and isolation circuit conversion on demand, the high efficiency energy application of circuit is realized, meets the engineer applied of different occasions.
Description
Technical field
The present invention relates to a kind of electrotechnical, electronic converter technology, is to be related to a kind of high efficiency energy bidirectional, dc specifically
Converter and control method.
Background technology
Electrical energy transformer is widely used as a kind of electrotechnical, electronic translation circuit in transformation of electrical energy, common DC converting
Circuit can be realized enters line translation on demand to voltage/current etc..In recent years, as the new energy technologies such as photovoltaic generation, battery fill
The development of the energy storage technologies such as electric discharge, new demand is also brought to new converter circuit, as the important step of its transformation of electrical energy,
Its performance by directly influence these applications function is realisation and operational reliability.Particularly in some existing generations of electricity by new energy
There is the application scenario of energy storage again, it is necessary to there is corresponding two-way type DC transfer circuit, in some existing applications, bidirectional, dc
Translation circuit can be divided into isolation and non-isolated two kinds, according to the different different two-way changings for needing to use simple function
Device circuit is realized.In order to further reduce the cost of application, the reversible transducer circuit of high efficiency energy turns into a kind of research should
Use trend.
The content of the invention
For above-mentioned technical problem, the purpose of the present invention is：Propose a kind of high efficiency energy bidirectional, dc conversion
Device, the DC converter are combined by simple switching device, inductance capacitance and isolating transformer, can both realize it is conventional it is non-every
From direct current energy mapping function, isolation circuit function can be set to as needed again, realize non-isolated and isolation circuit by
Need to change, realize the high efficiency energy application of circuit, meet the engineer applied of different occasions.
What the technical solution of the present invention was realized in：A kind of high efficiency energy reversible transducer, including full control switch
Device, inductance L1, electric capacity C1, electric capacity C2, electric capacity C3 and change-over switch K1, change-over switch K2, contact A, contact B and transformer T；
The full control switching device includes switch S1, switch S2, switch Si1, switch Si2, diode D1 and diode D2.
Preferably, the electric capacity C1, switch S1, diode D2, inductance L1, electric capacity C2, change-over switch K1, contact A, electric capacity
The positive non-isolated DC transfer circuit of C3 compositions.
Preferably, the electric capacity C1, switch S2, diode D1, inductance L1, electric capacity C2, change-over switch K1, contact A, electric capacity
The reverse non-isolated DC transfer circuit of C3 compositions.
Preferably, the electric capacity C1, switch S1, diode D2, inductance L1, electric capacity C2, transformer T, change-over switch
K1, contact B, switch Si1, electric capacity C3 form positive isolated DC translation circuit.
Preferably, the electric capacity C1, switch S2, diode D1, inductance L1, transformer T, switch Si2, change-over switch K1,
Contact B, switch Si2, electric capacity C3 composition reverse isolation type DC transfer circuits.
Preferably, the change-over switch K2 is change-over switch altogether.
Preferably, the transformer T is isolating transformer.
A kind of control method of high efficiency energy two-way DC converter, when working in Non-isolation model, control conversion is opened
Close K1 make contacts A points, change-over switch K2 closures；When working in positive-going transition pattern, switch S1 is controlled by pwm control signal,
Switch S2 shut-offs；When working in reciprocal transformation pattern, switch S1 shut-offs, switch S2 are controlled by PWM；
When working in isolation mode of operation, change-over switch K1 make contacts B points are controlled, change-over switch K2 or are then closed altogether,
Or disconnect；In the case where forward direction isolates mode of operation, large range of input and output voltage no-load voltage ratio D>Dset, then isolated variable unit
Full-controlled device and non-isolated conversion full control device simultaneously participate in conversion PWM control, i.e., positive isolated variable when, switch S1
With switch Sil all controlled by PWM, switch S2 turn off, switch Si2 it is open-minded；When reverse isolation converts, switch S2 and switch Si2
All controlled by PWM, switch S1 shut-off, switch Si1 it is open-minded；When wanting input and output voltage no-load voltage ratio D≤Dset of small range, only
Isolated part participate in work, that is, switch S1 open, switch S2 shut-off, under positive isolated variable mode of operation, switch Sil by
PWM controls, switch Si2 are open-minded；Controlled by PWM in reverse isolation operating switch Si2, to switch Si1 open-minded, by adjusting each PWM
The dutycycle of control signal is to change the no-load voltage ratio of input and output voltage, or change isolating transformer T primary and secondary side turn ratio is come
Realize the adjustment to the no-load voltage ratio of isolation and amplifier input and output voltage.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：
A kind of high efficiency energy two-way DC converter and control method of the present invention, passes through simple switching device, inductance capacitance
Combined with isolating transformer, can both realize conventional non-isolated direct current energy mapping function, can be set to as needed again every
From circuit function, non-isolated and isolation circuit conversion on demand is realized, the high efficiency energy application of circuit is realized, meets different occasions
Engineer applied.
Brief description of the drawings
Technical solution of the present invention is described further below in conjunction with the accompanying drawings：
Accompanying drawing 1 is a kind of high efficiency energy two-way DC converter of the present invention and the structural circuit schematic diagram of control method；
Accompanying drawing 2 is a kind of high efficiency energy two-way DC converter of the present invention and the equivalent work of non-isolated mode of operation of control method
Make circuit diagram；
Accompanying drawing 3 is a kind of high efficiency energy two-way DC converter of the present invention and the equivalent D of isolation mode of operation of control method>
Dset working circuit diagrams；
Accompanying drawing 4 for the present invention a kind of high efficiency energy two-way DC converter and control method the equivalent D of isolation mode of operation≤
Dset working circuit diagrams.
Embodiment
Illustrate the present invention below in conjunction with the accompanying drawings.
Accompanying drawing 1 is a kind of high efficiency energy two-way DC converter of the present invention, including full control switching device, inductance
L1, electric capacity C1, electric capacity C2, electric capacity C3 and change-over switch K1, change-over switch K2, contact A, contact B and transformer T；The full control
Switching device includes switch S1, switch S2, switch Si1, switch Si2, diode D1 and diode D2；The change-over switch K2 is
Change-over switch altogether；Preferably, the transformer T is isolating transformer；The change-over switch K1 can select according to application demand
Isolation and non-isolated mode of operation are selected, that is, is non-isolated mode of operation when being switched to contact A point, it is non-isolated during make contact B points
Mode of operation.
The non-isolated mode of operation equivalent operation circuit diagram of the present invention as shown in Figure 2, the electric capacity C1, switch S1, two poles
Pipe D2, inductance L1, electric capacity C2, change-over switch K1, contact A, the positive non-isolated DC transfer circuit of electric capacity C3 compositions；The electric capacity
Reversely non-isolated direct current becomes for C1, switch S2, diode D1, inductance L1, electric capacity C2, change-over switch K1, contact A, electric capacity C3 compositions
Change circuit.
It is illustrated in figure 3 isolation mode of operation D>Dset working circuit diagram equivalent circuit diagrams, the electric capacity C1, switch
S1, diode D2, inductance L1, electric capacity C2, transformer T, change-over switch K1, contact B, switch Si1, the positive isolation of electric capacity C3 compositions
DC transfer circuit；The electric capacity C1, switch S2, diode D1, inductance L1, transformer T, switch Si2, change-over switch K1, touch
Point B, switch Si2, electric capacity C3 composition reverse isolation type DC transfer circuits.
It is illustrated in figure 4 isolation mode of operation D≤Dset working circuit diagram equivalent circuit diagrams.In the requirement of D≤Dset patterns
Under, that is, need less input and output voltage no-load voltage ratio, the electric capacity C1, switch S1, diode D2, inductance L1, electric capacity C2,
Transformer T, change-over switch K1, contact B, switch Si1, electric capacity C3 form positive isolated DC translation circuit；The electric capacity C1, open
It is reverse to close S2, diode D1, inductance L1, transformer T, switch Si2, change-over switch K1, contact B, switch Si2, electric capacity C3 compositions
Isolated DC translation circuit.
Under the circuit-mode of accompanying drawing 3 and accompanying drawing 4, common ground selective switchgear K2 is additionally provided with the translation circuit,
Change-over switch K2 is connected under Non-isolation model, realizes input and output side altogether, can be according to using need under isolation mode
Choose whether input and output altogether.
A kind of control method of high efficiency energy two-way DC converter, when working in Non-isolation model, control conversion is opened
Close K1 make contacts A points, change-over switch K2 closures；When working in positive-going transition pattern, switch S1 is controlled by pwm control signal,
Switch S2 shut-offs；When working in reciprocal transformation pattern, switch S1 shut-offs, switch S2 are controlled by PWM；
When working in isolation mode of operation, change-over switch K1 make contacts B points are controlled, change-over switch K2 or are then closed altogether,
Or disconnect；In the case where forward direction isolates mode of operation, large range of input and output voltage no-load voltage ratio D>Dset, then isolated variable unit
Full-controlled device and non-isolated conversion full control device simultaneously participate in conversion PWM control, i.e., positive isolated variable when, switch S1
With switch Sil all controlled by PWM, switch S2 turn off, switch Si2 it is open-minded；When reverse isolation converts, switch S2 and switch Si2
All controlled by PWM, switch S1 shut-off, switch Si1 it is open-minded；When wanting input and output voltage no-load voltage ratio D≤Dset of small range, only
Isolated part participate in work, that is, switch S1 open, switch S2 shut-off, under positive isolated variable mode of operation, switch Sil by
PWM controls, switch Si2 are open-minded；Controlled by PWM in reverse isolation operating switch Si2, to switch Si1 open-minded, by adjusting each PWM
The dutycycle of control signal can change the no-load voltage ratio of input and output voltage, can also be provided in design and change isolating transformer
T primary and secondary side turn ratio realizes the adjustment of the no-load voltage ratio to isolation and amplifier input and output voltage.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all cover within the scope of the present invention.
Claims (8)
- A kind of 1. high efficiency energy two-way DC converter, it is characterised in that：Including full control switching device, inductance L1, electric capacity C1, electricity Hold C2, electric capacity C3 and change-over switch K1, change-over switch K2, contact A, contact B and transformer T；The full control switching device includes Switch S1, switch S2, switch Si1, switch Si2, diode D1 and diode D2.
- A kind of 2. high efficiency energy two-way DC converter according to claim 1, it is characterised in that：The electric capacity C1, open Close the positive non-isolated DC converting electricity of S1, diode D2, inductance L1, electric capacity C2, change-over switch K1, contact A, electric capacity C3 compositions Road.
- A kind of 3. high efficiency energy two-way DC converter according to claim 1, it is characterised in that：The electric capacity C1, open Close S2, diode D1, inductance L1, electric capacity C2, change-over switch K1, contact A, electric capacity C3 compositions reversely non-isolated DC converting electricity Road.
- A kind of 4. high efficiency energy two-way DC converter according to claim 1, it is characterised in that：The electric capacity C1, switch S1, diode D2, inductance L1, electric capacity C2, transformer T, change-over switch K1, contact B, switch Si1, electric capacity C3 compositions Positive isolated DC translation circuit.
- A kind of 5. high efficiency energy two-way DC converter according to claim 1, it is characterised in that：The electric capacity C1, open It is reverse to close S2, diode D1, inductance L1, transformer T, switch Si2, change-over switch K1, contact B, switch Si2, electric capacity C3 compositions Isolated DC translation circuit.
- A kind of 6. high efficiency energy two-way DC converter according to claim 1, it is characterised in that：The change-over switch K2 For common ground change-over switch.
- A kind of 7. high efficiency energy two-way DC converter according to claim 1, it is characterised in that：The transformer T is Isolating transformer.
- A kind of 8. control method of high efficiency energy two-way DC converter, it is characterised in that：When working in Non-isolation model, control Change-over switch K1 make contacts A points processed, change-over switch K2 closures；When working in positive-going transition pattern, switch S1 is controlled by PWM to be believed Number control, switch S2 shut-off；When working in reciprocal transformation pattern, switch S1 shut-offs, switch S2 are controlled by PWM；When working in isolation mode of operation, change-over switch K1 make contacts B points are controlled, change-over switch K2 or are then closed altogether, Or disconnect；In the case where forward direction isolates mode of operation, large range of input and output voltage no-load voltage ratio D>Dset, then isolated variable unit Full-controlled device and non-isolated conversion full control device simultaneously participate in conversion PWM control, i.e., positive isolated variable when, switch S1 With switch Sil all controlled by PWM, switch S2 turn off, switch Si2 it is open-minded；When reverse isolation converts, switch S2 and switch Si2 All controlled by PWM, switch S1 shut-off, switch Si1 it is open-minded；When wanting input and output voltage no-load voltage ratio D≤Dset of small range, only Isolated part participate in work, that is, switch S1 open, switch S2 shut-off, under positive isolated variable mode of operation, switch Sil by PWM controls, switch Si2 are open-minded；Controlled by PWM in reverse isolation operating switch Si2, to switch Si1 open-minded, by adjusting each PWM The dutycycle of control signal is to change the no-load voltage ratio of input and output voltage, or change isolating transformer T primary and secondary side turn ratio is come Realize the adjustment to the no-load voltage ratio of isolation and amplifier input and output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710199620.6A CN107425711A (en) | 2017-03-30 | 2017-03-30 | A kind of high efficiency energy two-way DC converter and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710199620.6A CN107425711A (en) | 2017-03-30 | 2017-03-30 | A kind of high efficiency energy two-way DC converter and control method |
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| CN107425711A true CN107425711A (en) | 2017-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710199620.6A Pending CN107425711A (en) | 2017-03-30 | 2017-03-30 | A kind of high efficiency energy two-way DC converter and control method |
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| CN101572413A (en) * | 2009-06-05 | 2009-11-04 | 武汉珞珈天铭电气科技有限公司 | Low-voltage line voltage compensating device and compensating method thereof |
| CN201904738U (en) * | 2010-11-30 | 2011-07-20 | 中国工程物理研究院流体物理研究所 | Bipolar nanosecond high-voltage narrow-pulse generator |
| JP2013074779A (en) * | 2011-09-29 | 2013-04-22 | Fujitsu Telecom Networks Ltd | INSULATED BIDIRECTIONAL Cuk CONVERTER AND DRIVE METHOD THEREOF |
| CN104601034A (en) * | 2015-02-06 | 2015-05-06 | 山东理工大学 | Multi-module pulsed power supply based on energy storage of high-temperature super-conduction pulsing transformers |
| CN106357116A (en) * | 2016-08-30 | 2017-01-25 | 中国西电电气股份有限公司 | Main circuit for charging and discharging device of micro-grid system and control method of main circuit |
| CN206727873U (en) * | 2017-03-30 | 2017-12-08 | 苏州市职业大学 | A kind of high efficiency energy two-way DC converter |
-
2017
- 2017-03-30 CN CN201710199620.6A patent/CN107425711A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101572413A (en) * | 2009-06-05 | 2009-11-04 | 武汉珞珈天铭电气科技有限公司 | Low-voltage line voltage compensating device and compensating method thereof |
| CN201904738U (en) * | 2010-11-30 | 2011-07-20 | 中国工程物理研究院流体物理研究所 | Bipolar nanosecond high-voltage narrow-pulse generator |
| JP2013074779A (en) * | 2011-09-29 | 2013-04-22 | Fujitsu Telecom Networks Ltd | INSULATED BIDIRECTIONAL Cuk CONVERTER AND DRIVE METHOD THEREOF |
| CN104601034A (en) * | 2015-02-06 | 2015-05-06 | 山东理工大学 | Multi-module pulsed power supply based on energy storage of high-temperature super-conduction pulsing transformers |
| CN106357116A (en) * | 2016-08-30 | 2017-01-25 | 中国西电电气股份有限公司 | Main circuit for charging and discharging device of micro-grid system and control method of main circuit |
| CN206727873U (en) * | 2017-03-30 | 2017-12-08 | 苏州市职业大学 | A kind of high efficiency energy two-way DC converter |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171201 |
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| RJ01 | Rejection of invention patent application after publication |